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Form onSubmit determine which submit button was pressed [duplicate]

... Not in the submit event handler itself, no. But what you can do is add click handlers to each submit which will inform the submit handler as to which was clicked. Here's a full example (using jQuery for brevity) <html> &...
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Where does Git store the SHA1 of the commit for a submodule?

... It is stored in Git's object database directly. The tree object for the directory where the submodule lives will have an entry for the submodule's commit (this is the so-called "gitlink"). Try doing git ls-tree master <path-to-direct...
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How do I convert a Django QuerySet into list of dicts?

How can I convert a Django QuerySet into a list of dicts? I haven't found an answer to this so I'm wondering if I'm missing some sort of common helper function that everyone uses. ...
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Shortcuts in Objective-C to concatenate NSStrings

Are there any shortcuts to ( stringByAppendingString: ) string concatenation in Objective-C, or shortcuts for working with NSString in general? ...
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What is the optimal length for an email address in a database?

Here is an extracted portion of my query, reflecting the EMAIL_ADDRESS column data type and property: 8 Answers ...
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DefaultInlineConstraintResolver Error in WebAPI 2

I'm using Web API 2 and I'm getting the following error when I send a POST to my API method using IIS 7.5 on my local box. ...
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Why does comparing strings using either '==' or 'is' sometimes produce a different result?

... got a Python program where two variables are set to the value 'public' . In a conditional expression I have the comparison var1 is var2 which fails, but if I change it to var1 == var2 it returns True . ...
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Creating a segue programmatically

... By definition a segue can't really exist independently of a storyboard. It's even there in the name of the class: UIStoryboardSegue. You don't create segues programmatically - it is the storyboard runtime that creates them for yo...
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How to append rows to an R data frame

I have looked around StackOverflow, but I cannot find a solution specific to my problem, which involves appending rows to an R data frame. ...
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How to set a bitmap from resource

This seems simple, I am trying to set a bitmap image but from the resources, I have within the application in the drawable folder. ...