log(element); } console.log('---'); // ✅ Loop through all elements in body const allInBody = document.querySelectorAll('body > *'); for (const element of allInBody) { console.log(element); } The code for this article
JavaScript provides several ways to loop through an array, each with its own set of advantages and disadvantages. In this article, we will explore the most common methods for iterating over an array in JavaScript. For loop One of the most basic and widely used ways to loop through an ...
A for loop can also be used to iterate over elements of an array. For example, const fruits = ["apple", "banana", "cherry"]; for (let i = 0; i < fruits.length; i++) { console.log(fruits[i]); } Run Code Output apple banana cherry This loop iterates through the fruits arr...
In the above example, we initialized theforloop withlet i = 0, which begins the loop at0. We set the condition to bei < 4, meaning that as long asievaluates as less than4, the loop will continue to run. Our final expression ofi++increments the count for each iteration through the ...
So, how can you loop through parent nodes in JavaScript? The easiest way to traverse up the DOM and retrieve a parent node is to useElement.closest. This is a nice little utility that traverses parent elements (all the way up to the document root). It will stop when it finds a node...
For loopLooping an ArrayLooping through HTML headersWhile loopDo While loopBreak a loopBreak and continue a loopUse a for...in statement to loop through the elements of an object JavaScript Error Handling The try...catch statementThe try...catch statement with a confirm boxThe onerror event...
function sum(array) { // Compute the sum of the elements of an array let sum = 0; // Start with an initial sum of 0. for(let x of array) { // Loop over array, assigning each element to x. sum += x; // Add the element value to the sum. ...
Loop through a block of code, but skip the value of 3: lettext =""; for(leti =0; i <5; i++) { if(i ===3)continue; text += i +""; } Try it Yourself » lettext =""; leti =0; while(i <5) { i++; if(i
This is a modal window. No compatible source was found for this media. Recursively loop through an array and return number of items with JavaScript? Kickstart YourCareer Get certified by completing the course Get Started Print Page PreviousNext...
Using a for…in Loop with Arrays When using the for...in loop to iterate arrays in JavaScript, key in this case will be the indices of the elements. However, the indices might be iterated in a random order. So, if the value variable in the for...in loop syntax structure we showed...