Please why is my code not working,do I need to install any library

Question

Recently started functional programming and all explanations of the pipe and compose using reduce which I have seen are very sketchy.
https://code.sololearn.com/WZurf7Iml396/?ref=app

Answer 1

use pydroid and install it with pip

Answer 2

https://code.sololearn.com/WBluPd2XU5sl/?ref=app

Answer 3

This seems like advanced stuff, But you're using simple vars. You need to be making functions so you can create the function compositions.
https://itnext.io/write-better-javascript-function-composition-with-pipe-and-compose-93cc39ab16ee

Answer 4

I really don't get you Chris ..what is simple vars?

Answer 5

I understand the process it's just getting the code to work that has been my problem

Answer 6

So you understand the difference between variables and functions?

Answer 7

Functions can also be expressed as variables or am I wrong?

Answer 8

So in your example where are your functions? You have stored something in the variables but what you have stored are not functions.

Answer 9

Theres a few issues, my friend.
First remove the var x = 4, and you need to change your subtract, multiply and add into functions i would recommend you use arrow notation for this.
Second your pipe statement must be delcared with const pipe =
Third in your pipe statement you used functions and function which is a reserved keyword in JS change these to something else like funcs and func
Lastly in the result remove the 4, then console.log(result(4))

Give it a try, if you still stuggle drop a reply and I’ll help further

Answer 10

steve Purpose This is what made it click for me. Honestly I have not used function composition until I read your post, lol.
https://javascript.plainenglish.io/a-working-example-of-function-composition-in-javascript-5e8c704a13ca

Answer 11

Nice at Chris..I'll go through it.. compose and pipe is looking like the hardest thing for me since I started programming last December.

Answer 12

Oh forgot this one it has an illustration.
https://www.educative.io/edpresso/function-composition-in-javascript

Answer 13

✌️😀 You deserve a coffee

Answer 14

What's funny and annoying is that the corrections you showed ,was the initial code I wrote but it kept returning errors and now I changed it back and it worked

Answer 15

Yeah I know about Ramda..Thanks all the same..we got it solved.

Answer 16

Underscore I run sololearn on Android..My pc currently has an issue..Can I run Ramda on my Android?

Answer 17

keep it running

Answer 18

Bob_LI I can no longer find the Ramda link you sent to me.