Create new array for each value separated by comma in a string

Question

input string: "abc def, ghi jkl, mnopq"
Desired Output Arrays: ["abc","def"] ["ghi", "jkl"] ["mnopq"]

The input can be any combination of phrases separated by spaces, those phrases are then separated by commas. I need to make a new array for each input string which is followed by a comma. When those arrays are created they have to be split by " ".

Below is the code to split the string into array values using a comma as a separator:

str = "abc def, ghi jkl, mnopq";     
const commaSeparatedArray = this.str.split(',').filter(s => s.slice(-1) !== ' ');

console.log(commaSeparatedArray);

Not sure if the next step to take here is a for or while loop for such actions or a javascript prototype?

Link to stackblitz: https://stackblitz.com/edit/angular-ivy-vbdae5?file=src%2Fapp%2Fapp.component.ts

Pramod Mali · Accepted Answer · 2020-09-25 04:37:11Z

5

The following gives you an array of array. If something similar you are looking for.

var s = "abc def, ghi jkl, mnopq";
var result = s.split(',').map(a=>a.trim().split(' '));
console.log(result);

answered Sep 25, 2020 at 4:37

Pramod Mali

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3 Comments

Phil Over a year ago

Nice idea with trim() 👍

rkras Over a year ago

@PramodMali Thanks, great stuff. If you don't mind my asking how would i iterate through both inner and outer arrays say to console log each string seperately. I have tried: result.forEach(a=>console.log(a));

Pramod Mali Over a year ago

@rkras, you can flatten the result array using Array.prototype.flat() and loop over. i.e result.flat().forEach(a=>console.log(a). For reference on flat() developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

Not A Robot · Accepted Answer · 2020-09-25 04:39:03Z

2

str = "abc def, ghi jkl, mnopq";

//you need to again split and filter out the empty string to get the desired output.

const commaSeparatedArray = this.str.split(',').map(item => {
  const d = item.split(' ').filter(i => i);
  return [...d]
})
console.log(commaSeparatedArray)

edited Sep 25, 2020 at 4:39

Not A Robot

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answered Sep 25, 2020 at 4:37

deepak

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2 Comments

Phil Over a year ago

What's the filter for?

deepak Over a year ago

string has an extra space so when we use split it is giving an empty string and to avoid that I have used filter.

Phil · Accepted Answer · 2020-09-25 04:36:55Z

1

You basically just want to do two rounds of splitting

const str = "abc def, ghi jkl, mnopq";

const result = str.split(/,\s*/).map(substr => substr.split(/\s+/))

console.info(result)

That is

Split the string on comma + zero-or-more spaces
Then map each entry to another array by splitting that string on whitespace

answered Sep 25, 2020 at 4:36

Phil

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Comments

Mohammed Ashfaq · Accepted Answer · 2020-09-25 04:44:13Z

1

const str = "abc def, ghi jkl, mnopq";

const commaSeparatedArray = str.split(",");

const result = commaSeparatedArray.reduce((acc, stringWithspaces) => {
  return [...acc, stringWithspaces.split(" ").filter(string=> string)];
}, []);

console.log(result);

answered Sep 25, 2020 at 4:44

Mohammed Ashfaq

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Comments

54ka · Accepted Answer · 2020-09-25 05:55:27Z

1

I hope I have been helpful

var str = "abc def, ghi jkl, mnopq";
var res = str.split(', ').map(x => x.split(' '));
console.log(res);

edited Sep 25, 2020 at 5:55

answered Sep 25, 2020 at 4:48

54ka

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