Loops allow us to cycle through items in arrays or objects and do things like print them, modify them, or perform other kinds of tasks or actions. There are different kinds of loops, and the for loop in JavaScript allows us to iterate through a collection (such as an array). In this ...
This JavaScript tutorial explains how to use the for loop with syntax and examples. In JavaScript, the for loop is a basic control statement that allows you to execute code repeatedly for a fixed number of times.
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JavaScript - For...in Loop - The for...in loop in JavaScript is used to loop through an object's properties. The JavaScript for...in loop is a variant of the for loop. The for loop can't be used to traverse through the object properties. So, the for...in
JavaScript for...of loop The syntax of thefor...ofloop is: for(elementofiterable) {// body of for...of} Here, iterable- an iterable object (array, set, strings, etc). element- items in the iterable In plain English, you can read the above code as: for every element in the iter...
The generic syntax of the do-while loop is:do { // Code to be executed } while(condition); The JavaScript code in the following example defines a loop that starts with i=1. It will then print the output and increase the value of variable i by 1. After that the condition is ...
JavaScript - For Loop - The JavaScript for loop is used to execute a block of code repeteatedly, until a specified condition evaluates to false. It can be used for iteration if the number of iteration is fixed and known.
The advantage the for loop has over other loops, like the while loop, is that it allows you to increase a value on every loop easily. Throughout this tutorial, we will discuss how a for loop is defined within JavaScript and how you can utilize it. Using console.log() in JavaScript Con...
s code. If you don’t want to put a condition or a way to get out of the loop, you would be building an infinite loop. But if this is not your intention then you will have to put a condition and an expression that changes the value of the variable, as we have done in the ...
How for...in works? for...in loop examples for...in loop and prototypes Browser compatibilityThe for...in loop iterates through the properties of an object in JavaScript. The loop iterates over all enumerable properties of the object itself and those inherited from its prototype chain.How ...