pierrevdk/typewriterjs

A simple yet powerful native javascript plugin for a cool typewriter effect.

TypewriterJS v2

NPM Repository JSFiddle Example Emoji Example

CDN

You can use the CDN version of this plugin for fast and easy setup.

<script src="https://unpkg.com/typewriter-effect@latest/dist/core.js"></script>

Installation

You can install Typewriterjs with just one command and you're good to go

# with npm
npm i typewriter-effect

# with yarn
yarn add typewriter-effect

Core

This include the core typewriter library, which can be used directly through the API.

See examples in the 'examples' folder.

import Typewriter from 'typewriter-effect/dist/core';

new Typewriter('#typewriter', {
  strings: ['Hello', 'World'],
  autoStart: true,
});

Options

Name	Type	Default value	Description
strings	String or Array	null	Strings to type out when using autoStart option
cursor	String	Pipe character	String value to use as the cursor.
delay	'natural' or Number	'natural'	The delay between each key when typing.
deleteSpeed	'natural' or Number	'natural'	The delay between deleting each character.
loop	Boolean	false	Whether to keep looping or not.
autoStart	Boolean	false	Whether to autostart typing strings or not. You are required to provide strings option.
pauseFor	Number	1500	The pause duration after a string is typed when using autostart mode
devMode	Boolean	false	Whether or not to display console logs.
skipAddStyles	Boolean	Skip adding default typewriter css styles.
wrapperClassName	String	'Typewriter__wrapper'	Class name for the wrapper element.
cursorClassName	String	'Typewriter__cursor'	Class name for the cursor element.
stringSplitter	Function	String splitter function, can be used to split emoji's
onCreateTextNode	Function	null	Callback function to replace the internal method which creates a text node for the character before adding it to the DOM. If you return null, then it will not add anything to the DOM and so it is up to you to handle it.
onRemoveNode	Function	null	Callback function when a node is about to be removed. First param will be an object { node: HTMLNode, charater: string }

Methods

All methods can be chained together.

Name	Params	Description
start	-	Start the typewriter effect.
stop	-	Stop the typewriter effect.
pauseFor	ms Time to pause for in milliseconds	Pause for milliseconds
typeString	string String to type out, it can contain HTML tags	Type out a string using the typewriter effect.
pasteString	string String to paste out, it can contain HTML tags	Paste out a string.
deleteAll	speed Speed to delete all visibles nodes, can be number or 'natural'	Delete everything that is visible inside of the typewriter wrapper element.
deleteChars	amount Number of characters	Delete and amount of characters, starting at the end of the visible string.
callFunction	cb Callback, thisArg this Object to bind to the callback function	Call a callback function. The first parameter to the callback elements which contains all DOM nodes used in the typewriter effect.
changeDeleteSpeed	speed Number or 'natural'	The speed at which to delete the characters, lower number is faster.
changeDelay	delay Number or 'natural'	Change the delay when typing out each character

Examples

Basic example

var app = document.getElementById('app');

var typewriter = new Typewriter(app, {
  loop: true,
  delay: 75,
});

typewriter
  .pauseFor(2500)
  .typeString('A simple yet powerful native javascript')
  .pauseFor(300)
  .deleteChars(10)
  .typeString('<strong>JS</strong> plugin for a cool typewriter effect and ')
  .typeString('<strong>only <span style="color: #27ae60;">5kb</span> Gzipped!</strong>')
  .pauseFor(1000)
  .start();

Custom text node creator using callback

var app = document.getElementById('app');

var customNodeCreator = function(character) {
  return document.createTextNode(character);
}

var typewriter = new Typewriter(app, {
  loop: true,
  delay: 75,
  onCreateTextNode: customNodeCreator,
});

typewriter
  .typeString('A simple yet powerful native javascript')
  .pauseFor(300)
  .start();

Custom handling text insert using input placeholder

var input = document.getElementById('input')

var customNodeCreator = function(character) {
  // Add character to input placeholder
  input.placeholder = input.placeholder + character;

  // Return null to skip internal adding of dom node
  return null;
}

var onRemoveNode = function({ character }) {
  if(input.placeholder) {
    // Remove last character from input placeholder
    input.placeholder = input.placeholder.slice(0, -1)
  }
}

var typewriter = new Typewriter(null, {
  loop: true,
  delay: 75,
  onCreateTextNode: customNodeCreator,
  onRemoveNode: onRemoveNode,
});

typewriter
  .typeString('A simple yet powerful native javascript')
  .pauseFor(300)
  .start();

React

This includes a React component which can be used within your project. You can pass in a onInit function which will be called with the instance of the typewriter so you can use the typewriter core API.

import Typewriter from 'typewriter-effect';

<Typewriter
  onInit={(typewriter) => {
    typewriter.typeString('Hello World!')
      .callFunction(() => {
        console.log('String typed out!');
      })
      .pauseFor(2500)
      .deleteAll()
      .callFunction(() => {
        console.log('All strings were deleted');
      })
      .start();
  }}
/>

Alternatively you can also pass in options to use auto play and looping for example:

import Typewriter from 'typewriter-effect';

<Typewriter
  options={{
    strings: ['Hello', 'World'],
    autoStart: true,
    loop: true,
  }}
/>