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up vote 3 down vote favorite

Hi I want to use nested arrays in my javascript function but it doesn't work. Here is my function:

var arr = [];

function test(id, value){
   arr.push(new Array("id" = id, "value" = value));
}

so as you find out I want to create something like this:

arr[0][id = "example0", value = "value0"];
arr[1][id = "example1", value = "value1"];
arr[2][id = "example2", value = "value2"];
...
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2 Answers

up vote 9 down vote accepted

Because new Array("id" = id, "value" = value) is not an array.

You want an array holding an object.

arr.push({"id":id, "value":value});

Read values

console.log(arr[0].id);
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up vote 0 down vote

You should create an array of objects, then you reference their properties.

var arr = [];

function test(id, value){
     arr.push({"id":id,"value":value});
}


function getValue(i)
{
     return arr[i].value;
}

test(100,"hello");
test(101,"world");

alert(getValue(0)); // hello
alert(getValue(1)); // world
alert(arr[1].id); // 101
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