The while loop and the do/while loop will be explained in the next chapter.Test Yourself with Exercises!Exercise 1 » Exercise 2 » Exercise 3 » Exercise 4 » Exercise 5 » Exercise 6 » « Previous Next Chapter »
7.3 The `while` Loop 7.4 The `do...while` Loop 7.5 Controlling Loops with `break` and `continue` 7.6 Nested Loops 7.7 The `for...in` Loop (Introduction) 7.8 The `for...of` Loop (ES6) 8. Functions 8.1 Understanding Functions 8.2 Declaring Functions 8.3 Calling Functions ...
A while loop in JavaScript is a type of loop that will keep going while some condition is true. For example let sandwichesMade = 0; while (sandwichesMade < 5) { alert("Making Sandwich: " + sandwichesMade); sandwichesMade = sandwichesMade + 1; } First we set the number of sandwiches ...
Write a JavaScript function that demonstrates different looping constructs (for, while) to find an item’s index in an array. Improve this sample solution and post your code through Disqus Previous:Calculate the midpoint between two points. Next:JavaScript functions exercises...
// Function to check if a number is a happy number function happy_number(num) { var m, n; var c = []; // Continue loop until the number becomes 1 or enters a cycle while (num !== 1 && c[num] !== true) { c[num] = true; m = 0; // Calculate the sum of the squares...
JavaScript - While Loop JavaScript - For Loop JavaScript - For...in Javascript - For...of JavaScript - Loop Control JavaScript - Break Statement JavaScript - Continue Statement JavaScript - Switch Case JavaScript - User Defined Iterators
Loop For JS Loop For In JS Loop For Of JS Loop While JS Break JS Iterables JS Sets JS Set Methods JS Maps JS Map Methods JS Typeof JS Type Conversion JS Destructuring JS Bitwise JS RegExp JS Precedence JS Errors JS Scope JS Hoisting JS Strict Mode JS this Keyword JS Arrow Function ...
ECMAScript 3(1999 年 12 月):添加了许多核心功能-“[…]正则表达式,更好的字符串处理,新的控制语句[do-while,switch],try/catch 异常处理,[…]” ECMAScript 4(2008 年 7 月放弃):本来会是一次大规模升级(包括静态类型、模块、命名空间等),但最终变得过于雄心勃勃,分裂了语言的管理者。
Learn how to repeatedly execute code with loop and iteration fundamentals,Explore working with JavaScript while and for loops Lesson 5: Functions Organize your code by declaring functions and writing function expressions,Demystify tricky JavaScript behavior by learning about scope and hoisting ...
Each video breaks down a specific part of JavaScript and allows for quick referencing in the future. Some of them are just a few minutes while some of the exercises are much longer. You can binge watch them all in a few days or do a few each day during your lunch or on your commute...