(C-x means ctrl+x, M-x means alt+x)
The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf
:
// Takes a credit card string value and returns true on valid number | |
function valid_credit_card(value) { | |
// Accept only digits, dashes or spaces | |
if (/[^0-9-\s]+/.test(value)) return false; | |
// The Luhn Algorithm. It's so pretty. | |
let nCheck = 0, bEven = false; | |
value = value.replace(/\D/g, ""); | |
for (var n = value.length - 1; n >= 0; n--) { |