JavaScript Two Dimensional Arrays

Implement Two Dimensional Arrays In JavaScript Part III of Array Series

An array specifies a variable that can be indexed as a list in rows and columns. A two-dimensional array is an array of arrays requiring two indices to select an element.

The first index is zero as is common in most programming languages. JavaScript objects can be used as associative arrays.

An array is a data structure consisting of a collection of elements which are values or variables.

Common Functions For Manipulating Two Dimensional Arrays In JavaScript

Common Array Functions

Ojamboshop.com Learning JavaScript Two Dimensional Array Functions

Name	Description	Example
Array.push()	Append row	int_array.push([4, 5, 6]);
Array.splice()	Add row at specified index	int_array.splice(1, 0, [7, 8, 9]);
Array.splice()	Remove row at specified index	int_array.splice(1, 1);
Array.unshift()	Insert row at the beginning	int_array.unshift([0, 0, 0]);
Name	Description	Example

JavaScript Two Dimensional Arrays Snippet

// OjamboShop.com Learning JavaScript Arrays Part III Tutorial //
let int_array = [ [11,22,33], [111,222,333]];
let array2D =  [["Ford","F-Series",1984],["GMC","C-Series",1986]];
console.log(int_array);
console.log(array2D);
int_array.push([4, 5, 6]); // Append row
console.log(int_array);
int_array.splice(1, 0, [7, 8, 9]); // Add row at index
console.log(int_array);
int_array.unshift([0, 0, 0]); // Insert row at beginning
console.log(int_array);

Usage

You can use any IDE or text editor and the web browser to compile and execute JavaScript code. For this tutorial, the OjamboShop.com Learning JavaScript Course Web IDE was used to input and compile JavaScript code for the two dimensional arrays.

Open Source

JavaScript follows the ECMAScript standard and is licensed under the W3C Software License by web browser vendors and runtime environment vendors. This allows commercial use, modification, distribution, and allows making derivatives proprietary.

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Conclusion:

JavaScript makes it easy to use two dimensional arrays. Use two dimensional arrays to an array of arrays requiring two indices to select an element.

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References:

• JavaScript Arrays Article Part I
• JavaScript Arrays Article Part II
• Learning JavaScript Course on OjamboShop.com
• Learning Python Course on OjamboShop.com
• Learning PHP Course on OjamboShop.com
• Learning JavaScript Ebook on Amazon
• Learning Python Ebook on Amazon
• Learning PHP Ebook on Amazon
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