JavaScript: String function

Last update on May 28 2022 10:32:18 (UTC/GMT +8 hours)

Description

The String function is used to converts a specified object to a string. String is a top-level function and is not associated with any object.

Syntax

String(obj)

Parameters

obj: Required. An object.

Example of String function

The following web document converts the Date object to a string.

JavaScript Code:

var dt = new Date (4400346634522);
var str1 = String(dt);
console.log('4400346634522 converted to : '+str1);

View the example in the browser

Live demo:

See the Pen string-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