wsemi
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A support package for web developer.
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<title>composeToTree.mjs - Documentation</title>
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<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="wsemi.html">wsemi</a><ul class='methods'><li data-type='method'><a href="wsemi.html#.ab2blob">ab2blob</a></li><li data-type='method'><a href="wsemi.html#.ab2u8arr">ab2u8arr</a></li><li data-type='method'><a href="wsemi.html#.addExcelWorksheetFromData">addExcelWorksheetFromData</a></li><li data-type='method'><a href="wsemi.html#.addMonth">addMonth</a></li><li data-type='method'><a href="wsemi.html#.aes2str">aes2str</a></li><li data-type='method'><a href="wsemi.html#.alive">alive</a></li><li data-type='method'><a href="wsemi.html#.arr2dt">arr2dt</a></li><li data-type='method'><a href="wsemi.html#.arrAccum">arrAccum</a></li><li data-type='method'><a href="wsemi.html#.arrAdd">arrAdd</a></li><li data-type='method'><a href="wsemi.html#.arrAt">arrAt</a></li><li data-type='method'><a href="wsemi.html#.arrDiff">arrDiff</a></li><li data-type='method'><a href="wsemi.html#.arrFilterByKeywords">arrFilterByKeywords</a></li><li data-type='method'><a href="wsemi.html#.arrFilterByNum">arrFilterByNum</a></li><li data-type='method'><a href="wsemi.html#.arrFilterByPnum">arrFilterByPnum</a></li><li data-type='method'><a href="wsemi.html#.arrFilterByPnumAndToLog">arrFilterByPnumAndToLog</a></li><li data-type='method'><a href="wsemi.html#.arrFind">arrFind</a></li><li data-type='method'><a href="wsemi.html#.arrGroupByMaxmin">arrGroupByMaxmin</a></li><li data-type='method'><a href="wsemi.html#.arrHas">arrHas</a></li><li data-type='method'><a href="wsemi.html#.arrInsert">arrInsert</a></li><li data-type='method'><a href="wsemi.html#.arrLookupByMaxmin">arrLookupByMaxmin</a></li><li data-type='method'><a href="wsemi.html#.arrMax">arrMax</a></li><li data-type='method'><a href="wsemi.html#.arrMin">arrMin</a></li><li data-type='method'><a href="wsemi.html#.arrMulti">arrMulti</a></li><li data-type='method'><a href="wsemi.html#.arrNorm">arrNorm</a></li><li data-type='method'><a href="wsemi.html#.arrProduct">arrProduct</a></li><li data-type='method'><a href="wsemi.html#.arrReduce">arrReduce</a></li><li data-type='method'><a href="wsemi.html#.arrSep">arrSep</a></li><li data-type='method'><a href="wsemi.html#.arrSort">arrSort</a></li><li data-type='method'><a href="wsemi.html#.asind">asind</a></li><li data-type='method'><a href="wsemi.html#.atan2d">atan2d</a></li><li data-type='method'><a href="wsemi.html#.atand">atand</a></li><li data-type='method'><a href="wsemi.html#.attstr">attstr</a></li><li data-type='method'><a href="wsemi.html#.b642obj">b642obj</a></li><li data-type='method'><a href="wsemi.html#.b642str">b642str</a></li><li data-type='method'><a href="wsemi.html#.b642u16arr">b642u16arr</a></li><li data-type='method'><a href="wsemi.html#.b642u8arr">b642u8arr</a></li><li data-type='method'><a href="wsemi.html#.binstr">binstr</a></li><li data-type='method'><a href="wsemi.html#.blob2ab">blob2ab</a></li><li data-type='method'><a href="wsemi.html#.blob2b64">blob2b64</a></li><li data-type='method'><a href="wsemi.html#.blob2str">blob2str</a></li><li data-type='method'><a href="wsemi.html#.blob2u8arr">blob2u8arr</a></li><li data-type='method'><a href="wsemi.html#.blobs2b64s">blobs2b64s</a></li><li data-type='method'><a href="wsemi.html#.blobs2u8arrs">blobs2u8arrs</a></li><li data-type='method'><a href="wsemi.html#.bodyLog">bodyLog</a></li><li data-type='method'><a href="wsemi.html#.browserView">browserView</a></li><li data-type='method'><a href="wsemi.html#.browserViewFromBlob">browserViewFromBlob</a></li><li data-type='method'><a href="wsemi.html#.browserViewFromText">browserViewFromText</a></li><li data-type='method'><a href="wsemi.html#.browserViewFromU8arr">browserViewFromU8arr</a></li><li data-type='method'><a href="wsemi.html#.bs2u8arr">bs2u8arr</a></li><li data-type='method'><a href="wsemi.html#.bufRead">bufRead</a></li><li data-type='method'><a href="wsemi.html#.bufReadDbl">bufReadDbl</a></li><li data-type='method'><a href="wsemi.html#.bufWrite">bufWrite</a></li><li data-type='method'><a href="wsemi.html#.bufWriteDbl">bufWriteDbl</a></li><li data-type='method'><a href="wsemi.html#.cache">cache</a></li><li data-type='method'><a href="wsemi.html#.cbol">cbol</a></li><li data-type='method'><a href="wsemi.html#.cdbl">cdbl</a></li><li data-type='method'><a href="wsemi.html#.cfilesize">cfilesize</a></li><li data-type='method'><a href="wsemi.html#.cfinancial">cfinancial</a></li><li data-type='method'><a href="wsemi.html#.cint">cint</a></li><li data-type='method'><a href="wsemi.html#.clearXSS">clearXSS</a></li><li data-type='method'><a href="wsemi.html#.color">color</a></li><li data-type='method'><a href="wsemi.html#.composeToTree">composeToTree</a></li><li data-type='method'><a href="wsemi.html#.convertToTree">convertToTree</a></li><li data-type='method'><a href="wsemi.html#.copyStrToClipboard">copyStrToClipboard</a></li><li data-type='method'><a href="wsemi.html#.cosd">cosd</a></li><li data-type='method'><a href="wsemi.html#.cotd">cotd</a></li><li data-type='method'><a href="wsemi.html#.createExcelWorkbook">createExcelWorkbook</a></li><li data-type='method'><a href="wsemi.html#.cscd">cscd</a></li><li data-type='method'><a href="wsemi.html#.cstr">cstr</a></li><li data-type='method'><a href="wsemi.html#.day2cht">day2cht</a></li><li data-type='method'><a href="wsemi.html#.debounce">debounce</a></li><li data-type='method'><a href="wsemi.html#.delay">delay</a></li><li data-type='method'><a href="wsemi.html#.dig">dig</a></li><li data-type='method'><a href="wsemi.html#.digExp">digExp</a></li><li data-type='method'><a href="wsemi.html#.domAlert">domAlert</a></li><li data-type='method'><a href="wsemi.html#.domAppend">domAppend</a></li><li data-type='method'><a href="wsemi.html#.domCancelEvent">domCancelEvent</a></li><li data-type='method'><a href="wsemi.html#.domCompareText">domCompareText</a></li><li data-type='method'><a href="wsemi.html#.domCompareTextDyn">domCompareTextDyn</a></li><li data-type='method'><a href="wsemi.html#.domConvertToPic">domConvertToPic</a></li><li data-type='method'><a href="wsemi.html#.domConvertToPicDyn">domConvertToPicDyn</a></li><li data-type='method'><a href="wsemi.html#.domDetect">domDetect</a></li><li data-type='method'><a href="wsemi.html#.domDrag">domDrag</a></li><li data-type='method'><a href="wsemi.html#.domDragBarAndScroll">domDragBarAndScroll</a></li><li data-type='method'><a href="wsemi.html#.domDragPreview">domDragPreview</a></li><li data-type='method'><a href="wsemi.html#.domDropFiles">domDropFiles</a></li><li data-type='method'><a href="wsemi.html#.domElementsFromPoint">domElementsFromPoint</a></li><li data-type='method'><a href="wsemi.html#.domFadeIn">domFadeIn</a></li><li data-type='method'><a href="wsemi.html#.domFadeOut">domFadeOut</a></li><li data-type='method'><a href="wsemi.html#.domFind">domFind</a></li><li data-type='method'><a href="wsemi.html#.domFinds">domFinds</a></li><li data-type='method'><a href="wsemi.html#.domGetAttr">domGetAttr</a></li><li data-type='method'><a href="wsemi.html#.domGetBoudRect">domGetBoudRect</a></li><li data-type='method'><a href="wsemi.html#.domGetBoudRectRefSelf">domGetBoudRectRefSelf</a></li><li data-type='method'><a href="wsemi.html#.domGetFileAccept">domGetFileAccept</a></li><li data-type='method'><a href="wsemi.html#.domGetFiles">domGetFiles</a></li><li data-type='method'><a href="wsemi.html#.domGetParents">domGetParents</a></li><li data-type='method'><a href="wsemi.html#.domGetPointFromEvent">domGetPointFromEvent</a></li><li data-type='method'><a href="wsemi.html#.domGetScrollableParent">domGetScrollableParent</a></li><li data-type='method'><a href="wsemi.html#.domGetWindowSize">domGetWindowSize</a></li><li data-type='method'><a href="wsemi.html#.domIsClientXYIn">domIsClientXYIn</a></li><li data-type='method'><a href="wsemi.html#.domIsFocused">domIsFocused</a></li><li data-type='method'><a href="wsemi.html#.domIsVisible">domIsVisible</a></li><li data-type='method'><a href="wsemi.html#.domPrepend">domPrepend</a></li><li data-type='method'><a href="wsemi.html#.domRemove">domRemove</a></li><li data-type='method'><a href="wsemi.html#.domRenderMarkdownMind">domRenderMarkdownMind</a></li><li data-type='method'><a href="wsemi.html#.domRenderMarkdownMindDyn">domRenderMarkdownMindDyn</a></li><li data-type='method'><a href="wsemi.html#.domRipple">domRipple</a></li><li data-type='method'><a href="wsemi.html#.domScrollIntoView">domScrollIntoView</a></li><li data-type='method'><a href="wsemi.html#.domScrollTo">domScrollTo</a></li><li data-type='method'><a href="wsemi.html#.domShowImages">domShowImages</a></li><li data-type='method'><a href="wsemi.html#.domShowImagesDyn">domShowImagesDyn</a></li><li data-type='method'><a href="wsemi.html#.domShowInputAndGetFiles">domShowInputAndGetFiles</a></li><li data-type='method'><a href="wsemi.html#.domShowInputAndGetFilesU8Arrs">domShowInputAndGetFilesU8Arrs</a></li><li data-type='method'><a href="wsemi.html#.domTooltip">domTooltip</a></li><li data-type='method'><a href="wsemi.html#.domTriggerEvent">domTriggerEvent</a></li><li data-type='method'><a href="wsemi.html#.domVirtualCreate">domVirtualCreate</a></li><li data-type='method'><a href="wsemi.html#.domVirtualCreateQueue">domVirtualCreateQueue</a></li><li data-type='method'><a href="wsemi.html#.downloadExcelFileFromData">downloadExcelFileFromData</a></li><li data-type='method'><a href="wsemi.html#.downloadExcelFileFromDataDyn">downloadExcelFileFromDataDyn</a></li><li data-type='method'><a href="wsemi.html#.downloadFileFromB64">downloadFileFromB64</a></li><li data-type='method'><a href="wsemi.html#.downloadFileFromBlob">downloadFileFromBlob</a></li><li data-type='method'><a href="wsemi.html#.downloadFileFromText">downloadFileFromText</a></li><li data-type='method'><a href="wsemi.html#.downloadFileFromU8Arr">downloadFileFromU8Arr</a></li><li data-type='method'><a href="wsemi.html#.dtmapping">dtmapping</a></li><li data-type='method'><a href="wsemi.html#.dtpick">dtpick</a></li><li data-type='method'><a href="wsemi.html#.evem">evem</a></li><li data-type='method'><a href="wsemi.html#.execProcess">execProcess</a></li><li data-type='method'><a href="wsemi.html#.execScript">execScript</a></li><li data-type='method'><a href="wsemi.html#.f2c">f2c</a></li><li data-type='method'><a href="wsemi.html#.filepathToTree">filepathToTree</a></li><li data-type='method'><a href="wsemi.html#.files2data">files2data</a></li><li data-type='method'><a href="wsemi.html#.flattenToConn">flattenToConn</a></li><li data-type='method'><a href="wsemi.html#.flattenTree">flattenTree</a></li><li data-type='method'><a href="wsemi.html#.fsCleanFolder">fsCleanFolder</a></li><li data-type='method'><a href="wsemi.html#.fsCopyFolder">fsCopyFolder</a></li><li data-type='method'><a href="wsemi.html#.fsCreateFile">fsCreateFile</a></li><li data-type='method'><a href="wsemi.html#.fsCreateFolder">fsCreateFolder</a></li><li data-type='method'><a href="wsemi.html#.fsDeleteFile">fsDeleteFile</a></li><li data-type='method'><a href="wsemi.html#.fsDeleteFolder">fsDeleteFolder</a></li><li data-type='method'><a href="wsemi.html#.fsEvem">fsEvem</a></li><li data-type='method'><a href="wsemi.html#.fsGetFilesInFolder">fsGetFilesInFolder</a></li><li data-type='method'><a href="wsemi.html#.fsGetFoldersInFolder">fsGetFoldersInFolder</a></li><li data-type='method'><a href="wsemi.html#.fsIsFile">fsIsFile</a></li><li data-type='method'><a href="wsemi.html#.fsIsFolder">fsIsFolder</a></li><li data-type='method'><a href="wsemi.html#.fsReadText">fsReadText</a></li><li data-type='method'><a href="wsemi.html#.fsRenameFile">fsRenameFile</a></li><li data-type='method'><a href="wsemi.html#.fsRenameFolder">fsRenameFolder</a></li><li data-type='method'><a href="wsemi.html#.fsTreeFolder">fsTreeFolder</a></li><li data-type='method'><a href="wsemi.html#.fsWatchFile">fsWatchFile</a></li><li data-type='method'><a href="wsemi.html#.fsWriteText">fsWriteText</a></li><li data-type='method'><a href="wsemi.html#.genGradientColor">genGradientColor</a></li><li data-type='method'><a href="wsemi.html#.genID">genID</a></li><li data-type='method'><a href="wsemi.html#.genPm">genPm</a></li><li data-type='method'><a href="wsemi.html#.getBufferSize">getBufferSize</a></li><li data-type='method'><a href="wsemi.html#.getClearPathName">getClearPathName</a></li><li data-type='method'><a href="wsemi.html#.getCsvStrFromData">getCsvStrFromData</a></li><li data-type='method'><a href="wsemi.html#.getDataFromExcelFileU8Arr">getDataFromExcelFileU8Arr</a></li><li data-type='method'><a href="wsemi.html#.getDataFromExcelFileU8ArrDyn">getDataFromExcelFileU8ArrDyn</a></li><li data-type='method'><a href="wsemi.html#.getDirName">getDirName</a></li><li data-type='method'><a href="wsemi.html#.getEnv">getEnv</a></li><li data-type='method'><a href="wsemi.html#.getExcelU8ArrFromData">getExcelU8ArrFromData</a></li><li data-type='method'><a href="wsemi.html#.getExcelU8ArrFromWorkbook">getExcelU8ArrFromWorkbook</a></li><li data-type='method'><a href="wsemi.html#.getExcelWorkbookFromData">getExcelWorkbookFromData</a></li><li data-type='method'><a href="wsemi.html#.getExcelWorkbookFromWorksheet">getExcelWorkbookFromWorksheet</a></li><li data-type='method'><a href="wsemi.html#.getExcelWorksheetFromData">getExcelWorksheetFromData</a></li><li data-type='method'><a href="wsemi.html#.getFileAccept">getFileAccept</a></li><li data-type='method'><a href="wsemi.html#.getFileName">getFileName</a></li><li data-type='method'><a href="wsemi.html#.getFileTrueName">getFileTrueName</a></li><li data-type='method'><a href="wsemi.html#.getGlobal">getGlobal</a></li><li data-type='method'><a href="wsemi.html#.getObjSize">getObjSize</a></li><li data-type='method'><a href="wsemi.html#.getTimeBetween">getTimeBetween</a></li><li data-type='method'><a href="wsemi.html#.getTimeFromUnit">getTimeFromUnit</a></li><li data-type='method'><a href="wsemi.html#.getTimeObject">getTimeObject</a></li><li data-type='method'><a href="wsemi.html#.getTimeRange">getTimeRange</a></li><li data-type='method'><a href="wsemi.html#.getUserAgent">getUserAgent</a></li><li data-type='method'><a href="wsemi.html#.getUserAgentDyn">getUserAgentDyn</a></li><li data-type='method'><a href="wsemi.html#.getltdtkeys">getltdtkeys</a></li><li data-type='method'><a href="wsemi.html#.haskey">haskey</a></li><li data-type='method'><a href="wsemi.html#.html2pic">html2pic</a></li><li data-type='method'><a href="wsemi.html#.html2picDyn">html2picDyn</a></li><li data-type='method'><a href="wsemi.html#.html2str">html2str</a></li><li data-type='method'><a href="wsemi.html#.html2strDyn">html2strDyn</a></li><li data-type='method'><a href="wsemi.html#.htmlDecode">htmlDecode</a></li><li data-type='method'><a href="wsemi.html#.htmlEncode">htmlEncode</a></li><li data-type='method'><a href="wsemi.html#.importResources">importResources</a></li><li data-type='method'><a href="wsemi.html#.interp1">interp1</a></li><li data-type='method'><a href="wsemi.html#.isDev">isDev</a></li><li data-type='method'><a href="wsemi.html#.isEle">isEle</a></li><li data-type='method'><a href="wsemi.html#.isEleExistByID">isEleExistByID</a></li><li data-type='method'><a href="wsemi.html#.isEmail">isEmail</a></li><li data-type='method'><a href="wsemi.html#.isIE">isIE</a></li><li data-type='method'><a href="wsemi.html#.isNarrow">isNarrow</a></li><li data-type='method'><a href="wsemi.html#.isStrHasCapital">isStrHasCapital</a></li><li data-type='method'><a href="wsemi.html#.isStrHasLowerCase">isStrHasLowerCase</a></li><li data-type='method'><a href="wsemi.html#.isStrHasNumber">isStrHasNumber</a></li><li data-type='method'><a href="wsemi.html#.isUserIdentify">isUserIdentify</a></li><li data-type='method'><a href="wsemi.html#.isUserName">isUserName</a></li><li data-type='method'><a href="wsemi.html#.isUserPW">isUserPW</a></li><li data-type='method'><a href="wsemi.html#.isWindow">isWindow</a></li><li data-type='method'><a href="wsemi.html#.isab">isab</a></li><li data-type='method'><a href="wsemi.html#.isarr">isarr</a></li><li data-type='method'><a href="wsemi.html#.isarr0">isarr0</a></li><li data-type='method'><a href="wsemi.html#.isblob">isblob</a></li><li data-type='method'><a href="wsemi.html#.isbol">isbol</a></li><li data-type='method'><a href="wsemi.html#.isday">isday</a></li><li data-type='method'><a href="wsemi.html#.isearr">isearr</a></li><li data-type='method'><a href="wsemi.html#.iseobj">iseobj</a></li><li data-type='method'><a href="wsemi.html#.iser">iser</a></li><li data-type='method'><a href="wsemi.html#.isernot">isernot</a></li><li data-type='method'><a href="wsemi.html#.isestr">isestr</a></li><li data-type='method'><a href="wsemi.html#.isfun">isfun</a></li><li data-type='method'><a href="wsemi.html#.isint">isint</a></li><li data-type='method'><a href="wsemi.html#.ismonth">ismonth</a></li><li data-type='method'><a href="wsemi.html#.isn0int">isn0int</a></li><li data-type='method'><a href="wsemi.html#.isn0num">isn0num</a></li><li data-type='method'><a href="wsemi.html#.isnbr">isnbr</a></li><li data-type='method'><a href="wsemi.html#.isnint">isnint</a></li><li data-type='method'><a href="wsemi.html#.isnnum">isnnum</a></li><li data-type='method'><a href="wsemi.html#.isnull">isnull</a></li><li data-type='method'><a href="wsemi.html#.isnum">isnum</a></li><li data-type='method'><a href="wsemi.html#.isobj">isobj</a></li><li data-type='method'><a href="wsemi.html#.isobj0">isobj0</a></li><li data-type='method'><a href="wsemi.html#.isp0int">isp0int</a></li><li data-type='method'><a href="wsemi.html#.isp0num">isp0num</a></li><li data-type='method'><a href="wsemi.html#.ispint">ispint</a></li><li data-type='method'><a href="wsemi.html#.ispm">ispm</a></li><li data-type='method'><a href="wsemi.html#.ispnum">ispnum</a></li><li data-type='method'><a href="wsemi.html#.isstr">isstr</a></li><li data-type='method'><a href="wsemi.html#.isstr0">isstr0</a></li><li data-type='method'><a href="wsemi.html#.istime">istime</a></li><li data-type='method'><a href="wsemi.html#.istimeTZ">istimeTZ</a></li><li data-type='method'><a href="wsemi.html#.istimems">istimems</a></li><li data-type='method'><a href="wsemi.html#.istimemsTZ">istimemsTZ</a></li><li data-type='method'><a href="wsemi.html#.isu16arr">isu16arr</a></li><li data-type='method'><a href="wsemi.html#.isu8arr">isu8arr</a></li><li data-type='method'><a href="wsemi.html#.isundefined">isundefined</a></li><li data-type='method'><a href="wsemi.html#.j2o">j2o</a></li><li data-type='method'><a href="wsemi.html#.keysmat2ltdt">keysmat2ltdt</a></li><li data-type='method'><a href="wsemi.html#.log">log</a></li><li data-type='method'><a href="wsemi.html#.ltdt2vrtsable">ltdt2vrtsable</a></li><li data-type='method'><a href="wsemi.html#.ltdtDiff">ltdtDiff</a></li><li data-type='method'><a href="wsemi.html#.ltdtDiffByKey">ltdtDiffByKey</a></li><li data-type='method'><a href="wsemi.html#.ltdtkeys2mat">ltdtkeys2mat</a></li><li data-type='method'><a href="wsemi.html#.ltdtkeysheads2mat">ltdtkeysheads2mat</a></li><li data-type='method'><a href="wsemi.html#.ltdtmapping">ltdtmapping</a></li><li data-type='method'><a href="wsemi.html#.ltdtmerge">ltdtmerge</a></li><li data-type='method'><a href="wsemi.html#.ltdtpick">ltdtpick</a></li><li data-type='method'><a href="wsemi.html#.ltdtpull">ltdtpull</a></li><li data-type='method'><a href="wsemi.html#.mat2ltdt">mat2ltdt</a></li><li data-type='method'><a href="wsemi.html#.matConcat">matConcat</a></li><li data-type='method'><a href="wsemi.html#.matDiff">matDiff</a></li><li data-type='method'><a href="wsemi.html#.matat">matat</a></li><li data-type='method'><a 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<h1 class="page-title">composeToTree.mjs</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>import get from 'lodash/get'
import each from 'lodash/each'
import set from 'lodash/set'
import cloneDeep from 'lodash/cloneDeep'
import omit from 'lodash/omit'
import isestr from './isestr.mjs'
import isearr from './isearr.mjs'
import isbol from './isbol.mjs'
import iser from './iser.mjs'
/**
* 組合關聯陣列成為樹狀陣列
*
* Unit Test: {@link https://github.com/yuda-lyu/wsemi/blob/master/test/composeToTree.test.mjs Github}
* @memberOf wsemi
* @param {Array} items 輸入關聯陣列
* @param {Object} [opt={}] 輸入設定物件，預設{}
* @param {String} [bindKey='id'] 輸入項目物件識別用欄位字串，預設'id'
* @param {String} [bindParent='parentId'] 輸入項目物件內存放父節點欄位字串，預設'parentId'
* @param {String} [bindChildren='children'] 輸入產生樹狀物件時，各節點內存放子節點欄位字串，預設'children'
* @param {Boolean} [saveExtProps=false] 輸入是否儲存項目物件從屬資訊布林值，預設false
* @returns {Array} 回傳樹狀陣列
* @example
*
* let data = [
* {
* id: 1,
* text: '1-a',
* },
* {
* id: 2,
* text: '2-b',
* },
* {
* id: 3,
* text: '3-c',
* parentId: 2,
* },
* {
* id: 4,
* text: '4-d',
* parentId: 2,
* },
* {
* id: 5,
* text: '5-e',
* parentId: 3,
* },
* {
* id: 6,
* text: 'empty',
* },
* ]
* let r = composeToTree(data)
* let cr = JSON.stringify(r)
* console.log(cr)
* // => [
* // {
* // "id": 1,
* // "text": "1-a"
* // },
* // {
* // "id": 2,
* // "text": "2-b",
* // "children": [
* // {
* // "id": 3,
* // "text": "3-c",
* // "parentId": 2,
* // "children": [
* // {
* // "id": 5,
* // "text": "5-e",
* // "parentId": 3
* // }
* // ]
* // },
* // {
* // "id": 4,
* // "text": "4-d",
* // "parentId": 2
* // }
* // ]
* // },
* // {
* // "id": 6,
* // "text": "empty"
* // }
* // ]
*
*/
function composeToTree(items, opt = {}) {
let privateLevel = '$level'
let privateParents = '$parents'
//check
if (!isearr(items)) {
return []
}
//bindKey
let bindKey = get(opt, 'bindKey', null)
if (!isestr(bindKey)) {
bindKey = 'id'
}
//bindParent
let bindParent = get(opt, 'bindParent', null)
if (!isestr(bindParent)) {
bindParent = 'parentId'
}
//bindChildren
let bindChildren = get(opt, 'bindChildren', null)
if (!isestr(bindChildren)) {
bindChildren = 'children'
}
//saveExtProps
let saveExtProps = get(opt, 'saveExtProps', null)
if (!isbol(saveExtProps)) {
saveExtProps = false
}
function addNodeLevel(items) {
let r = []
//cloneDeep
items = cloneDeep(items)
function addNodeForTop() {
let _items = []
each(items, (v, k) => {
if (iser(v[bindParent])) {
//若不存在bindParent就代表頂層, 加入至r
r.push({
[privateLevel]: 0,
[privateParents]: [],
...v,
})
}
else {
//非頂層項目物件, 加入至_items
_items.push(v)
}
})
// console.log('_items a', _items)
// console.log('r a', r)
//re-save
items = _items
}
function addNodeInParent(p) {
let _items = []
each(items, (v, k) => {
let vbp = get(v, bindParent)
let pbk = get(p, bindKey)
if (vbp && pbk && (vbp === pbk)) {
//若非頂層項目物件v的bindParent, 等於所傳入的父層物件p的bindKey, 就代表找到從屬, 加入至r
//parentIDs
let parentIDs = get(p, privateParents, [])
parentIDs = cloneDeep(parentIDs)
parentIDs.push(p[bindKey])
//push
r.push({
[privateLevel]: p[privateLevel] + 1, //level加1
[privateParents]: parentIDs, //儲存父層節點的bindKey
...v,
})
}
else {
//非頂層項目物件v非隸屬於父層物件p, 加入至_items
_items.push(v)
}
})
// console.log('_items b', _items)
// console.log('r b', r)
//re-save
items = _items
}
//addNodeForTop
addNodeForTop()
//check
if (r.length === 0) {
return r
}
//建立非頂層節點關聯
let i = -1
while (true) {
i += 1
//check, 存取超過陣列長度
if (i > r.length - 1) {
break
}
//p
let p = r[i]
//addNodeInParent
addNodeInParent(p)
//check, 若已無非頂層物件則跳出
if (items.length === 0) {
break
}
}
return r
}
function buildTree(items) {
let r = []
function findParent(v) {
for (let i = 0; i < items.length; i++) {
let p = items[i]
if (v[bindParent] === p[bindKey]) {
return p
}
}
return null
}
function omitProps(v) {
if (saveExtProps) {
return v
}
return omit(v, [privateLevel, privateParents])
}
//填入子節點至keyChildren欄位
let kp = {}
each(items, (v, k) => { //r為依照層級高低循序建立
if (v[privateLevel] === 0) {
//omitProps
let omv = omitProps(v)
//push
r.push(omv)
//save kp
kp[v[bindKey]] = [k] //頂層節點之指標k為keys內容
// console.log(k, 'r', cloneDeep(r))
}
else {
// console.log(k, 'v', cloneDeep(v))
//findParent
let p = findParent(v)
// console.log(k, 'p', cloneDeep(p))
//check, 找得到父層節點才處理
if (p !== null) {
//keys
let keys = kp[p[bindKey]]
keys = [...keys, bindChildren]
// console.log(k, 'keys', cloneDeep(keys))
let cs = get(r, keys, [])
// console.log(k, 'cs1', cloneDeep(cs))
//omitProps
let omv = omitProps(v)
//push
cs.push(omv)
//save kp
kp[v[bindKey]] = [...keys, cs.length - 1]
// console.log(k, 'cs2', cloneDeep(cs))
//set
set(r, keys, cs)
// console.log(k, 'r', cloneDeep(r))
}
else {
console.log(`can not find parent for ${get(v, bindParent)}`)
}
}
})
return r
}
//addNodeLevel
items = addNodeLevel(items)
//buildTree
let r = buildTree(items)
return r
}
export default composeToTree
</code></pre>
</article>
</section>
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