@ctrl/ngx-csv
Version:
Easily generate a CSV download in the browser with Angular
53 lines • 10.9 kB
JavaScript
export const isJsons = (array) => Array.isArray(array) &&
array.every(row => typeof row === 'object' && !(row instanceof Array));
export const isArrays = (array) => Array.isArray(array) && array.every(row => Array.isArray(row));
export function jsonsHeaders(array) {
return Array.from(new Set(array.map(item => Object.keys(item)).reduce((a, b) => [...a, ...b], [])));
}
export function jsons2arrays(jsons, headers) {
headers = headers || jsonsHeaders(jsons);
// allow headers to have custom labels, defaulting to having the header data key be the label
let headerLabels = headers;
let headerKeys = headers;
if (isJsons(headers)) {
headerLabels = headers.map(header => header.label);
headerKeys = headers.map(header => header.key);
}
const data = jsons.map(object => headerKeys.map(header => (header in object ? object[header] : '')));
return [headerLabels, ...data];
}
export const elementOrEmpty = (element) => element || element === 0 ? element : '';
export function joiner(data, delimiter = ',') {
return data
.map((row, index) => row.map((element) => '"' + elementOrEmpty(element) + '"').join(delimiter))
.join(`\n`);
}
export function arrays2csv(data, headers, delimiter) {
return joiner(headers ? [headers, ...data] : data, delimiter);
}
export function jsons2csv(data, headers, delimiter) {
return joiner(jsons2arrays(data, headers), delimiter);
}
export function string2csv(data, headers, delimiter) {
return headers ? `${headers.join(delimiter)}\n${data}` : data;
}
export function toCSV(data, headers, delimiter) {
if (isJsons(data)) {
return jsons2csv(data, headers, delimiter);
}
if (isArrays(data)) {
return arrays2csv(data, headers, delimiter);
}
if (typeof data === 'string') {
return string2csv(data, headers, delimiter);
}
throw new TypeError(`Data should be a "String", "Array of arrays" OR "Array of objects" `);
}
export function blob(data, uFEFF = true, headers, delimiter) {
const csv = toCSV(data, headers, delimiter);
return new Blob([uFEFF ? '\uFEFF' : '', csv], { type: 'text/csv' });
}
export function buildURI(data, uFEFF = true, headers, delimiter) {
return URL.createObjectURL(blob(data, uFEFF, headers, delimiter));
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"util.js","sourceRoot":"","sources":["../../src/lib/util.ts"],"names":[],"mappings":"AAMA,MAAM,CAAC,MAAM,OAAO,GAAG,CAAC,KAAY,EAAE,EAAE,CACtC,KAAK,CAAC,OAAO,CAAC,KAAK,CAAC;IACpB,KAAK,CAAC,KAAK,CAAC,GAAG,CAAC,EAAE,CAAC,OAAO,GAAG,KAAK,QAAQ,IAAI,CAAC,CAAC,GAAG,YAAY,KAAK,CAAC,CAAC,CAAC;AAEzE,MAAM,CAAC,MAAM,QAAQ,GAAG,CAAC,KAAY,EAAE,EAAE,CACvC,KAAK,CAAC,OAAO,CAAC,KAAK,CAAC,IAAI,KAAK,CAAC,KAAK,CAAC,GAAG,CAAC,EAAE,CAAC,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,CAAC,CAAC;AAEjE,MAAM,UAAU,YAAY,CAAC,KAAe;IAC1C,OAAO,KAAK,CAAC,IAAI,CACf,IAAI,GAAG,CACL,KAAK,CAAC,GAAG,CAAC,IAAI,CAAC,EAAE,CAAC,MAAM,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE,CAAC,CAAC,GAAG,CAAC,EAAE,GAAG,CAAC,CAAC,EAAE,EAAE,CAAC,CACxE,CACF,CAAC;AACJ,CAAC;AAED,MAAM,UAAU,YAAY,CAC1B,KAAkC,EAClC,OAAgC;IAEhC,OAAO,GAAG,OAAO,IAAI,YAAY,CAAC,KAAK,CAAC,CAAC;IAEzC,6FAA6F;IAC7F,IAAI,YAAY,GAAa,OAAmB,CAAC;IACjD,IAAI,UAAU,GAAa,OAAmB,CAAC;IAC/C,IAAI,OAAO,CAAC,OAAO,CAAC,EAAE;QACpB,YAAY,GAAI,OAAuB,CAAC,GAAG,CAAC,MAAM,CAAC,EAAE,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC;QACpE,UAAU,GAAI,OAAuB,CAAC,GAAG,CAAC,MAAM,CAAC,EAAE,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC;KACjE;IAED,MAAM,IAAI,GAAG,KAAK,CAAC,GAAG,CAAC,MAAM,CAAC,EAAE,CAC9B,UAAU,CAAC,GAAG,CAAC,MAAM,CAAC,EAAE,CAAC,CAAC,MAAM,IAAI,MAAM,CAAC,CAAC,CAAC,MAAM,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CACnE,CAAC;IACF,OAAO,CAAC,YAAY,EAAE,GAAG,IAAI,CAAC,CAAC;AACjC,CAAC;AAED,MAAM,CAAC,MAAM,cAAc,GAAG,CAAC,OAAY,EAAE,EAAE,CAC7C,OAAO,IAAI,OAAO,KAAK,CAAC,CAAC,CAAC,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE,CAAC;AAE1C,MAAM,UAAU,MAAM,CAAC,IAAS,EAAE,SAAS,GAAG,GAAG;IAC/C,OAAO,IAAI;SACR,GAAG,CAAC,CAAC,GAAQ,EAAE,KAAa,EAAE,EAAE,CAC/B,GAAG,CAAC,GAAG,CAAC,CAAC,OAAY,EAAE,EAAE,CAAC,GAAG,GAAG,cAAc,CAAC,OAAO,CAAC,GAAG,GAAG,CAAC,CAAC,IAAI,CAAC,SAAS,CAAC,CAC/E;SACA,IAAI,CAAC,IAAI,CAAC,CAAC;AAChB,CAAC;AAED,MAAM,UAAU,UAAU,CACxB,IAAgB,EAChB,OAAgC,EAChC,SAAkB;IAElB,OAAO,MAAM,CAAC,OAAO,CAAC,CAAC,CAAC,CAAC,OAAO,EAAE,GAAG,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,EAAE,SAAS,CAAC,CAAC;AAChE,CAAC;AAED,MAAM,UAAU,SAAS,CACvB,IAAiC,EACjC,OAAgC,EAChC,SAAkB;IAElB,OAAO,MAAM,CAAC,YAAY,CAAC,IAAI,EAAE,OAAO,CAAC,EAAE,SAAS,CAAC,CAAC;AACxD,CAAC;AAED,MAAM,UAAU,UAAU,CACxB,IAAY,EACZ,OAAkB,EAClB,SAAkB;IAElB,OAAO,OAAO,CAAC,CAAC,CAAC,GAAG,OAAO,CAAC,IAAI,CAAC,SAAS,CAAC,KAAK,IAAI,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC;AAChE,CAAC;AAED,MAAM,UAAU,KAAK,CACnB,IAA+D,EAC/D,OAAgC,EAChC,SAAkB;IAElB,IAAI,OAAO,CAAC,IAAW,CAAC,EAAE;QACxB,OAAO,SAAS,CAAC,IAAmC,EAAE,OAAO,EAAE,SAAS,CAAC,CAAC;KAC3E;IACD,IAAI,QAAQ,CAAC,IAAW,CAAC,EAAE;QACzB,OAAO,UAAU,CAAC,IAAkB,EAAE,OAAO,EAAE,SAAS,CAAC,CAAC;KAC3D;IACD,IAAI,OAAO,IAAI,KAAK,QAAQ,EAAE;QAC5B,OAAO,UAAU,CAAC,IAAI,EAAE,OAAmB,EAAE,SAAS,CAAC,CAAC;KACzD;IACD,MAAM,IAAI,SAAS,CACjB,qEAAqE,CACtE,CAAC;AACJ,CAAC;AAED,MAAM,UAAU,IAAI,CAClB,IAA+D,EAC/D,KAAK,GAAG,IAAI,EACZ,OAAgC,EAChC,SAAkB;IAElB,MAAM,GAAG,GAAG,KAAK,CAAC,IAAI,EAAE,OAAO,EAAE,SAAS,CAAC,CAAC;IAC5C,OAAO,IAAI,IAAI,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,EAAE,EAAE,GAAG,CAAC,EAAE,EAAE,IAAI,EAAE,UAAU,EAAE,CAAC,CAAC;AACtE,CAAC;AAED,MAAM,UAAU,QAAQ,CACtB,IAA+D,EAC/D,KAAK,GAAG,IAAI,EACZ,OAAgC,EAChC,SAAkB;IAElB,OAAO,GAAG,CAAC,eAAe,CAAC,IAAI,CAAC,IAAI,EAAE,KAAK,EAAE,OAAO,EAAE,SAAS,CAAC,CAAC,CAAC;AACpE,CAAC","sourcesContent":["/* eslint-disable prefer-arrow/prefer-arrow-functions */\nexport interface HeaderObj {\n  label: string;\n  key: string;\n}\n\nexport const isJsons = (array: any[]) =>\n  Array.isArray(array) &&\n  array.every(row => typeof row === 'object' && !(row instanceof Array));\n\nexport const isArrays = (array: any[]) =>\n  Array.isArray(array) && array.every(row => Array.isArray(row));\n\nexport function jsonsHeaders(array: object[]) {\n  return Array.from(\n    new Set(\n      array.map(item => Object.keys(item)).reduce((a, b) => [...a, ...b], []),\n    ),\n  );\n}\n\nexport function jsons2arrays(\n  jsons: { [key: string]: string }[],\n  headers?: string[] | HeaderObj[],\n) {\n  headers = headers || jsonsHeaders(jsons);\n\n  // allow headers to have custom labels, defaulting to having the header data key be the label\n  let headerLabels: string[] = headers as string[];\n  let headerKeys: string[] = headers as string[];\n  if (isJsons(headers)) {\n    headerLabels = (headers as HeaderObj[]).map(header => header.label);\n    headerKeys = (headers as HeaderObj[]).map(header => header.key);\n  }\n\n  const data = jsons.map(object =>\n    headerKeys.map(header => (header in object ? object[header] : '')),\n  );\n  return [headerLabels, ...data];\n}\n\nexport const elementOrEmpty = (element: any) =>\n  element || element === 0 ? element : '';\n\nexport function joiner(data: any, delimiter = ',') {\n  return data\n    .map((row: any, index: number) =>\n      row.map((element: any) => '\"' + elementOrEmpty(element) + '\"').join(delimiter),\n    )\n    .join(`\\n`);\n}\n\nexport function arrays2csv(\n  data: string[][],\n  headers?: string[] | HeaderObj[],\n  delimiter?: string,\n) {\n  return joiner(headers ? [headers, ...data] : data, delimiter);\n}\n\nexport function jsons2csv(\n  data: { [key: string]: string }[],\n  headers?: string[] | HeaderObj[],\n  delimiter?: string,\n) {\n  return joiner(jsons2arrays(data, headers), delimiter);\n}\n\nexport function string2csv(\n  data: string,\n  headers?: string[],\n  delimiter?: string,\n) {\n  return headers ? `${headers.join(delimiter)}\\n${data}` : data;\n}\n\nexport function toCSV(\n  data: string | string[][] | { [key: string]: string }[] | any[],\n  headers?: string[] | HeaderObj[],\n  delimiter?: string,\n) {\n  if (isJsons(data as any)) {\n    return jsons2csv(data as { [key: string]: string }[], headers, delimiter);\n  }\n  if (isArrays(data as any)) {\n    return arrays2csv(data as string[][], headers, delimiter);\n  }\n  if (typeof data === 'string') {\n    return string2csv(data, headers as string[], delimiter);\n  }\n  throw new TypeError(\n    `Data should be a \"String\", \"Array of arrays\" OR \"Array of objects\" `,\n  );\n}\n\nexport function blob(\n  data: string | string[][] | { [key: string]: string }[] | any[],\n  uFEFF = true,\n  headers?: string[] | HeaderObj[],\n  delimiter?: string,\n) {\n  const csv = toCSV(data, headers, delimiter);\n  return new Blob([uFEFF ? '\\uFEFF' : '', csv], { type: 'text/csv' });\n}\n\nexport function buildURI(\n  data: string | string[][] | { [key: string]: string }[] | any[],\n  uFEFF = true,\n  headers?: string[] | HeaderObj[],\n  delimiter?: string,\n) {\n  return URL.createObjectURL(blob(data, uFEFF, headers, delimiter));\n}\n"]}