Replace dynamic value between dynamic characters in Javascript

Question

I have a string between characters like this:

new/set/25/
type/22/set/3/
aa/23/mine/set/9/yous
set/34
/dol/22/mmm/sss/set/23

it has a value pattern like this:

set/{n}

i tried to replace the {n} value using this function:

var pathname = 'new/set/9/'   
pathName = pathName.replace(/(/\//gset/\//g)([0-9]+)/, '$1' + '5';
//expected result = new/set/5/

but it is not working

Yves Kipondo · Accepted Answer · 2020-11-27 06:06:15Z

1

You can use String.prototype.match method to replace all capturing parentheses value by any other result like bellow

let pattern = /set\/(\d+)\/?/;

let chaines = [
  "new/set/25/",
  "type/22/set/3/",
  "aa/23/mine/set/9/yous",
  "set/34",
  "dol/22/mmm/sss/set/23"
];

chaines.map(c => {
  let matches = c.match(pattern);
  console.log(c.replace(matches[1], 5));
});

answered Nov 27, 2020 at 6:06

Yves Kipondo

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Comments

Tsubasa · Accepted Answer · 2020-11-27 06:18:40Z

1

Try this one.

let pathname = `uid/22/new/set/203/key/90`;
pathname = pathname.replace(/(?<=set\/)\d+(?=\/)/g, 5);

console.log(pathname);

edited Nov 27, 2020 at 6:18

answered Nov 27, 2020 at 4:44

Tsubasa

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2 Comments

Padawan Over a year ago

how to do it using the replace function , because im plannging to put this 'new/set/{n}' string in the url

Padawan Over a year ago

@Padawan thanks for your reference, however when i have a string like this: uid/22/new/set/203/key/90 it will become uid/5/new/set/5/key/90 instead of uid/22/new/set/5/key/90

prasanth · Accepted Answer · 2020-11-27 06:04:14Z

0

Try this regex paterrn (?<=set\/)\d+(?=\/)

Demo

console.log('uid/22/new/set/203/key/90'.replace(/(?<=set\/)\d+(?=\/)/g,'78'))

edited Nov 27, 2020 at 6:04

answered Nov 27, 2020 at 4:54

prasanth

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1 Comment

Padawan Over a year ago

thanks for your answer, what if the string inside the dynamic url for example if i have string like this uid/22/new/set/203/key/90

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