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