/typewriterjs

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

Primary LanguageJavaScriptMIT LicenseMIT

TypewriterJS v2

CircleCI

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,
  }}
/>