array-mixer
v0.7.3
Published
ArrayMixer is a simple function to reorder a group of arrays in the way you want.
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Readme
Table of contents
- Common usage
- Installation
- Parameters
- Examples
- Example 1) For every 7 photos display an ad:
- Example 2) For every 4 paragraphs of text include 2 images:
- Example 3) In a group of 8 related links reserve positions 5 and 6 for sponsored links:
- Example 4) Display a list of songs including the most successful songs for every 10 songs:
- Example 5) You can also use larger aliases and the ES6 object shorthand:
- Example 6) View photos of puppies, kittens and penguins in sequence:
- Example 7) Include 1 large photo for every 2 medium size photos followed by 3 small photos:
- More examples
- Contributing
- License
- Special thanks
Common usage
Let's think we have two arrays: photos and ads.
photos.length === 12; // true
ads.length === 6; // true
Use ArrayMixer
to create a new array containing 2 photos followed by 1 ad until the end of both arrays.
let mixedArray = ArrayMixer({P:photos, A:ads}, ["2P", "1A"]);
So mixedArray
will contain:
ArrayMixer
can be used in node projects and web projects.
Node projects
Requires node version 5.7 or later.
npm install array-mixer --save
Import it to your code using:
const ArrayMixer = require("array-mixer");
Web projects
Download latest ES5 transpiled version from unpkg.com.
Import ES5 transpiled version to your code.
<script src="https://unpkg.com/[email protected]/release/array-mixer.js"></script>
Parameters
ArrayMixer
has only two mandatory parameters.
let aliases = {M:myArray, O:otherArray};
let sequence = ["3M", "5O"];
let mixed = ArrayMixer(aliases, sequence);
Aliases
This parameter should be an object with keys used as alias for sequence and key values pointing to avaliable arrays.
Sequence
This parameters uses the aliases defined on aliases parameter to create a sequence order to display the arrays.
Examples
ArrayMixer
can be used combining different arrays, aliases and sequences.
The following examples shows some ways to use it.
Example 1) For every 7 photos display an ad:
ArrayMixer({F: Photos, A: Ads}, ["7P", "1A"]);
or (as number 1 on sequence can be ommited):
ArrayMixer({F: Photos, A: Ads}, ["7P", "A"]);
Example 2) For every 4 paragraphs of text include 2 images:
ArrayMixer({P: paragraphs, I: images}, ["4P", "2I"]);
Example 3) In a group of 8 related links reserve positions 5 and 6 for sponsored links:
ArrayMixer({R: related, S: sponsored}, ["4R", "2S", "2R"]);
Example 4) Display a list of songs including the most successful songs for every 10 songs:
ArrayMixer({M: musics, H: hits}, ["10M", "2H"]);
Example 5) You can also use larger aliases and the ES6 object shorthand:
ArrayMixer({days, weekend}, ["5days", "2weekend"]);
You can manipulate more than two vectors at a time, as in the following example:
Example 6) View photos of puppies, kittens and penguins in sequence:
let mixed = ArrayMixer({puppies, kittens, penguins}, ["puppies", "kittens", "penguins"));
| puppies
| kittens
| penguins
| mixed
|
|-----------------------|-----------------------|-----------------------------------|------------------------------------------------------------------------------|
| [:dog:, :dog:, :dog:] | [:cat:, :cat:, :cat:] | [:penguin:, :penguin:, :penguin:] | [:dog:, :cat:, :penguin:, :dog:, :cat:, :penguin:, :dog:, :cat:, :penguin:] |
Example 7) Include 1 large photo for every 2 medium size photos followed by 3 small photos:
Tip: ArrayMixer
lets you mix three or more arrays at once.
ArrayMixer({L:large, M:medium, S:small}, ["2M", "3S", "L"]);
Disclaimer: All arrays mentioned in this section must exist for the examples to work.
More examples
For more example please check the specification file.
Contributing
License
MIT - Jota Teles - 2017