how do i split numbers in a array ? javascript

Question

Im trying to split all the numbers in a array:

var array_code = [116,101,120,116];

So i want the result to look like this: [1,1,6,1,0,1,1,2,0,1,1,6]

the code im working on right now looks like this:

var array_gesplit = new Array; 

for(var i=0; i< array_code.length; i++){
    console.log(array_code[i])
    while (array_code[i]) { 
        array_gesplit.push(array_code[i] % 10 );
        array_code[i] = Math.floor(array_code[i]/10);

    }
}

The result im getting from this is: [ 6, 1, 1, 1, 0, 1, 0, 2, 1, 6, 1, 1 ]

Who can help me ?

palaѕн · Accepted Answer · 2020-03-24 11:04:52Z

3

You can use Array.from() method for this:

var array_code = [116,101,120,116];
var result = Array.from(array_code.join(''), Number)
console.log(result)

Explanation:

array_code.join('') creates a string like "116101120116"
Array.from('116101120116') on this string results in new Array of strings like:
- ["1", "1", "6", "1", "0", "1", "1", "2", "0", "1", "1", "6"]
We can also use Array.from() with map function, so that we can convert all these string values to Number in one line like:
- Array.from(array_code.join(''), x => Number(x))
- Or, just Array.from(array_code.join(''), Number)
- The above logic result is the required output.

edited Mar 24, 2020 at 11:04

answered Mar 24, 2020 at 10:51

palaѕн

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1 Comment

VLAZ Over a year ago

Just as a side-note x => Number(x) is reducible to simply Number.

Maheer Ali · Accepted Answer · 2020-03-24 10:50:54Z

1

You can use flatMap() and convert number to string and use built-in split() method.

var array_code = [116,101,120,116]; 
const res = array_code.flatMap(x => x.toString().split('').map(Number));
console.log(res)

answered Mar 24, 2020 at 10:50

Maheer Ali

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Nina Scholz · Accepted Answer · 2020-03-24 10:52:10Z

0

You could take strings and map numbers.

var code = [116, 101, 120, 116],
    result = code.flatMap(v => Array.from(v.toString(), Number));

console.log(result);

answered Mar 24, 2020 at 10:52

Nina Scholz

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Ryuno-Ki · Accepted Answer · 2020-03-24 10:53:00Z

0

Here's a hack by using some details of the JavaScript language:

var array_code = [116, 101, 120, 116];
var array_string = JSON.stringify(array_code);
var array_parts = [].slice.call(array_string);
var parts = array_parts.slice(1, -1);  // get rid of the square brackets
console.log(parts);

answered Mar 24, 2020 at 10:53

Ryuno-Ki

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1 Comment

VLAZ Over a year ago

That's not an array of numbers, it's an array of numeric strings and also ","

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