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How to check file MIME type with javascript before upload?
... which seems to suggest that the file MIME type could be checked using javascript on client side. Now, I understand that the real validation still has to be done on server side. I want to perform a client side checking to avoid unnecessary wastage of server resource.
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How to check if an object is an array?
...
The method given in the ECMAScript standard to find the class of Object is to use the toString method from Object.prototype.
if( Object.prototype.toString.call( someVar ) === '[object Array]' ) {
alert( 'Array!' );
}
Or you could use typeof to te...
HTML Entity Decode [duplicate]
How do I encode and decode HTML entities using JavaScript or JQuery?
17 Answers
17
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Authorize a non-admin developer in Xcode / Mac OS
...erge' instead of 'append' if you add this line to a continuous integration script. Merge will not add it if it already exists. See 'man dscl' for more details.
– Russ Van Bert
Apr 24 '14 at 6:49
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AJAX Mailchimp signup form integration
...lue="Submit" />
</form>
<div id="message"></div>
<script src="jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#signup').submit(function() {
$("#message").html("<span class='error...
Populate a Razor Section From a Partial
My main motivation for trying to do this is to get Javascript that is only required by a partial at the bottom of the page with the rest of the Javascript and not in the middle of the page where the partial is rendered.
...
AngularJS - pass function to directive
...st color1="color1" update-fn="updateFn"></test>
</div>
<script>
angular.module('dr', [])
.controller("testCtrl", function($scope) {
$scope.updateFn = function(msg) {
alert(msg);
}
})
.directive('test', function() {
return {
scope:...
Why does isNaN(“ ”) (string with spaces) equal false?
In JavaScript, why does isNaN(" ") evaluate to false , but isNaN(" x") evaluate to true ?
23 Answers
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How to set value of input text using jQuery
...l need to verify in your browser's error console that you don't have other script errors causing this to fail. The first example above works correctly in this demonstration.
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Clearing using jQuery
....wrap('<form>').closest('form').get(0).reset();
e.unwrap();
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form>
<input id="file" type="file">
<br>
<input id="text" type="text" value="Original">
</fo...