Given a DOM node, return a unique CSS selector matching only that element. This is particularly useful when tracking in custom variables in analytics:

document.addEventListener('click', function(event) {
    var selector = unique(event.target);

    _gaq.push(['_trackEvent', 'Engagement', 'Click', selector]);
}, false);

e.g.1 DomElement = <span id="test"></span>

import unique from 'unique-selector';

// Optional Options
options = {
    // Array of selector types based on which the unique selector will generate
    selectorTypes : [ 'ID', 'Class', 'Tag', 'NthChild' ]
}

unique( DomElement, options ); // #test

e.g.2 DomElement = <span test="2"></span>

import unique from 'unique-selector';

// Optional Options
options = {
    // Array of selector types based on which the unique selector will be generate
    selectorTypes : [ 'Attributes' ]
}

unique( DomElement, options ); // [test="2"]

e.g.3 DomElement = <div id="xyz" class="abc test"></div>

import unique from 'unique-selector';

// Optional Options
options = {
    // Regular expression of ID and class names to ignore
    excludeRegex : RegExp( 'xyz|abc' )
}

unique( DomElement, options ); // .test

$ npm run test

Feel free to open issues, make suggestions or send PRs. This project adheres to the Contributor Covenant code of conduct. By participating, you are expected to uphold this code.

Avraam Mavridis : @avraamakis

Eric Clemmons : @ericclemmons

• v0.1.0

  • Big refactor/rewrite using es6
  • More test + Change the test script
  • Script to compile es6 to es5 using babel
  • Ability to pass options for the selectorTypes based on which the unique selector will be generated, see the options

• v0.0.4

  • Handle extra whitespace in className (#9)

• v0.0.3

  • Add support for various <form> elements (#2)

• v0.0.2

  • Fix bug with nth-child calculation

• v0.0.1

  • Initial release

MIT