Code formatter

Deno ships with a built in code formatter that auto-formats TypeScript and JavaScript code.

  1. # format all JS/TS files in the current directory and subdirectoriesdeno fmt# format specific filesdeno fmt myfile1.ts myfile2.ts# check if all the JS/TS files in the current directory and subdirectories are formatteddeno fmt --check# format stdin and write to stdoutcat file.ts | deno fmt -

Ignore formatting code by preceding it with a // deno-fmt-ignore comment:

  1. // deno-fmt-ignoreexport const identity = [    1, 0, 0,    0, 1, 0,    0, 0, 1,];

Or ignore an entire file by adding a // deno-fmt-ignore-file comment at the top of the file.