JavaScript - convert json text to array variable

In this article, we would like to show you how to convert a JSON text to an array variable in JavaScript.

1. JSON.parse example

// ONLINE-RUNNER:browser;

function parseArray(json) {
    var array = JSON.parse(json);

    if(array instanceof Array) {
        return array;
    }

    throw new Error('Incorrect type!');
}

// Example:

var json = '[1, 2, 3]';
var array = parseArray(json);

console.log(array);    // 1,2,3

console.log(array[0]); // 1
console.log(array[1]); // 2
console.log(array[2]); // 3

Output:

1,2,3

1
2
3

See also

1. JavaScript - deserialize json to object