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Commit e33b0ad

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Merge pull request #36 from realvishalrana/feature/add-utility-functions-snippets
✨ Add utility functions and snippets to javascript.json
2 parents a56c576 + 01c2c83 commit e33b0ad

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‎public/data/javascript.json

Lines changed: 129 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -80,6 +80,106 @@
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],
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"tags": ["javascript", "string", "reverse", "utility"],
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"author": "dostonnabotov"
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},
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{
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"title": "Truncate Text",
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"description": "Truncates the text to a maximum length and appends '...' if the text exceeds the maximum length.",
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"code": [
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"const truncateText = (text = '', maxLength = 50) => {",
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" return `${text.slice(0, maxLength)}${text.length >= maxLength ? '...' : ''}`;",
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"};",
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"",
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"// Usage:",
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"const title = \"Hello, World! This is a Test.\";",
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"console.log(truncateText(title)); // Output: 'Hello, World! This is a Test.'",
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"console.log(truncateText(title, 10)); // Output: 'Hello, Wor...'"
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],
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"tags": ["javascript", "string", "truncate", "utility", "text"],
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"author": "realvishalrana"
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},
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{
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"title": "Data with Prefix",
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"description": "Adds a prefix and postfix to data, with a fallback value.",
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"code": [
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"const dataWithPrefix = (data, fallback = '-', prefix = '', postfix = '') => {",
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" return data ? `${prefix}${data}${postfix}` : fallback;",
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"};",
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"",
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"// Usage:",
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"console.log(dataWithPrefix('123', '-', '(', ')')); // Output: '(123)'",
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"console.log(dataWithPrefix('', '-', '(', ')')); // Output: '-'",
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"console.log(dataWithPrefix('Hello', 'N/A', 'Mr. ', '')); // Output: 'Mr. Hello'",
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"console.log(dataWithPrefix(null, 'N/A', 'Mr. ', '')); // Output: 'N/A'"
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],
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"tags": ["javascript", "data", "utility"],
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"author": "realvishalrana"
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}
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]
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},
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{
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"categoryName": "Object Manipulation",
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"snippets": [
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{
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"title": "Filter Object",
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"description": "Filter out entries in an object where the value is falsy, including empty strings, empty objects, null, and undefined.",
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"code": [
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"export const filterObject = (object = {}) =>",
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" Object.fromEntries(",
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" Object.entries(object)",
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" .filter(([key, value]) => value !== null && value !== undefined && value !== '' && (typeof value !== 'object' || Object.keys(value).length > 0))",
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" );",
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"",
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"// Usage:",
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"const obj1 = { a: 1, b: null, c: undefined, d: 4, e: '', f: {} };",
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"console.log(filterObject(obj1)); // Output: { a: 1, d: 4 }",
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"",
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"const obj2 = { x: 0, y: false, z: 'Hello', w: [] };",
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"console.log(filterObject(obj2)); // Output: { z: 'Hello' }",
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"",
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"const obj3 = { name: 'John', age: null, address: { city: 'New York' }, phone: '' };",
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"console.log(filterObject(obj3)); // Output: { name: 'John', address: { city: 'New York' } }",
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"",
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"const obj4 = { a: 0, b: '', c: false, d: {}, e: 'Valid' };",
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"console.log(filterObject(obj4)); // Output: { e: 'Valid' }"
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],
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"tags": ["javascript", "object", "filter", "utility"],
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"author": "realvishalrana"
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},
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{
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"title": "Get Nested Value",
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"description": "Retrieves the value at a given path in a nested object.",
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"code": [
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"const getNestedValue = (obj, path) => {",
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" const keys = path.split('.');",
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" return keys.reduce((currentObject, key) => {",
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" return currentObject && typeof currentObject === 'object' ? currentObject[key] : undefined;",
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" }, obj);",
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"};",
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"",
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"// Usage:",
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"const obj = { a: { b: { c: 42 } } };",
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"console.log(getNestedValue(obj, 'a.b.c')); // Output: 42"
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],
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"tags": ["javascript", "object", "nested", "utility"],
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"author": "realvishalrana"
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},
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{
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"title": "Unique By Key",
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"description": "Filters an array of objects to only include unique objects by a specified key.",
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"code": [
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"const uniqueByKey = (key, arr) =>",
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" arr.filter((obj, index, self) => index === self.findIndex((t) => t?.[key] === obj?.[key]));",
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"",
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"// Usage:",
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"const arr = [",
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" { id: 1, name: 'John' },",
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" { id: 2, name: 'Jane' },",
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" { id: 1, name: 'John' }",
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"];",
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"console.log(uniqueByKey('id', arr)); // Output: [{ id: 1, name: 'John' }, { id: 2, name: 'Jane' }]"
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],
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"tags": ["javascript", "array", "unique", "utility"],
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"author": "realvishalrana"
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}
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]
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},
@@ -313,5 +413,33 @@
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"author": "dostonnabotov"
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}
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]
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}
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},
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{
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"categoryName": "Number Formatting",
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"snippets": [
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{
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"title": "Number Formatter",
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"description": "Formats a number with suffixes (K, M, B, etc.).",
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"code": [
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"const nFormatter = (num) => {",
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" if (!num) return;",
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" num = parseFloat(num.toString().replace(/[^0-9.]/g, ''));",
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" const suffixes = ['', 'K', 'M', 'B', 'T', 'P', 'E'];",
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" let index = 0;",
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" while (num >= 1000 && index < suffixes.length - 1) {",
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" num /= 1000;",
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" index++;",
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" }",
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" return num.toFixed(2).replace(/\\.0+$|(\\.[0-9]*[1-9])0+$/, '1ドル') + suffixes[index];",
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"};",
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"",
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"// Usage:",
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"console.log(nFormatter(1234567)); // Output: '1.23M'"
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],
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"tags": ["javascript", "number", "format", "utility"],
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"author": "realvishalrana"
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}
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]
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}
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]

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