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Makefile, header dependencies

...are using a GNU compiler, the compiler can assemble a list of dependencies for you. Makefile fragment: depend: .depend .depend: $(SRCS) rm -f ./.depend $(CC) $(CFLAGS) -MM $^ -MF ./.depend; include .depend or depend: .depend .depend: $(SRCS) rm -f ./.depend $(...
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How to save an HTML5 Canvas as an image on a server?

...e'; context.stroke(); </script> Convert canvas image to URL format (base64) var dataURL = canvas.toDataURL(); Send it to your server via Ajax $.ajax({ type: "POST", url: "script.php", data: { imgBase64: dataURL } }).done(function(o) { ...
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Why does calling a function in the Node.js REPL with )( work?

... which is ultimately as: (hi)() The additional parenthesis are added to force it to be an Expression: // First we attempt to eval as expression with parens. // This catches '{a : 1}' properly. self.eval('(' + evalCmd + ')', // ... The intent is to treat {...} as Object literals/ini...
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jQuery Validate Plugin - Trigger validation of single field

I've got a form that can optionally be pre-populated via facebook connect. Once a user connects, their name and email are automatically filled in. The problem is that this doesn't trigger the remote validation to check if the email already exists. ...
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How do you install Boost on MacOS?

How do you install Boost on MacOS? Right now I can't find bjam for the Mac. 10 Answers ...
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Get fully qualified class name of an object in Python

For logging purposes I want to retrieve the fully qualified class name of a Python object. (With fully qualified I mean the class name including the package and module name.) ...
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How do I set a textbox's text to bold at run time?

I'm using Windows forms and I have a textbox which I would occassionally like to make the text bold if it is a certain value. ...
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Python None comparison: should I use “is” or ==?

...r() print thing == None #True print thing is None #False is checks for object identity. There is only 1 object None, so when you do my_var is None, you're checking whether they actually are the same object (not just equivalent objects) In other words, == is a check for equivalence (which ...
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unit testing of private functions with mocha and node.js

I am using mocha in order to unit test an application written for node.js 9 Answers 9 ...
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Using the HTML5 “required” attribute for a group of checkboxes?

When using the newer browsers that support HTML5 (FireFox 4 for example); and a form field has the attribute required='required' ; and the form field is empty/blank; and the submit button is clicked; the browsers detects that the "required" field is empty and does not submit the form; ins...