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//important links
http://www.bennadel.com/blog/2852-understanding-how-to-use-scope-watch-with-controller-as-in-angularjs.htm
http://fdietz.github.io/recipes-with-angular-js/controllers/responding-to-scope-changes.html
https://docs.angularjs.org/api/ng/type/$rootScope.Scope#$watch
$watch
$watch
//this is the value we are watching
vm.fooCount =0;
<html>
<head>
<script src="http://code.angularjs.org/1.2.13/angular.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.8/angular-ui-router.min.js"></script>
</head>
---------
index.html
-----
<html>
<head>
<script src="http://code.angularjs.org/1.2.13/angular.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.8/angular-ui-router.min.js"></script>
<html>
<head>
<link rel="stylesheet" href="bower_components/angular-chart.js/dist/angular-chart.css">
<script src="bower_components/angular/angular.min.js"></script>
<script src="bower_components/Chart.js/Chart.min.js"></script>
<script src="bower_components/angular-chart.js/dist/angular-chart.min.js"></script>
</script>
class MyDict(dict):
def __init__(self):
self=dict()
def addItem(self,key,value):
if key in self:
self[key] +=value
var input = document.getElementById('input');
input.addEventListener('change', handleFiles);
function handleFiles(e) {
var ctx = document.getElementById('canvas').getContext('2d');
//first imagess
var input = document.getElementById('input');
alert(input.files.length);
var input = document.getElementById('input');
input.addEventListener('change', handleFiles);
function handleFiles(e) {
var ctx = document.getElementById('canvas').getContext('2d');
//first imagess
var input = document.getElementById('input');
alert(input.files.length);
var input = document.getElementById('input');
input.addEventListener('change', handleFiles);
function handleFiles(e) {
var ctx = document.getElementById('canvas').getContext('2d');
//first imagess
var input = document.getElementById('input');
alert(input.files.length);
<div id="imagesDiv" class="rounded">
<label for="chooseFiles">Add Images</label>
<input type="file" id="chooseFiles" multiple="multiple" />
<table id="previewTable">
<thead id="columns"></thead>
<tbody id="previews"></tbody>
</table>
</div>
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