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JavaScript: decodeURI function

Description

The decodeURI is used to decode a Uniform Resource Identifier (URI), previously created by encodeURI or by a similar routine.

Syntax

decodeURI(encodedURI)

Parameters

encodedURI: A complete, encoded Uniform Resource Identifier.

Example of decodeURI Functions

The following web document decode a specified string using the decodeURI() function. The string was previously encoded by encodeURI() function.

JavaScript Code:


str1 = "https://www.w3resource.com/javascript%20tutorial.html";
console.log(str1);
str2 = decodeURI("https://www.w3resource.com/javascript tutorial.html");
console.log("After using decodeURI function : "+str2);

View the example in the browser

Live demo:

See the Pen decodeURI-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