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How do I exchange keys with values in a dictionary?
... long as a dict isn't modified). but this answer needs call my_dict twice(one for values, one for keys). maybe this is not ideal.
– sunqiang
Jul 6 '09 at 16:39
4
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How best to determine if an argument is not sent to the JavaScript function
... if an argument has been passed to a JavaScript function. I'm wondering if one method is better than the other or if one is just bad to use?
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Putting a simple if-then-else statement on one line [duplicate]
...ere an easier way of writing an if - then - else statement so it fits on one line?
5 Answers
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Input placeholders for Internet Explorer
... "Web Forms : input placeholder" section of HTML5 Cross Browser Polyfills, one I saw was jQuery-html5-placeholder.
I tried the demo out with IE9, and it looks like it wraps your <input> with a span and overlays a label with the placeholder text.
<label>Text:
<span style="position:...
Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]
... complex.
Shells provide an infrastructure that lets us use pre-built components that are linked together at run time rather than compile time. Those components are free-standing programs in their own right that can be used alone or in other combinations without recompiling. The syntax for calling ...
What is an ORM, how does it work, and how should I use one? [closed]
Someone suggested I use an ORM for a project that I'm designing, but I'm having trouble finding information on what it is or how it works.
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Rake just one migration
I'm trying to run just one migration out of a whole bunch in my rails app. How can I do this? I don't want to run any of the migrations before or after it. Thanks.
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How can I add a box-shadow on one side of an element?
...e way I do it is to wrap the inner element with box-shadow into an outer one with padding-right and overflow:hidden; so the three other sides of the shadow are not visible.
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Regular vs Context Free Grammars
I'm studying for my computing languages test, and there's one idea I'm having problems wrapping my head around.
8 Answe...
Abusing the algebra of algebraic data types - why does this work?
...lgebraic' expression for algebraic data types looks very suggestive to someone with a background in mathematics. Let me try to explain what I mean.
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