Question

What is the difference between var variable_name = {} and var variable_name = [] in javascript

Answer 1

// [] is an array, {} is an object


var arr = []; 

arr[0] = 111;
arr[1] = 222;
arr[5] = 333;

document.write(arr.length + "<br />");
document.write(arr.toString() + "<br />");


var car = {manufacturer:"VOLVO", model:"S90", color:"BLACK", price:47350};
document.write(car.manufacturer + "<br />");
document.write(car.model + "<br />");
document.write(car.color + "<br />");
document.write("$"+car.price + "<br />");;



/*
run:
    
6
111,222,,,,333
VOLVO
S90
BLACK
$47350
 
*/

 

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