How to validate image File using Angular-js
Question
am using angular-js for image file validation. i want to find out "is it image File or not"..here am compare the extension of file to identify the file is correct or not..
but my code is not work!..it doesn't show any error. am literally confused
anyone have the answers command here!..
Thanks in advance!
my Code is
<HTML>
<HEAD>
<TITLE>Validate image on upload</TITLE>
<script src = "angular.min.js"></script>
<body>
<center>
<div ng-app="prabhu" ng-controller="mycontroller">
Upload an image: <INPUT type="file" name="image_file" ng-model="fil.name">
//<h1>the file is {{val.validate())}}</h1>
<p ng-bind="val.validate()"> <p>
</div>
</center>
<script >
var myapp = angular.module("prabhu",[]);
myapp.controller("mycontroller",function($scope){
$scope.val={
ref = ['jpg','jpeg','png'],
validate:function(){
name = fil.name | lowercase;
length = name.length();
ext = name.LastIndexOf(".")+1;
ext1 = name.substring(ext,length);
//k = 0;
for (k=0 ; k <= 4;k++){
if(ref[k]==ext1){
return "valid File Format";
}
//else
// return "invalid File Format";
}
return "invalid File Format";
}
};
});
</script>
</BODY>
</HTML>
2 answers
solution1
4 2015-10-27 06:29:34
As far as I know, no binding support for File Upload control.
HTML:
<input type="file" ng-model="image" onchange="angular.element(this).scope().uploadImage(this.files)" />
In controller:
$scope.uploadImage = function (files) {
var ext = files[0].name.match(/\.(.+)$/)[1];
if(angular.lowercase(ext) ==='jpg' || angular.lowercase(ext) ==='jpeg' || angular.lowercase(ext) ==='png'){
alert("Valid File Format");
}
else{
alert("Invalid File Format");
}
}
solution2
2 2015-10-27 08:55:48
my requirement is to select image files only!.
Try using accept attribute at input type="file" element
<input type="file" accept="image/*" />
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