@guramrit/ngx-filter-pipe
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Angular 5+ pipeline for filtering arrays
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{"version":3,"file":"guramrit-ngx-filter-pipe.mjs","sources":["../../src/app/shared/ngx-filter-pipe/ngx-filter.pipe.ts","../../src/app/shared/ngx-filter-pipe/ngx-filter.module.ts","../../guramrit-ngx-filter-pipe.ts"],"sourcesContent":["/**\n * Created by vadimdez on 28/06/16.\n */\nimport { Pipe, Injectable, PipeTransform } from '@angular/core';\n\n@Pipe({\n name: 'filterBy',\n pure: false\n})\n@Injectable()\nexport class FilterPipe implements PipeTransform {\n static isFoundOnWalking(value, key) {\n let walker = value;\n let found = false;\n do {\n if (\n walker.hasOwnProperty(key) ||\n Object.getOwnPropertyDescriptor(walker, key)\n ) {\n found = true;\n break;\n }\n } while ((walker = Object.getPrototypeOf(walker)));\n\n return found;\n }\n\n static isNumber(value) {\n return !isNaN(parseInt(value, 10)) && isFinite(value);\n }\n\n /**\n * Checks function's value if type is function otherwise same value\n */\n static getValue(value: any): any {\n return typeof value === 'function' ? value() : value;\n }\n\n private filterByString(filter) {\n if (filter) {\n filter = filter.toLowerCase();\n }\n return value =>\n !filter ||\n (value ? ('' + value).toLowerCase().indexOf(filter) !== -1 : false);\n }\n\n private filterByBoolean(filter) {\n return value => Boolean(value) === filter;\n }\n\n private filterByObject(filter) {\n return value => {\n for (const key in filter) {\n if (key === '$or') {\n if (!this.filterByOr(filter.$or)(FilterPipe.getValue(value))) {\n return false;\n }\n continue;\n }\n\n if (!value || !FilterPipe.isFoundOnWalking(value, key)) {\n return false;\n }\n\n if (!this.isMatching(filter[key], FilterPipe.getValue(value[key]))) {\n return false;\n }\n }\n\n return true;\n };\n }\n\n private isMatching(filter, val) {\n switch (typeof filter) {\n case 'boolean':\n return this.filterByBoolean(filter)(val);\n case 'string':\n return this.filterByString(filter)(val);\n case 'object':\n return this.filterByObject(filter)(val);\n }\n return this.filterDefault(filter)(val);\n }\n\n /**\n * Filter value by $or\n */\n private filterByOr(filter: any[]): (value: any) => boolean {\n return (value: any) => {\n const length = filter.length;\n\n const arrayComparison = i => value.indexOf(filter[i]) !== -1;\n const otherComparison = i => this.isMatching(filter[i], value);\n const comparison = Array.isArray(value)\n ? arrayComparison\n : otherComparison;\n\n for (let i = 0; i < length; i++) {\n if (comparison(i)) {\n return true;\n }\n }\n\n return false;\n };\n }\n\n /**\n * Default filterDefault function\n */\n private filterDefault(filter: any): (value: any) => boolean {\n return (value: any) => filter === undefined || filter == value;\n }\n\n transform(array: any[], filter: any): any {\n if (!array) {\n return array;\n }\n\n switch (typeof filter) {\n case 'boolean':\n return array.filter(this.filterByBoolean(filter));\n case 'string':\n if (FilterPipe.isNumber(filter)) {\n return array.filter(this.filterDefault(filter));\n }\n return array.filter(this.filterByString(filter));\n case 'object':\n return array.filter(this.filterByObject(filter));\n case 'function':\n return array.filter(filter);\n }\n return array.filter(this.filterDefault(filter));\n }\n}\n","/**\n * Created by vadimdez on 28/11/2016.\n */\nimport { NgModule } from '@angular/core';\nimport { FilterPipe } from './ngx-filter.pipe';\n\n@NgModule({\n declarations: [FilterPipe],\n providers: [FilterPipe],\n exports: [FilterPipe]\n})\nexport class FilterPipeModule {}\n","/**\n * Generated bundle index. 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