Question

10

Creating and Accessing 2-dimensional arrays in javascript

rated 0 times [ 14] [ 4] / answers: 1 / hits: 62823 / 12 Years ago, sat, september 29, 2012, 12:00:00

I'm confused about how to create and access 2-dimensional arrays in javascript. Below is an array declaration in which I'm storing names of people and then the src for their image. When I try to access myArray[0][0] element I get 'D' and when I try to access myArray[0,0], I get Donald Duck. How can I access the img src myArray[0][0] = assets/scrybe.jpg ?

JS code:

var myArray = new Array(1);



myArray[0] = Donald Duck;

myArray[1] = Winnie Pooh;

myArray[2] = Komal Waseem;

myArray[3] = Hockey;

myArray[4] = Basketball;

myArray[5] = Shooting;

myArray[6] = Mickey Mouse;



myArray[0][0] = assets/scrybe.jpg;

myArray[1][0] = assets/scrybe.jpg;

myArray[2][0] = assets/scrybe.jpg;

myArray[3][0] = assets/scrybe.jpg;

myArray[4][0] = assets/scrybe.jpg;

myArray[5][0] = assets/scrybe.jpg;

myArray[6][0] = assets/scrybe.jpg;

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

jocelynkarsynr

Add To Favorites

Follow

Total Points: 472

Total Questions: 98

Total Answers: 96

Location: Macau

Member since Mon, Nov 16, 2020

4 Years ago

jocelynkarsynr questions

1 file upload using axios in react

Tue, Feb 8, 22, 00:00, 2 Years ago

1 Unable to write data (addRow) into Excel file in Nodejs

Sat, Jul 11, 20, 00:00, 4 Years ago

1 How can I export * as namespace in Babel?

Sun, May 10, 20, 00:00, 4 Years ago

1 React Routing to Same Component with Different URL

Sat, Jan 18, 20, 00:00, 4 Years ago

1 How do I persist user authentication using the Firebase refresh token?

Tue, Aug 20, 19, 00:00, 5 Years ago

View All

answered 12 Years ago hayleevalenciac · Accepted Answer

Firstly, to create an array, it's better to use the square bracket notation ( [] ):

var myArray = [];

This is the way you emulate a multi-demensional array in JavaScript. It's one or more arrays inside an array.

var myArray = [

    [], [] // two arrays

];

If you're asking if there's a way to declare an array as multi-dimensional, then no, there isn't. You can access them like this:

myArray[0][0]; // the 1st element of the first array in myArray

myArray[1][1]; // the 2nd element of the second array in myArray

Here is the code you were probably looking for:

var myArray = [

    [Donald Duck, assets/scrybe.jpg],

    [Winnie Pooh, assets/scrybe.jpg],

    [Komal Waseem, assets/scrybe.jpg]

    [/* and so on...*/]

];

But since you're giving all the names the same URL, then you can use a for loop instead to do this faster:

for (var i = 0; i < myArray.length; i++) {

    myArray[i][1]  = assets/scrybe.jpg;

}