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This article introduces the relevant knowledge of "what is the combination of javascript functions?". In the operation of actual cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Description

1. If a function has to be processed by multiple functions to get the final value, the functions of the intermediate process can be merged into one function.

2. Functions can be regarded as pipes of data. The combination of functions is to connect these pipes together and let the data pass through multiple pipes to form the final result.

3. Function combinations are performed from right to left by default.

Example

/ / combination function function compose (... fns) {return function (value) {return fns.reverse (). Reduce (function (acc, fn) {return fn (acc)}, value)} function first (arr) {return arr [0]} function reverse (arr) {return arr.reverse ()} / / run let last = compose (first, reverse) console.log (last ([1,2,3)) from right to left 4]) this is the end of the introduction of "what does the combination of javascript functions mean"? Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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