Self-currying JavaScript functions
I’m telling you, this language keeps surprising me. You’ll need Prototype for this one.
Function.prototype.toSelfCurrying = function(n) {
n = n || this.length;
var method = this;
return function() {
if (arguments.length >= n) return method.apply(this, arguments);
return method.curry.apply(arguments.callee, arguments);
};
};Make a simple function:
var adder = function(a,b,c) {
return a + b + c;
};And curry away:
var add = adder.toSelfCurrying();
add(1)(2)(3) // --> 6
add(7,8)(23) // --> 38Every call to add returns a curried version of add, until the required number of arguments have been supplied. When all arguments are present, you get a return value.
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