FM / one-time

/var/www/qr4y.com/server/delivery/node_modules/one-time/

/var/www/qr4y.com/server/delivery/node_modules/one-time

Name	Size	Mode	Actions
async.js	1056	0644	edit dl rm
index.js	1027	0644	edit dl rm
LICENSE	1115	0644	edit dl rm
package.json	1689	0644	edit dl rm
README.md	2157	0644	edit dl rm

Edit: /var/www/qr4y.com/server/delivery/node_modules/one-time/index.js (1027B)

'use strict';

var name = require('fn.name');

/**
 * Wrap callbacks to prevent double execution.
 *
 * @param {Function} fn Function that should only be called once.
 * @returns {Function} A wrapped callback which prevents multiple executions.
 * @public
 */
module.exports = function one(fn) {
  var called = 0
    , value;

/**
   * The function that prevents double execution.
   *
   * @private
   */
  function onetime() {
    if (called) return value;

called = 1;
    value = fn.apply(this, arguments);
    fn = null;

return value;
  }

//
  // To make debugging more easy we want to use the name of the supplied
  // function. So when you look at the functions that are assigned to event
  // listeners you don't see a load of `onetime` functions but actually the
  // names of the functions that this module will call.
  //
  // NOTE: We cannot override the `name` property, as that is `readOnly`
  // property, so displayName will have to do.
  //
  onetime.displayName = name(fn);
  return onetime;
};

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