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Iterate through options
I have a <select> element in HTML. This element represents a drop down list. I'm trying to understand how to iterate through the options in the <select> element via JQuery.
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How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
... in which you're making the UPDATE. dev.mysql.com/doc/refman/5.7/en/update.html
– artaxerxe
Dec 9 '15 at 7:47
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Whether a variable is undefined [duplicate]
...d' for an empty selection. It always returns an empty string (i.e. ""). .html() will return null if the element doesn't exist though.You need to do:
if(page_name != '')
For other variables that don't come from something like jQuery.val() you would do this though:
if(typeof page_name != 'undefi...
How do I put hint in a asp:textbox
...pears when the user clicks on it. Is there a way to achieve the same using html / css?
5 Answers
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json.dumps vs flask.jsonify
...umps(dict)", then the recipient will just get a regular "content-type:text/html" response with the json.dumps output as the payload.
– SamEsla
Aug 19 '16 at 22:11
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What is the !! (not not) operator in JavaScript?
...ant to write a function that returns true if a user's browser supports the HTML5 <audio> element, but we don't want the function to throw an error if <audio> is undefined; and we don't want to use try ... catch to handle any possible errors (because they're gross); and also we don't want...
What is http multipart request?
...in files, non-ASCII data, and binary data. ORIGINAL SOURCE - w3.org/TR/html401/interact/forms.html#h-17.13.4.2
– Aditya Aggarwal
Nov 5 '15 at 7:55
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How to convert JSON to XML or XML to JSON?
...deConverter class in JSON.NET 3.5: james.newtonking.com/projects/json/help/html/…
– David Brown
May 2 '09 at 20:01
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What is event bubbling and capturing?
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Event bubbling and capturing are two ways of event propagation in the HTML DOM API, when an event occurs in an element inside another element, and both elements have registered a handle for that event. The event propagation mode determines in which order the elements receive the event.
With bu...
AngularJS validation with no enclosing
...g-form angular directive (see docs here) to group anything, even outside a html form. Then, you can take advantage from angular FormController.
<div class="form-group" ng-form name="myForm">
<input name="myInput" type="text" class="form-control" ng-model="bindTo" ng-maxlength="5">
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