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What's the difference between an id and a class?
...rial.
You should refer to the W3C standards if you want to be a strict conformist, or if you want your pages to be validated to the standards.
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What does “all” stand for in a makefile?
...ypically defined as a .PHONY target that depends on the executable(s) that form the entire program:
.PHONY : all
all : executable
To achieve 2 all should either be the first target defined in the make file or be assigned as the default goal:
.DEFAULT_GOAL := all
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Merge Images Side by Side(Horizontally)
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that can be added to a Thunar custom action in this form (ex. to join vertically = up-town):convert -append %F joined-image.png . All selected images will be joined as one png in alphabetical order
– user4098390
Mar 5 '17 at 10:53
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Using PHP with Socket.io
...'host':host,'Content-Length':clen.length,'Content-Type':'application/x-www-form-urlencoded'});
request.write('userid=' + userid);
request.end();
Seriously, PHP is great for doing server side stuff and let it be with the connections it has no place in this domain now. ...
Rails detect if request was AJAX
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If you're using :remote => true in your links or forms, you'd do:
respond_to do |format|
format.js { #Do some stuff }
You can also check before the respond_to block by calling request.xhr?.
sha...
Generate full SQL script from EF 5 Code First Migrations
...ase tables from your entity classes (provided your entity classes are well formed).
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CocoaPods - use specific pod version
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Use platform :ios, '8.0'. It will automatically install the previous one which will run on this platform
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Why is “if not someobj:” better than “if someobj == None:” in Python?
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The second form is categorically not bad practice. PEP 8 recommends using if x twice. First for sequences (instead of using len) and then for True and False (instead of using is). Practically all Python code I've seen uses if x and if ...
Validate uniqueness of multiple columns
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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Java unchecked: unchecked generic array creation for varargs parameter
...y other methods because determining that there are no unsafe operations performed on it might not be trivial.
– neXus
Nov 10 '17 at 14:29
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