array-walk

Walk arrays like a boss

Installation

# Yep, it's that simple
npm i --save array-walk

Usage

.chop(size, array) - CUT MY LIFE INTO PIECES!

const array = require('array-walk');
 
let test = [1,2,3,4,5,6,7,8,9];
let pieces = array.chop(3, test) // Chop pieces with size 3 from array "test"
/* Result: [[1,2,3], [4,5,6], [7,8,9]]*/

.map(array, iteratee, callback) - Call a function on every item

Walks your array and calls iteratee(currentItem, next) on every item.

You need to call next() in your iteratee or the loop won't continue to the next item.

After all items are processed, the callback() is called (no arguments).

Pure synctastic awesomeness!

const array = require('array-walk');
 
let test = [1,2,3,4,5,6,7,8,9];
 
array.map(test, (item, next) => {
  console.log(`The current item is ${item}!`);
  next(); //Proceed to next item
}, () => {
  // Callback that is called after all items are walked
  console.log('Done! :)')
});

.splay(count, array, iteratee, callback) - Works like .map() but in parallel

.splay() walks your array with count pseudo-threads.

Every "Thread" has it's own queue with the items it will process.

After all Threads finish their work, a final callback will be executed.

let fs = require('fs');
let array = require('array-walk');
 
let test = [...BIG ARRAY WITH 100000 ITEMS...];
 
/*
This Example checks if the current item exists 
as a file with a maximum of 25 operations at a time
*/
array.splay(25, test, (item, next) => {
  fs.exists(item, (exists) => {
    console.log(exists ? `WOO! ${item} exists!` : `Nope. No ${item} here`);
    next();
  });
}, () => {
  console.log('All done!');
});

Do you like it?

If so, I'd be very happy if you tell your friends about this project or star the repo :)