time-to-botec

Benchmark sampling in different programming languages
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after.js (1060B)

      1 var toInteger = require('./toInteger');
      2 
      3 /** Error message constants. */
      4 var FUNC_ERROR_TEXT = 'Expected a function';
      5 
      6 /**
      7  * The opposite of `_.before`; this method creates a function that invokes
      8  * `func` once it's called `n` or more times.
      9  *
     10  * @static
     11  * @memberOf _
     12  * @since 0.1.0
     13  * @category Function
     14  * @param {number} n The number of calls before `func` is invoked.
     15  * @param {Function} func The function to restrict.
     16  * @returns {Function} Returns the new restricted function.
     17  * @example
     18  *
     19  * var saves = ['profile', 'settings'];
     20  *
     21  * var done = _.after(saves.length, function() {
     22  *   console.log('done saving!');
     23  * });
     24  *
     25  * _.forEach(saves, function(type) {
     26  *   asyncSave({ 'type': type, 'complete': done });
     27  * });
     28  * // => Logs 'done saving!' after the two async saves have completed.
     29  */
     30 function after(n, func) {
     31   if (typeof func != 'function') {
     32     throw new TypeError(FUNC_ERROR_TEXT);
     33   }
     34   n = toInteger(n);
     35   return function() {
     36     if (--n < 1) {
     37       return func.apply(this, arguments);
     38     }
     39   };
     40 }
     41 
     42 module.exports = after;