// optional / simple context binding | |
var aFunction = require('./_a-function'); | |
module.exports = function(fn, that, length){ | |
aFunction(fn); | |
if(that === undefined)return fn; | |
switch(length){ | |
case 1: return function(a){ | |
return fn.call(that, a); | |
}; | |
case 2: return function(a, b){ | |
return fn.call(that, a, b); | |
}; | |
case 3: return function(a, b, c){ | |
return fn.call(that, a, b, c); | |
}; | |
} | |
return function(/* ...args */){ | |
return fn.apply(that, arguments); | |
}; | |
}; |