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✨ Add utility functions and snippets to javascript.json #36

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✏️ Fix spelling mistake in description and update filterObject functi... 
...on to handle null and undefined values
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realvishalrana committed Dec 30, 2024
commit 01c2c83eabe54419e58325f6a8d5db93b887092f
18 changes: 13 additions & 5 deletions public/data/javascript.json
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -121,18 +121,26 @@
"snippets": [
{
"title": "Filter Object",
"description": "Filters out entries in an object where the value is falsy.",
"description": "Filter out entries in an object where the value is falsy, including empty strings, empty objects, null, and undefined.",
"code": [
"export const filterObject = (object = {}) =>",
" Object.fromEntries(",
" Object.entries(object)",
" .map(([key, value]) => value && [key, value])",
" .filter((item) => item),",
" .filter(([key, value]) => value !== null && value !== undefined && value !== '' && (typeof value !== 'object' || Object.keys(value).length > 0))",
" );",
"",
"// Usage:",
"const obj = { a: 1, b: null, c: undefined, d: 4 };",
"console.log(filterObject(obj)); // Output: { a: 1, d: 4 }"
"const obj1 = { a: 1, b: null, c: undefined, d: 4, e: '', f: {} };",
"console.log(filterObject(obj1)); // Output: { a: 1, d: 4 }",
"",
"const obj2 = { x: 0, y: false, z: 'Hello', w: [] };",
"console.log(filterObject(obj2)); // Output: { z: 'Hello' }",
"",
"const obj3 = { name: 'John', age: null, address: { city: 'New York' }, phone: '' };",
"console.log(filterObject(obj3)); // Output: { name: 'John', address: { city: 'New York' } }",
"",
"const obj4 = { a: 0, b: '', c: false, d: {}, e: 'Valid' };",
"console.log(filterObject(obj4)); // Output: { e: 'Valid' }"
],
"tags": ["javascript", "object", "filter", "utility"],
"author": "realvishalrana"
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