How can I quickly sort a 2d array in JavaScript according to value of both columns?
Array will appear in this format:
[12, 3]
[12, 2]
[54, 43]
[32, 12]
After sorting it should look like this:
[12, 2]
[12, 3]
[32, 12]
[54, 43]
You can use Array.sort and subtract the first items in the nested arrays to determine precedence. If they're equal, subtract the second items.
const arr = [
[12, 3],
[12, 2],
[54, 43],
[32, 12]
]
const res = arr.sort((a,b) => a[0] - b[0] || a[1] - b[1])
console.log(res)