How to use JavaScript remove numbers and letters after a character from array

Question

I am trying to use Javascript to remove the dash and everything after in an array of product ids. But not if the dash is in the middle of the product id. For example product ids:

["630932-8", "640993-8", "1951-83044226", "641452-10", "1924-57044108", "630695-8 DD/F", "641058-8", "630932-20", "630695-14 DD/F", "630695-22 D/DD", "630695-12 C/D", "661049-6", "661050-4", "630692-8 C/D", "630513-38 G", "630513-36 F", "630655-36 DD", "630695-8 C/D", "661049-4", "630695-16 C/D"]

This is for use within a tag management system and need the to drop everything after the "-" so it would be

["630932", "640993", "1951-83044226", "641452", "1924-57044108", "630695", "641058", "630932", "630695", "630695", "630695", "661049", "661050", "630692", "630513", "630513", "630655", "630695", "661049", "630695"]

There will be some that have will have 4 digits then the dash and those need to stay. The Product ids are currently populated in a datalayer with the "-" they are referenced by utag.data.product_skus

Maheer Ali · Accepted Answer · 2019-05-25 09:30:51Z

1

You can use map() and split().

Use map() on the array.
split() all the strings by -.
Check if first part of result of split() has length 4 then return the original string.
Otherwise return the first part of the result obtained from split()

let arr = ["630932-8", "640993-8", "1951-83044226", "641452-10", "1924-57044108", "630695-8 DD/F", "641058-8", "630932-20", "630695-14 DD/F", "630695-22 D/DD", "630695-12 C/D", "661049-6", "661050-4", "630692-8 C/D", "630513-38 G", "630513-36 F", "630655-36 DD", "630695-8 C/D", "661049-4", "630695-16 C/D"]


let res = arr.map(x => {
  let parts = x.split('-');
  return parts[0].length === 4 ? x : parts[0];
  
})

console.log(res)

answered May 25, 2019 at 9:30

Maheer Ali

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Nina Scholz · Accepted Answer · 2019-05-25 09:32:53Z

1

You could replace unwanted parts.

function remove(s) {
    return s.replace(/^(\d{5,})-.*$/, '$1');
}

var array = ["630932-8", "640993-8", "1951-83044226", "641452-10", "1924-57044108", "630695-8 DD/F", "641058-8", "630932-20", "630695-14 DD/F", "630695-22 D/DD", "630695-12 C/D", "661049-6", "661050-4", "630692-8 C/D", "630513-38 G", "630513-36 F", "630655-36 DD", "630695-8 C/D", "661049-4", "630695-16 C/D"];

console.log(array.map(remove));

answered May 25, 2019 at 9:32

Nina Scholz

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Comments

Jack Bashford · Accepted Answer · 2019-05-25 09:30:20Z

0

Use map and split, with a regex to check the 4-digit case:

const data = ["630932-8", "640993-8", "1951-83044226", "641452-10", "1924-57044108", "630695-8 DD/F", "641058-8", "630932-20", "630695-14 DD/F", "630695-22 D/DD", "630695-12 C/D", "661049-6", "661050-4", "630692-8 C/D", "630513-38 G", "630513-36 F", "630655-36 DD", "630695-8 C/D", "661049-4", "630695-16 C/D"];
const res = data.map(s => /^\d{4}-/.test(s) ? s : s.split("-")[0]);
console.log(res);

.as-console-wrapper { max-height: 100% !important; top: auto; }

answered May 25, 2019 at 9:30

Jack Bashford

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Comments

Yves Kipondo · Accepted Answer · 2019-05-25 10:07:54Z

0

You could proceed like this

var data = ["630932-8", "640993-8", "1951-83044226", "641452-10", "1924-57044108", "630695-8 DD/F", "641058-8", "630932-20", "630695-14 DD/F", "630695-22 D/DD", "630695-12 C/D", "661049-6", "661050-4", "630692-8 C/D", "630513-38 G", "630513-36 F", "630655-36 DD", "630695-8 C/D", "661049-4", "630695-16 C/D"];

var needed_data = [];
data.map(function(val) {
  var matches = val.match(/^([0-9]{5,})-.*/);
  if(matches) {
    needed_data.push(matches[1])
  } else  {
    var submatches = val.match(/(^[0-9]{4})-([0-9]*)/);
    if(submatches[1] && submatches[2]) {
      needed_data.push(val)
    }
  }
});

console.log(needed_data);

answered May 25, 2019 at 10:07

Yves Kipondo

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