Create an array by populating an Object with JS

Could you provide instructions on how to populate this element as an array?

testdata = [
    {
        key: "one",
        y: 200
    },
    {
        key: "two",
        y: 300
    }
       ];

For example:

testdata=[];
testdata[]="one";
testdata[]="two";

Answer №1

Creating a JSON object using a function is the way to go. Define a function called GenerateJSON and then simply iterate through a for loop like this:

var jsonObjArray = [];
for(var index = 0; index < 10; index++) {
   var jsonObject = GenerateJSON(index); //add additional parameters as necessary
   jsonObjArray.push(jsonObject);
}
return jsonObjArray;

Answer №2

Perhaps you are looking to work with a two-dimensional JavaScript array.

var items = [[11,22],[33,44],[55,66]];
alert(items[0][0]); // 11;

Alternatively, you might be interested in creating a dictionary object like the one below:

var dict = []; // create an empty array

dict.push({
    key:   "keyName",
    value: "the value"
});

For more information, please visit : How to create dictionary and add key value pairs dynamically in Javascript

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