Robust Tags Input JavaScript Library – insignia

insignia is a stand-alone JavaScript library to create beautiful, customizable tags/tokens input with ease.

Features:

• Custom delimiters.
• Allows to remove tags by clicking on the crosses.
• Duplicate tags validation.
• Supports custom event handler.

Basic Usage:

1. Download and include the insignia.js script at the end of your document.

<script src="insignia.js"></script>

2. Include the required insignia.css in the head section of the document.

<link href="insignia.css" rel="stylesheet">

3. Create a standard text field to accept tags input.

<input id="demo">

Enable the tags input. The visitor can insert a list of tags separated by ‘space’.

4. insignia(input);

5. Available parameters.

insignia(input, {
  // custom delimiter
  delimiter: ',',
  // remove tags by clicking on the crosses
  deletion: true,
  // enable/disable editing
  free: true,
  // transform tags
  parse: function (value) {
    return value.toUpperCase();
  },
  // prevents invalid tags
  preventInvalid: false,
  // converts tags whenever the blur event fires on elements other than input
  convertOnBlur: true,
  // tags validation
  validate: function(value) {
    // ...
  },
  // custom render function
  render: function(container, item) {
    // ...
  },
  // get text
  getText: function (value) {
    // ...
  },
  // get value
  getValue: function (value) {
    // ...
  },
});

6. API methods.

// Adds an item
instance.addItem(data)
// Finds an item by its data string or object.
instance.findItem(data)
// Return the index of the first item found by its data string or object
instance.findItemIndex(data)
// Finds an item by its .nsg-tag DOM element.
instance.findItemByElement(el)
// Removes an item from the input. The item is found using the data string or object.
instance.removeItem(data)
// Removes an item from the input. The item is found using a .nsg-tag DOM element.
instance.removeItemByElement(el)
// Returns the list of valid tags as an array.
instance.value()
// Returns the list of tags as an array including invalid tags.
instance.allValues()
// When changing the value of the el input by hand, call .refresh() to convert tags again.
instance.refresh()
// Removes all event listeners, CSS classes, and DOM elements created by insignia
instance.destroy()

7. Events.

// instance.on(event, eventHandler);
// or
// instance.once(event, eventHandler);
instance.on('add', function(data, el){
  // ...
});
instance.on('remove', function(data){
  // ...
});
instance.on('invalid', function(data, el){
  // ...
});

Changelog:

10/17/2022

• v5.0