You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
599 B
24 lines
599 B
var aFunction = require('../internals/a-function');
|
|
|
|
// optional / simple context binding
|
|
module.exports = function (fn, that, length) {
|
|
aFunction(fn);
|
|
if (that === undefined) return fn;
|
|
switch (length) {
|
|
case 0: return function () {
|
|
return fn.call(that);
|
|
};
|
|
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);
|
|
};
|
|
};
|
|
|