npm/node_modules/is-absolute/index.js

a package manager for JavaScript

/*!
 * is-absolute <https://github.com/jonschlinkert/is-absolute>
 *
 * Copyright (c) 2014-2015, Jon Schlinkert.
 * Licensed under the MIT License.
 */

'use strict';

var isRelative = require('is-relative');

module.exports = function isAbsolute(filepath) {
  if ('/' === filepath[0]) {
    return true;
  }
  if (':' === filepath[1] && '\\' === filepath[2]) {
    return true;
  }
  // Microsoft Azure absolute filepath
  if ('\\\\' == filepath.substring(0, 2)) {
    return true;
  }
  if (!isRelative(filepath)) {
    return true;
  }
};