Category Archives: Software Development

This category contains all my posts about software development. Tutorials, solutions to problems I’ve met, interesting things I’ve stumbled over, code samples, stuff I don’t want to forget, et cetera.

Natural sort in Javascript

Sorting strings naturally/numerically in Javascript is very simple. You just need to remember the existence of the Intl.Collator… which I keep forgetting…

You simply create one and use its compare function:

const collator = new Intl.Collator(undefined, {
    usage: 'sort',
    numeric: true
})

const simple = ['a1', 'a12', 'a2']
simple.sort(collator.compare)
// => ['a1', 'a2', 'a12']

const objects = [{"id": "a1"}, {"id": "a12"}, {"id": "a2"}]
const by = (key) => (a, b) => collator.compare(a[key], b[key])
objects.sort(by('id'))
// => [{id: 'a1'}, {id: 'a2'}, {id: 'a12'}]

Git: Undo last commit

Sometimes I forget to create a new feature branch, and accidentally commit to master. Keep having to look up how to fix it…

# From master, create new branch, which will include the accidental commits
git branch feature/foobar

# Move master HEAD back, which will remove the commits from there
git reset --hard HEAD~1

# Checkout feature branch, where the commits should still exist
git checkout feature/foobar