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README.md

lettering

Type text in HTML document.

Demo

Installation

npm install --save lettering

or

yarn add lettering

Usage

Basic

<body>
  <div class="text">first sentence</div>
</body>

<script src="path/to/lettering.min.js"></script>
<script>
  var lettering = new Lettering('.text');
</script>

Once you construct a new object, you get the control of text inside element.

The text in the element will start type automatically.

Note: Child Nodes inside the element will be ignored, only text typed.

Also available for input placeholder

try this:

<body>
  <input class="text" placeholder="placeholder" />
</body>

<script src="path/to/lettering.min.js"></script>
<script>
  var lettering = new Lettering('.text');
</script>

Configration

var lettering = new Lettering(elment, options)

element

  • type: string or HTMLElement

  • required: true

  • default: undefined

Note: Will throw a new Error if not provided.

options

  • type: object

  • required: false

fps

    • type: number
    • default: 15

Controls speed, means character per second, if set to 1, render one character every one second, set to 2, render two every second, and so on...

autoStart

  • type: boolean

  • default: true

Will involk type() function, and start to type.

caretShow

  • type: boolean

  • default: true

Control if blinking caret shows.

caretContent

  • type: string

  • default: |

The caret shows after the typing text.

caretClassName

  • type: string

  • default: lettering-caret

The css class of caret, you can set to your own class name to control it.

API

You can control type behavior yourself via api

typins()

lettering.typing();

backspace()

lettering.backspace()

updateContent(string)

The content will backspace and type again;

var newString = 'new string'

lattering.updateContent(newString);

Custom Events

Two custom events provided:

  • afterTyping: after text typed.

  • afterBackspace: after text deleted.

addListener()

var lettering = new Lettering(element);

// will be invoked after typing the text
lettering.addListener('afterTyping', function(){
  // every time text typed, log done
  console.log('done');
})

// will be invoked after delete the text
lettering.addListener('afterBackspace', function(){
  // every time text typed, log back
  console.log('back');
})

once()

The function you bind will involke only once.

var lettring = new Lettering(element);

lettering.once('afterTyping', function(){
  // will be logged only one time
  console.log('typed');
})

test

test with mocha

git clone https://github.com/nichenqin1001/lettering.git

then open test/index.html file

MIT LICENSE

MIT License

Copyright (c) 2017 倪晨钦

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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