javascript split string to array of int

Question

I have a string that\'s on the page and from which I want an array of int.

2,3,0,43,23,53

I\'m writin

Answer 1

var ArrayData = $.map($('#TheData').text().split(','), function(value){
    return parseInt(value, 10);
    // or return +value; which handles float values as well
});

You can use $.map to transform the array of strings to ints by calling parseInt on each of the elements in the array

Answer 2

var ArrayData = $('#TheData').html().split(',').map( Number );

Add Array.prototype.map() to older browsers with the code from MDN.

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You can use jQuery's $.map() in the same manner, though it won't work with $.prototype.map().

var ArrayData = $.map( $('#TheData').html().split(','), Number );

Answer 3

var ArrayData = $('#TheData').text().split(',').map(Number);

You can find more here:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map

Answer 4

Pure Javascript solution:

const elementText = document.getElementById('divSourceID').innerText;
const numericList = elementText.split(',').map(Number);

For more information:

1. getElementById: "The Document method getElementById() returns an Element object representing the element whose id property matches the specified string. Since element IDs are required to be unique if specified, they're a useful way to get access to a specific element quickly. (...)". Source: developer.mozilla.org.

2. Array.prototype.map: "The map() method creates a new array populated with the results of calling a provided function on every element in the calling array". Source: developer.mozilla.org.

3. array.map(Number): This call means the first received argument will be automatically converted into number and results in the same as if you explicitly declare the arrow function:

const numericList = elementText.split(',').map(Number);

same result as:

const numericList = elementText.split(',').map(str => Number(str));

JIT: Special thanks to @Robbendebiene for the excellent code review, simplifying the previous code.

Answer 5

Here is a simple answer

let x = "1,2,3,4";

let result = x.split(",").map((e) => parseInt(e));

console.log(result);