firstkey

Returns the first key found on an object from a list of keys

Usage no npm install needed!

<script type="module">
  import firstkey from 'https://cdn.skypack.dev/firstkey';
</script>

README

firstKey Build Status

Returns the first key found on an object from a list of keys

Example

    var obj = {
        word1: 'The',
        word2: 'quick',
        word5: 'jumped',
        word8: 'lazy'
    },
    
    key = firstKey(obj, 'word3', 'word5', 'word7');  // First key found is 'word5'

Pull the first property from a dom node that exists and reuse that property

  • Choosing the text property to use

     var div = document.createElement('div'),
     text = firstKey(div, 'textContent', 'innerText', 'innerHTML');
     
 div[text] = 'Let\'s use the best property for setting the text';

  • Identifying the vendor-specific property to use, so that you don't set them all needlessly

     var divElement = document.createElement('div'),
 
 transformProperty = firstKey(
     divElement.style,
     'transform',
     'webkitTransform',
     'MozTransform',
     'oTransform',
     'msTransform');

 transformOriginProperty = firstKey(
     divElement.style,
     'transformOrigin',
     'webkitTransformOrigin',
     'MozTransformOrigin',
     'oTransformOrigin',
     'msTransformOrigin');

Installation

npm install firstkey

Contributors

  • Matt-Esch

MIT Licenced