diff options
Diffstat (limited to 'std/node/tests/node_modules/left-pad/index.js')
-rw-r--r-- | std/node/tests/node_modules/left-pad/index.js | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/std/node/tests/node_modules/left-pad/index.js b/std/node/tests/node_modules/left-pad/index.js deleted file mode 100644 index 8501bca1b..000000000 --- a/std/node/tests/node_modules/left-pad/index.js +++ /dev/null @@ -1,52 +0,0 @@ -/* This program is free software. It comes without any warranty, to - * the extent permitted by applicable law. You can redistribute it - * and/or modify it under the terms of the Do What The Fuck You Want - * To Public License, Version 2, as published by Sam Hocevar. See - * http://www.wtfpl.net/ for more details. */ -"use strict"; -module.exports = leftPad; - -var cache = [ - "", - " ", - " ", - " ", - " ", - " ", - " ", - " ", - " ", - " " -]; - -function leftPad(str, len, ch) { - // convert `str` to a `string` - str = str + ""; - // `len` is the `pad`'s length now - len = len - str.length; - // doesn't need to pad - if (len <= 0) return str; - // `ch` defaults to `' '` - if (!ch && ch !== 0) ch = " "; - // convert `ch` to a `string` cuz it could be a number - ch = ch + ""; - // cache common use cases - if (ch === " " && len < 10) return cache[len] + str; - // `pad` starts with an empty string - var pad = ""; - // loop - while (true) { - // add `ch` to `pad` if `len` is odd - if (len & 1) pad += ch; - // divide `len` by 2, ditch the remainder - len >>= 1; - // "double" the `ch` so this operation count grows logarithmically on `len` - // each time `ch` is "doubled", the `len` would need to be "doubled" too - // similar to finding a value in binary search tree, hence O(log(n)) - if (len) ch += ch; - // `len` is 0, exit the loop - else break; - } - // pad `str`! - return pad + str; -} |