在JavaScript中对复杂字符串进行排序

Question

I have an input string like, CF10, CF6_S01, CF11_S01 . I want to sort this in ascending order like, CF6, CF10, CF11 . Not concern about _S01 in string. I am trying to split based on first number after alphabets but didn't work.

  var reA = /[^a-zA-Z]/g; var reN = /[^0-9]/g; return function(a, b) { var aA = a[key].replace(reA, ""); var bA = b[key].replace(reA, ""); if (aA === bA) { var aN = parseInt(a[key].replace(reN, ""), 10); var bN = parseInt(b[key].replace(reN, ""), 10); return aN === bN ? 0 : aN > bN ? 1 : -1; } else { return aA > bA ? 1 : -1; } }; 

Can someone help me how I can produce output: CF6, CF10, CF11 using regular expression in javascript?

Answer 1

You could try this simple one-liner solution:

 var arr = ['CF10', 'CF6_S01', 'CF11_S01'] console.log(arr.sort((a,b) => (a.match(/\\d+/)[0] - b.match(/\\d+/)[0]))) // if you don't want _S01 part console.log(arr.sort((a,b) => (a.match(/\\d+/)[0] - b.match(/\\d+/)[0])).map(e => e.split('_')[0])) 

Answer 2

A simple version specific for your use case without the use of a regular expression:

'CF10, CF6_S01, CF11_S01'
  .split(',')
  .map(x => x.trim())
  .sort((a, b) => {
    const [aa] = a.split('_')
    const [bb] = b.split('_')
    return aa.slice(2) - bb.slice(2)
  })

Answer 3

You could separate the first part into not number characters and the number. Then sort by first part and second.

 function getParts(s) { return s.match(/^(\\D+)(\\d+)/).slice(1); } var array = ['CF10', 'CF6_S01', 'CF11_S01']; array.sort((a, b) => { var aa = getParts(a), bb = getParts(b); return aa[0].localeCompare(bb[0]) || aa[1] - bb[1]; }); console.log(array); 

For soting just by the first number, you could omit other characters.

 function getValue(s) { return s.match(/\\d+/); // returns an array with only one element } var array = ['CF10', 'CF6_S01', 'CF11_S01']; array.sort((a, b) => getValue(a) - getValue(b)); console.log(array); 

Answer 4

This is not a solution using regex

 let arr = ['CF10', 'CF6_S01', 'CF11_S01']; arr.sort((a,b) => { let var1 = a.split('_')[0].split('CF')[1]; let var2 = b.split('_')[0].split('CF')[1]; return var1 - var2 }) console.log(arr) 

You can simply use split function to extract the numeric part and perform sorting based on it