time-to-botec

Benchmark sampling in different programming languages
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_isLaziable.js (712B)

      1 var LazyWrapper = require('./_LazyWrapper'),
      2     getData = require('./_getData'),
      3     getFuncName = require('./_getFuncName'),
      4     lodash = require('./wrapperLodash');
      5 
      6 /**
      7  * Checks if `func` has a lazy counterpart.
      8  *
      9  * @private
     10  * @param {Function} func The function to check.
     11  * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
     12  *  else `false`.
     13  */
     14 function isLaziable(func) {
     15   var funcName = getFuncName(func),
     16       other = lodash[funcName];
     17 
     18   if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
     19     return false;
     20   }
     21   if (func === other) {
     22     return true;
     23   }
     24   var data = getData(other);
     25   return !!data && func === data[0];
     26 }
     27 
     28 module.exports = isLaziable;