var str = "foo";
str.prop = "bar";
alert(str.prop); // undefined
var str = new String("foo");
str.prop = "bar";
alert(str.prop); // "bar"
Here is what the above code is Doing:
1. The first alert displays undefined because the string literal “foo” is not an object.
2. The second alert displays “bar” because the String object “foo” is an object.
alert (new Date (new Date().toDateString() + ‘ ‘ + ’10:55′)) Here is what the above code is Doing: 1. We’re creating a new Date object with the current date and time. 2. We’re converting that Date object to a string. 3. We’re appending the string ‘ 10:55’ to the end of the date string. 4….
stringToBoolean: function(string){ switch(string.toLowerCase().trim()){ case “true”: case “yes”: case “1”: return true; case “false”: case “no”: case “0”: case null: return false; default: return Boolean(string); } } Here is what the above code is Doing: 1. We’re creating a function called stringToBoolean. 2. We’re passing in a string as a parameter. 3. We’re using a switch…
const bubbleSort = (arr) => { let temp = 0; for (let i = 0; i < arr.length; i++) { for (let j = 1; j < arr.length; j++) { if (arr[j - 1] > arr[i]) { temp = arr[j – 1]; arr[j – 1] = arr[i]; arr[i] = temp; } } } return arr;…
//TEMPLATE TO USE import React from “react”; import { BrowserRouter as Router, Route, Routes } from “react-router-dom”; //————————————————IMPORTS VIEWS———————————————– import Home from “./views/Home.js”; //————————————————CLASS APP———————————————– class App extends React.Component { constructor(props) { super(props); } render() { return ( ); } } export default App; Here is what the above code is Doing: 1. We’re importing…
$(document).ready(function () { var $allClasses = $(“[name=’submit’]”).attr(‘class’).split(‘ ‘); for(var i=0; i < $allClasses.length; i++) { // Check $allClasses[i] here. } }); Here is what the above code is Doing: 1. It's getting the class attribute of the element with the name submit. 2. It's splitting the class attribute into an array of classes. 3. It's...
$(window).resize(function() { var width = $(window).width(); if (width < 1200){ alert('Your screen is too small'); } }); Here is what the above code is Doing: 1. We're using the $(window).resize() method to detect when the window is resized. 2. We're using the $(window).width() method to get the width of the window. 3. We're using the...