Imagine I am working with an array like this: ['a', 'c', 'bb', 'aaa', 'bbb', 'aa']. My goal is to sort it in the following order:
aaa, aa, a, bbb, bb, c.
this.array= this.array.sort((n1, n2) => n1.localeCompare(n2));
this.array= this.array.sort((n1, n2) => n2.length - n1.length);
However, this approach is not yielding the desired result. How can I correct it?
To determine if one string starts with another, you can compare the lengths of the strings.
var array = ['a', 'c', 'bb', 'aaa', 'bbb', 'aa'];
array.sort((a, b) => {
let d = a.startsWith(b) || b.startsWith(a)
? b.length - a.length
: 0;
return d || a.localeCompare(b);
});
console.log(array);If String#startsWith is unavailable:
var array = ['a', 'c', 'bb', 'aaa', 'bbb', 'aa'];
array.sort((a, b) => {
let min = Math.min(a.length, b.length),
d = a.slice(0, min) === b.slice(0, min)
? b.length - a.length
: 0;
return d || a.localeCompare(b);
});
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