Pinned

1. Convert Decimal to Hexadecimal in Ja... Convert Decimal to Hexadecimal in Javascript

   1

   // The simple way

   2

   const hex = (number) => number.toString(16)

   3

   4

   console.assert(hex(15) === 'f')

   5

   console.assert(hex(-30) === '-1e')

2. Parse Options Passed to a Bash Script Parse Options Passed to a Bash Script

   1

   #!/usr/bin/env bash

   2

   # Paste this into a file, chmod 755 it, and try it out

   3

   4

   while :; do

   5

       case $1 in

3. Ruby Shebang Ruby Shebang

   1

   # with debugging options

   2

   #!/usr/bin/ruby -w

   3

   4

   # regular

   5

   #!/usr/bin/ruby