ztimson/utils
ztimson/utils
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improved toCSV
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This commit is contained in:
Zakary Timson 2024-11-09 13:49:04 -05:00
parent ce2f32dd45
commit 2f59a9d02e
4 changed files with 14 additions and 20 deletions
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4
index.html
View File

@ -6,9 +6,9 @@
</head>
<body>
<script type="module">
import {PathEvent} from './dist/index.mjs';
import {toCsv} from './dist/index.mjs';
console.log(PathEvent.has(['data/Inventory:n', 'logs:c'], `logs/client:n`));
console.log(toCsv([{test:123, test2: {test: [1, 2, 3, 4], test3: true, test4: 'okay'}}]));
</script>
</body>
</html>

2
package.json
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@ -1,6 +1,6 @@
{
"name": "@ztimson/utils",
"version": "0.22.2",
"version": "0.22.3",
"description": "Utility library",
"author": "Zak Timson",
"license": "MIT",

16
src/csv.ts
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@ -1,4 +1,5 @@
import {dotNotation, flattenObj} from './objects.ts';
import {ASet} from './aset.ts';
import {dotNotation, flattenObj, JSONAttemptParse, JSONSanitize} from './objects.ts';
/**
* Convert an object to a CSV string
@ -7,20 +8,13 @@ import {dotNotation, flattenObj} from './objects.ts';
* @param {boolean} flatten Should nested object be flattened or treated as values
* @return {string} CSV string
*/
export function csv(target: any[], flatten=true) {
const headers = target.reduce((acc, row) => {
Object.keys(flatten ? flattenObj(row) : row)
.forEach(key => { if(!acc.includes(key)) acc.push(key); });
return acc;
}, []);
export function toCsv(target: any[], flatten=true) {
const headers = new ASet(target.reduce((acc, row) => [...acc, ...Object.keys(flatten ? flattenObj(row) : row)], []));
return [
headers.join(','),
...target.map(row => headers.map((h: string) => {
const value = dotNotation<any>(row, h);
const type = typeof value;
if(type == 'string' && value.includes(',')) return `"${value}"`;
if(type == 'object') return `"${JSON.stringify(value)}"`;
return value;
return (typeof value == 'object' && value != null) ? '"' + JSONSanitize(value).replaceAll('"', '""') + '"' : value;
}).join(','))
].join('\n');
}

12
src/objects.ts
View File

@ -91,7 +91,6 @@ export function dotNotation<T>(obj: any, prop: string, set?: T): T | undefined {
}, obj);
}
/**
* Convert object into URL encoded query string
*
@ -128,8 +127,9 @@ export function encodeQuery(data: any): string {
export function flattenObj(obj: any, parent?: any, result: any = {}) {
if(typeof obj === "object" && !Array.isArray(obj)) {
for(const key of Object.keys(obj)) {
const propName = parent ? parent + '.' + key : key;
if(typeof obj[key] === 'object') {
const propName = parent ? `${parent}.${key}` : key;
if(typeof obj[key] === 'object' && obj[key] != null && !Array.isArray(obj[key])) {
console.log(propName, );
flattenObj(obj[key], propName, result);
} else {
result[propName] = obj[key];
@ -216,11 +216,11 @@ export function mixin(target: any, constructors: any[]) {
/**
* Parse JSON but return the original string if it fails
*
* @param {string} json JSON string to parse
* @param {any} json JSON string to parse
* @return {string | T} Object if successful, original string otherwise
*/
export function JSONAttemptParse<T>(json: string): T | string {
try { return JSON.parse(json); }
export function JSONAttemptParse<T1, T2>(json: T2): T1 | T2 {
try { return JSON.parse(<any>json); }
catch { return json; }
}