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saeidzebardast/observe-array-length.html

Created October 14, 2015 06:35
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Observe adding/removing elements of array in Polymer
Raw
observe-array-length.html
<script>
Polymer({
is: 'observe-array-length',
properties: {
myArray: {
type: Array,
value: []
}
},
observers: ['_myArrayChanged(myArray.length)'],
_myArrayChanged: function (myArrayLength) {
console.log('Your array length is changed to ' + myArrayLength);
}
});
</script>
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