The Array() constructor is used to create Array objects and the array constructor can be called with or without a new keyword, both can create a new Array.
Syntax:
new Array(Value1, Value2, ...); new Array(ArrayLength); Array(Value1, Value2, ...); Array(ArrayLength);
Parameters:
- ValueN: An array initialized by the given value, except in the case where only one value is provided to the array constructor and that value is a number. Unfortunately, the previous condition does not hold true if an array is built using the [ ]operator.
- arrayLength: If the Value is only one element that is also a number between 0 and 2^32 – 1 then an array object is created with the length property set to the array property.
Example 1: In this example, we will use the basic use of the Array() constructor.
Javascript
// Using elements const array1 = new Array(1, 2, 3, 4, 5) // Using arrayLength const array2 = new Array(10) console.log(array1); console.log(array2); |
Output:
(5) [1, 2, 3, 4, 5] (10) [empty × 10]
Example 2: In this example, we will use an array with a string value.
Javascript
const language = new Array("HTML", "CSS", "Javascript"); console.log(language.length); console.log(language[0]); console.log(language[1]); console.log(language[2]); |
Output:
3 HTML CSS Javascript
We have a complete list of Javascript Array() methods, to check those please go through this JavaScript Array Reference article.
Supported Browsers:
- Chrome 1
- Edge 12
- Firefox 1
- Opera 4
- Safari 1
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