sort array of objects based on a string

September 19, 2022

I have a string and array like this:

const speech = 'marcllh 4th reg gh 4th ethth';

const similarityArray = [

  { split: '4th reg' },
  { split: 'reg gh' },
  { split: 'ethth' },
  { split: 'marcllh' },
  { split: '4th reg gh' },
  { split: '4th ethth' },

];

I want to sort the array based on the string from start to end.

So the desired result would be this array:

{ split: 'marcllh' },
{ split: '4th reg' },
{ split: '4th reg gh' }, // this is the continue of the previous one
{ split: 'reg gh' },
{ split: '4th ethth' }
{ split: 'ethth' },

Note that if a longer version of spited text exist it should come next as you see in the commented element.

How can I do this?

>Solution :

A solution for your reference.

const string = 'marcllh 4th reg gh 4th ethth';

const array = [
 
{ split: '4th reg gh' },
{ split: '4th reg' },
{ split: 'reg gh' },
{ split: 'ethth' },
{ split: 'marcllh' },
{ split: '4th ethth' }

];

array.sort((a,b) => {
  var ia = string.indexOf(a['split']);
  var ib = string.indexOf(b['split']);
  var result = ia - ib;
  if(result == 0){
     result = a['split'].length - b['split'].length;
  }
  return result;
});

console.log(array);