AutoComplete

This is a standard JavaScript (as well as Node requiriable) class that adds super easy auto completion to your input elements.

npm
Github

Implementation

Standard Webpage JavaScript

If you are using this for a website and standard JavaScript in general, just add it to your header tag as any other script:

<header>
  <script src="ion-ezautocomplete.js"></script>
</header>

Node.js module

If you are using Node.js with Electron or something else that supports using a browser with Node.js, you can also add it as a module instead. First install it with npm i ion-ezautocomplete and then require it in your javascript file.

// Using {} when requiring only exports the AutoComplete class, which is the only thing you'll need as of right now.
const {AutoComplete} = require("ion-ezautocomplete");

If you prefer calling the class something shorter or just something else entirely, you can do that in the require statement.
Example: I would write this if I want to call it AC instead.

const {AutoComplete: AC} = require("ion-ezautocomplete");

Getting started

Adding autocompletion is as easy as 1 line of code to get started.

const instance = new AutoComplete(document.querySelector("YourInput"), ["Autocompletes"]);
// Or it can also be done using the static AutoComplete.add() function
const instance = AutoComplete.add(document.querySelector("YourInput"), ["Autocompletes"]);

AutoComplete's constructor takes 2 arguments: inputElement and completions.
Using AutoComplete.add() is completely identical to using new Autocomplete().

/**
  * Initialize an object and activate autocomplete.
  * @param {HTMLInputElement} inputElement Element to watch and autocomplete.
  * @param {string[]} completions Completions that this input box can autocomplete to. You can always add or remove by just modifying the ``completions`` variable of an instance.
  */
new AutoComplete(inputElement, completions = []);

You can easily add more dynamically by using the array push(string) function.

const ac = new AutoComplete(inputElement, completions = []);
ac.completions.push("Any new completion");

Array of completions

AutoComplete instances has an array variable called completions. You can add and remove autocompletion strings dynamically by editing this.
Default: []

/**
  * List of words and sentences available for autocompletions.
  * This list is automatically sorted by shortest to longest string when executed.
  * @type {string[]}
  */
completions = [];

Enabled/Disabled

You can disabled autocompletion temporarily until re-enabled by modifying the enabled variable.
Default: true

/**
  * The current state of activation. If ``true``, autocompletion will happen
  */
enabled = true;

Case Sensitivity

You can toggle case sensitivity by modifying the caseSensitive variable.
Default: false

/**
  * If the autocompletion should be case sensitive.
  */
caseSensitive = false;

Tab Fill

You can toggle between if the Tab button fills the autocompletion or not by editing the tabFill variable.
Default: true

/**
  * When ``Tab`` is press and an autocompletion is present, should it fill instead of tab stopping?
  */
tabFill = true;

Minimum Characters

You can limit that the autocompletions should only be suggested if the input is more than a specified count of characters. You can set the instance variable minChars to the number of characters you minimum want the user to write before it starts suggesting.
Default: 1

/**
  * The minimum about of characters in a string or word to begin suggesting autocompletions.
  */
minChars = 1;

Word Separator

AutoComplete instances also carry a separateBy variable.
By default this is space but can be set to any string. Space is the most logical thing to separate words by and therefore recommend to keep default.

Default: " "

/**
  * The character to separate words by.
  */
separateBy = " ";

Known supported element types

<input>
<textarea></textarea> <!-- Multiline supported! -->

Go ahead and try it in action, it's super simple.