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JavaScript: decodeURIComponent functions

Description

The decodeURIComponent function is used to decode a Uniform Resource Identifier (URI) component previously created by encodeURIComponent.

Syntax

decodeURIComponent(encodedURI)

Parameters

encodedURI: An encoded component of a Uniform Resource Identifier.

Example of decodeURIComponent() function

In the following web document decodeURIComponent() function is used to decode a Uniform Resource Identifier (URI) component previously created by encodeURIComponent.

JavaScript Code:

url1 = "https://w3resource.com/xyz=http%3A%2F%2Fmyw3r.com%2Fx%3D31%26y%3D21&xyz3=45"; 
//Lets decode url1
console.log(decodeURIComponent(url1));

View the example in the browser

Live demo:

See the Pen decodeURIComponent-function-1 by w3resource (@w3resource) on CodePen.


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JavaScript: Tips of the Day

How to insert an item into an array at a specific index (JavaScript)?

What you want is the splice function on the native array object.

arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:

var arr = [];
arr[0] = "Jani";
arr[1] = "Hege";
arr[2] = "Stale";
arr[3] = "Kai Jim";
arr[4] = "Borge";

console.log(arr.join());
arr.splice(2, 0, "Lene");
console.log(arr.join());

Ref: https://bit.ly/2BXbp04