Javascript Question posted in
A very good W3school tutorial can be found here.

Javascript – Remove parts of substring with couple of conditions

how can I "clean" strings from everything that starts with GH until - mark, I need just the rest of the data, the problem is that I don’t know what number will be part of GHxxx-,GHxx- in the example, it can be anything.

Is there a way in regex to define something like this?

GH8-30476E/30477E
GH82-23124B GH82-23100B
GH82-20900Aaa, GH82-20838A
GH82-20900C,GH82-20838C
GH962-13566A
GH82-23596C/23597C/31461C

desired result:

30476E 30477E
23124B 23100B
20900Aaa 20838A
20900C 20838C
13566A
23596C 23597C 31461C

const arr = ["GH8-30476E/30477E", "GH82-23124B GH82-23100B", "GH82-20900Aaa, GH82-20838A", "GH82-20900C,GH82-20838C", "GH962-13566A", "GH82-23596C/23597C/31461C"]

arr.forEach((e, index) => {
  arr[index] = e.replace(/GH82-/gi, '');


})
console.log(arr)

Thank you in advance.

edit:
GH82-23100B can be GH82-2310044B or GH82-23B, that is why my approach was to remove GH, not match the other 5 characters.

edit2:
I edited the examples a bit. Looks like solution from comment works

Tags:

3

Answers


  1. 0
    • You could just get the output and ignore everything else:
    const regex = /[0-9]{5}[A-Z]/gm;
const arr = [
  "GH82-30476E/30477E",
  "GH82-23124B GH82-23100B",
  "GH82-20900A, GH82-20838A",
  "GH82-20900C,GH82-20838C",
  "GH962-13566A",
  "GH82-23596C/23597C/31461C",
];

let res = [];

arr.forEach((str) => {
  const M = str.match(regex);
  if (M) {
    res.push(M.join(" "));
  }
});

console.log(res);
    • If you have to remove those unwanted patterns, you can use s*[A-Z]{2}[0-9]{1,3}s*-s*|[/,.], instead:
    const regex = /s*[A-Z]{2}[0-9]{1,3}s*-s*|[/,.]/gm;
const arr = [
  "GH82-30476E/30477E",
  "GH82-23124B GH82-23100B",
  "GH82-20900A, GH82-20838A",
  "GH82-20900C,GH82-20838C",
  "GH962-13566A",
  "GH82-23596C/23597C/31461C",
];

let res = [];

arr.forEach((str) => {
  let s = str.replace(regex, " ");
  s = s.replace(/s{2,}/g, " ").trim();
  res.push(s);
});

console.log(res);

    You can add more restrictions to the pattern, depending on how your data may look like:

    /s*b[A-Z]{2}[0-9]{1,3}bs*-s*|[/,.]+/g

    • [/,.]+, anything that wanted to be removed, goes into this character class.

    • b, is a word boundary.

    • If we only have GH, then we simply use: /s*bGH[0-9]{1,3}bs*-s*|[/,.]+/g
    Login or Signup to reply.
  2. 0

    There are two way you did that.

    Method-01: find matched substring of format d{5}[A-Z] and then join them.

    Method-02: remove GHd+- substring and / or , special characters, then trim the data.

    Code as follows:

    const arr = [
  "GH82-30476E/30477E",
  "GH82-23124B GH82-23100B",
  "GH82-20900A, GH82-20838A",
  "GH82-20900C,GH82-20838C",
  "GH962-13566A",
  "GH82-23596C/23597C/31461C",
];

// Method-01
console.log('Method-01: ', arr.map(x => x.match(/d{5}[A-Z]/gi).join(' ')));

// Method-02
console.log('Method-02: ', arr.map(x => x.replace(/(GHd+-)|([/,])/gi, ' ')
                      .trim().replace(/s+/g, ' ')));
    Login or Signup to reply.
  3. 0

    You can use

    const arr = ["GH82-30476E/30477E", "GH82-23124B GH82-23100B", "GH82-20900A, GH82-20838A", "GH82-20900C,GH82-20838C", "GH962-13566A", "GH82-23596C/23597C/31461C"]

arr.forEach((e, index) => {
  arr[index] = e.replace(/GHd*-/gi, '').split(/W+/).join(" ");


})
console.log(arr)

    Here

    • .replace(/GHd*-/gi, '') – removes GH + zero or more digits and then -
    • .split(/W+/) – splits at non-word chars
    • .join(" ") – joins the resulting items with a space.
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search