4 ms·

It's not an uncommon choice in modern languages. Rust & Swift both use `let` to mean an immutable binding.

• MBCook 4y ago
  JS too.
  • favorited 4y ago
    JS has a `let` keyword, but you can reassign the value through it. `let a = 5; a = 6;` is valid JavaScript, and the value of `a` would be 6.
• pjmlp 4y ago
  Modern going all the way back to the 1970's in ML, and a common way to declare variables in BASIC.