2013年2月2日 · Currying, partial application and closures are all somewhat similar in that they decompose a function into more parts. Currying decomposes a function of multiple arguments into nested functions of single arguments that return functions of single arguments. There's no point in currying a function of one or less argument, since it doesn't make sense.

Currying refers to taking multiple arguments into a function that takes many arguments, resulting in a new function that takes the remaining arguments and returns a result. halver is your new (curried) function (or closure), that now takes just one parameter.

2018年12月25日 · Currying in your example doesn't really make sense, I agree. To see the functionality of currying, you need to combine it with higher order functions: functions that takes another functions as parameter. The most typical example of this is map, filter, and reduce, though another common situation is callbacks.

2016年1月22日 · In languages that support currying, I can't think of many cases where using a tuple as function input parameters would be better than breaking the tuple apart into multiple parameters, which then allows you to enjoy the full power of currying. In which situations is keeping a tuple as function parameter better than breaking it apart?

The 'currying' is supported in pure or partial functional languages like Groovy, Scala, Haskell etc. But I can do the same thing (left-curry, right-curry, n-curry or partial application) by simply creating another named or anonymous function or closure that will forward the parameters to the original function (like tripler2 ) in most languages ...

2013年3月18日 · Wikipedia actually has a well written section contrasting currying with partial application: Currying and partial function application are often conflated.[10] The difference between the two is clearest for functions taking more than two arguments. Given a function of type f:(X × Y × Z)→N, currying produces curry(f): X→(Y→(Z→N))).

2019年5月2日 · Mathematically, you can think of a multi-argument function as a function taking a single argument that is a tuple (for clarity, this is different than currying); as other's have described, returning multiple values often comes down to the same idea - you return a tuple, or a composite object of some kind.

2015年7月19日 · Currying is often used at the language level for a similar reason: simplifying the computational model. Partial application is used when a named, useful function can be implemented in terms of another, more general function simply by fixing an argument.

2016年8月24日 · Hypothetical situation - can a currying function have an unknown number of arguments (kind of like varargs) Eg in Python: addByCurrying(1)(2)(3)(4) Should equal 10 addByCurrying(5)(6) Should e...

2015年7月21日 · So JavaScript's bind supports currying, but most people use some other library like lodash or ramda to do currying. From first impression It seems like bind supports context changing, since that is it's intended role, e.g. var replaceTest = replace.bind(this, 'test') replaceTest('beta', environments) The other curry methods don't have this.