How to Reduce Functions in Javascript

Diegoper — Mon, 23 Mar 2020 22:43:07 +0000

Run a list of functions and get a list of results:

Hi, I'm a new programmer!

I've been studying for a few months and would like to share this piece of code that came to mind when I studied about the Reduce() function.

I know it's something simple, but it could be useful for many people to extend it, comment on it and improve it.


    
// Run with Node 11 or higher

// DATA-COLLECTING FUNCTIONS
const func1 = () => { return { user: 'Diego Perdomo' } }
const func2 = () => { return { skills: ['Js', 'React', 'Node', 'Sql'] } }
const func3 = () => { return { webs: ['dpercode.com', 'dev.to/diegoper'] } }
const func4 = () => { return { articles: ['My Article 1', 'My Article 2'] } }

// CREATE ARRAY OF FUNCTIONS
const myFunctions = [func1, func2, func3, func4]

// REDUCE THE FUNCTIONS
const funcReducer = myFunctions.reduce((funcAccumulator, nextFunc) => {
    let arrayFunc = [];
    funcAccumulator === undefined ?
        arrayFunc.push(nextFunc()) :
        arrayFunc.push(funcAccumulator, nextFunc())
    return arrayFunc.flat();
}, undefined)

// RESULTS
console.log(funcReducer)

// RESULT
[
  { user: 'Diego Perdomo' },
  { skills: [ 'Js', 'React', 'Node', 'Sql' ] },
  { webs: [ 'dpercode.com', 'dev.to/diegoper' ] },
  { articles: [ 'My Article 1', 'My Article 2' ] }
]

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DEV Community: Diegoper

How to Reduce Functions in Javascript

Run a list of functions and get a list of results:

Hi, I'm a new programmer!