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約6年前

£18-36 GBP / hour

Greetings, I have a course now in JS and functional programming and sometimes i need some help. I need a mentor that is willing to solve my questions and help me get through my problems. If you know how to write a functional and clean code please message me. Just a small test to see if you are capable to help me > We have a function cons : const cons = (x, y) => f => f(x, y); Cons store value to a variable pair : const pair = cons(5, 3); Create two functions car and cdr which each of them gonna return a argument of each. car(pair); // 5 cdr(pair); // 3 Each function should be written in one line.

JavaScript

プロジェクト ID: 16370987

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アクティブ 6年前

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@QauseenMZ

Have the answer.. Please inbox to get my answer..Hope its correct Thanks!

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@davidwang2012

Good afternoon, In response to your question, I'll give you your first lesson here. Your function calls at the end of your question are incorrect. Your initial function is a partial application: const cons = (x,y) => f => f(x,y) This means you need to first pass some x and y value to cons and then pass a function to that. You have it backwards in the code you posted. It would go like this: const cons = (x,y) => f => f(x,y) const pair = cons(5,3) const car = (x,y) => x const cdr = (x,y) => y pair(car) // returns 5 pair(cdr // returns 3 As you'll notice, you have to pass functions to pair in order to complete the partial application. I can give you more well explained lessons like this through whatever your preferred platform is. I'm located in New York, currently. But I can be flexible with my availability. So whatever time works best for you can work for me as well. I look forward to hearing more from you soon. Best regards, Naythan

£22 GBP 40日以内