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Articles tagged with #webdev
// File: useToggle.js import { useState } from "react"; const useToggle = (initialState = false) => { const [visible, setVisibility] = useState(initialState); const toggle = () => setVisibility((prev) => !prev); const setToggleStatus = (valu...
_.isEmpty(): Matches undefined, null, false & empty arrays, obj, strings const _ = require('lodash'); console.log( _.isEmpty(undefined), _.isEmpty(null), _.isEmpty(false) _.isEmpty([]), _.isEmpty({}), _.isEmpty(""), ); // true x 6
const asyncFunction = async () => "HELLO"; const main = async () => { const value = asyncFunction(); console.log(value === "HELLO" ? "true" : "false"); }; main(); Output: false asyncFunction() returns a promise not the resolved value.
snake_case kebab-case camelCase (JS variables, functions) PascalCase (JS Classes) SCREAMING_SNAKE_CASE (JS constants)
const pick = (obj = {}, keys = []) => { const result = {}; for (const key in obj) { if (keys.includes(key)) { result[key] = obj[key]; } } return result; }; const obj = { name: "Mehul", age: 27, email: "codedrops.tech@gma...
const getDayNameOrNo = (value) => { const mappings = [ [0, "sunday"], [1, "monday"], [2, "tuesday"], [3, "wednesday"], [4, "thursday"], [5, "friday"], [6, "saturday"], ]; const match = mappings.find( ([dayNo, na...