JavaScript Multi Dimensional Array

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JavaScript Multi Dimensional Array

JavaScript does not support multi-dimensional arrays as like C, C++, etc.

To have multi-dimensional array in JavaScript, you have to use arrays within an array.


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<!DOCTYPE html> <html> <body> <script> var myCar = [["Jaguar", "XJ", "White"],["Maserati", "Ghibli", "red"]]; document.write("Car - " +myCar[0][0]); document.write("<br>Model - " +myCar[0][1]); document.write("<br>Color - " +myCar[0][2]); </script> </body> </html>

Declaring Multi Dimensional Array

In JavaScript, you have to declare the exact structure of the multi-dimensional array before initializing the value to it.

Note: This example will throw an error because we have initialized the third row without declaring it.


HTML Online Editor
<!DOCTYPE html> <html> <body> <p>Check your console.</p> <script> //Only two rows var myCar = [[],[]]; // first row myCar[0][0] = "Jaguar"; myCar[0][1] = "White"; // Second row myCar[1][0] = "BMW"; myCar[1][1] = "red"; // Third row (Error Occurs) myCar[2][0] = "Benz"; myCar[2][1] = "Brown"; document.write("Car1 - " +myCar[0][0]); document.write("<br>Car2 - " +myCar[1][0]); document.write("<br>Car3 - " +myCar[2][0]); </script> </body> </html>


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