Sort based on startsWith in JavaScript

Asked Jun 25 '21 at 06:18

Active Jun 25 '21 at 06:56

Viewed 875 times

I am working on search. I am filtering my array based on search input. Here's my code:

const filtered = list.filter((m) =>
  m.toLowerCase().includes(search.toLocaleLowerCase())
);

Now I want my filtered array to be sorted based on startsWith().

For example, I have an array

[brother, brothersmad, other]

and my search search input is other. I want other to be on top.

edited Jun 25 '21 at 06:22

Penny Liu

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asked Jun 25 '21 at 06:18

Musadiq Khan

and what order should the other two be in? – Jaromanda X Jun 25 '21 at 06:19
Doesn't matter. I just want string starting with the search input on top. – Musadiq Khan Jun 25 '21 at 06:21
8

`["brother", "brothersmad", "other"].sort((a, b) => b.startsWith('other') - a.startsWith('other'))` – Jaromanda X Jun 25 '21 at 06:22
`true - false?` – mplungjan Jun 25 '21 at 06:23
@mplungjan yes, that works, apparently the minus operator forces both to be cast/converted to 1 and 0, respectively. – CBroe Jun 25 '21 at 06:28
I expected that much, but still klugey in my opinion – mplungjan Jun 25 '21 at 06:31
Does't sort the array @jaromanda – Musadiq Khan Jun 25 '21 at 06:42
yes it does @MusadiqKhan - you probably did it wrong – Jaromanda X Jun 25 '21 at 06:44
Should this old page receive a modern answer using this function? https://stackoverflow.com/q/10573004/2943403 or https://stackoverflow.com/q/56611426/2943403 Does Musadiq want to implement a secondary sorting criteria? – mickmackusa Jun 25 '21 at 06:45
@mickmackusa - the code in the question doesn't lend itself to supply a fully fledged answer - you get what you ask for :p OP doesn't state where/how the sort should be done – Jaromanda X Jun 25 '21 at 06:46
@mickmackusa - that's an opinion, and you're welcome to it – Jaromanda X Jun 25 '21 at 06:50
Oh, i was going to add an answer now that I'm at my computer and not on a phone ... `const dosort = (array, word) => array.slice().sort((a, b) => (b.startsWith(word) - a.startsWith(word) || a.localeCompare(b)))` ... the `.slice()` may not be required if the input array is allowed to be mutated – Jaromanda X Jun 25 '21 at 07:54

Sort based on startsWith in JavaScript

0 Answers0