Convert string with commas to array

Question

How can I convert a string to a JavaScript array?

Look at the code:

var string = \"0,1\";
var array = [string];
alert(array[0]);

In

Answer 1

var i = "[{a:1,b:2}]",
    j = i.replace(/([a-zA-Z0-9]+?):/g, '"$1":').replace(/'/g,'"'),
    k = JSON.parse(j);

console.log(k)

// => declaring regular expression

[a-zA-Z0-9] => match all a-z, A-Z, 0-9

(): => group all matched elements

$1 => replacement string refers to the first match group in the regex.

g => global flag

Answer 2

Example using Array.filter:

var str = 'a,b,hi,ma,n,yu';

var strArr = Array.prototype.filter.call(str, eachChar => eachChar !== ',');

Answer 3

Another option using the ES6 is using Spread syntax.

var convertedArray = [..."01234"];

var stringToConvert = "012";
var convertedArray  = [...stringToConvert];
console.log(convertedArray);

Answer 4

This is easily achieved in ES6;

You can convert strings to Arrays with Array.from('string');

Array.from("01")

will console.log

['0', '1']

Which is exactly what you're looking for.

Answer 5

use the built-in map function with an anonymous function, like so:

string.split(',').map(function(n) {return Number(n);});

[edit] here's how you would use it

var string = "0,1";
var array = string.split(',').map(function(n) {
    return Number(n);
});
alert( array[0] );

Answer 6

For simple array members like that, you can use JSON.parse.

var listValues = "[{\"ComplianceTaskID\":75305,\"RequirementTypeID\":4,\"MissedRequirement\":\"Initial Photo Upload NRP\",\"TimeOverdueInMinutes\":null}]";

var array = JSON.parse("[" + listValues + "]");

This gives you an Array of numbers.

now you variable value is like array.length=1

Value output

array[0].ComplianceTaskID
array[0].RequirementTypeID
array[0].MissedRequirement
array[0].TimeOverdueInMinutes