JavaScript forEach () is a method or function which calls the provided function for each element in an array in order. It is used to perform any operation on elements of the given array. Remember, it can not be executed for array elements without values.
Table of Contents
The following browsers support JavaScript ForEach () method:
array.forEach(function(current_Value, index, arra), thisValue)
Where arra is optional parameter which is the current array to whom an element belongs. index is also optional parameter which is index of current element. currentValue is required parameter which is value of current element. thisValue is optional, it will be “undefined” if left empty, a value “this” should be passed.
You may be interested in learning Express JS.
var colors = ["Blue", "Yellow", "Red"] colors.forEach(myColors); function myColors(color, index){ document.getElementById("myDiv").innerHTML += color + ":"+ index + "<br>"; }
var values = [1, 2, 3] var clone = []; values.forEach(myClone); myClone(value){ clone.push(value * 2); } print(clone);
var sum = 0; var array = [155 , 45, 87, 8, 98, 14, 74]; array.forEach(mySum); function mySum(num){ sum += num; console.log(sum) }
Sponsored by WebSoft IT Development Solutions Private Limited
NGINX Server Nginx, a popular open-source web server, excels at handling high traffic websites efficiently.… Read More
In the realm of web hosting, choosing the right web server is paramount. It acts… Read More
Are indispensable for ensuring smooth, precise linear motion in many industrial applications. Whether in robotics,… Read More
Cyber attacks are becoming more frequent, complex, and damaging. They can disrupt critical operations and… Read More
With the rise of new threats and the increasing complexity of IT environments, organizations need… Read More
1. Introduction In software design, managing complex systems can be challenging. The Facade Design Pattern… Read More