To convert a comma separated string into an array in JavaScript, you can use the string.split() method. The split() method lets you split a string at a given character and returns an array as a result.
Here is its syntax:
str.split(separator, limit)
So, if you want to split the string at each occurrence of a comma(,), you have to pass a comma(',') as a separator to the split() method.
See the following example:
let str = 'apple,banana,mango,orange';
let arr = str.split(',');
console.log(arr);
// Output 👇
// ["apple", "banana", "mango", "orange"]
If the string you want to split has spaces after commas, then in the separator, you have to put a space after the comma too.
See the following example:
let str = 'apple, banana, mango, orange';
let arr = str.split(', ');
console.log(arr);
// Output 👇
// ["apple", "banana", "mango", "orange"]
In case, the string we want to split at each comma is empty, then the resulting array will not be empty, instead, it will contain an empty string.
See the following example:
let str = '';
let arr = str.split(',');
console.log(arr);
// Output 👇
// [""]
