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How to Iterate over a Set/HashSet without an Iterator?
...accessing the underlying structure that holds the data through reflection, and replicating the code provided by Set#iterator...
– assylias
Sep 17 '12 at 8:46
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Is there a standard function to check for null, undefined, or blank variables in JavaScript?
...re a universal JavaScript function that checks that a variable has a value and ensures that it's not undefined or null ? I've got this code, but I'm not sure if it covers all cases:
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Best way to add “current” class to nav in Rails 3
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Your way suit best when there are some pages handled by different controller / actions but in the same menu item, right? Have you encountered more advantages~?
– PeterWong
Sep 15 '10 at 2:39
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how to remove css property using javascript?
...whatever follows from the definitions set in the stylesheets (through link and style tags). So this syntax will only modify the local style of this element.
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converting a base 64 string to an image and saving it
... This is an excellent solution in my case where I was using mono on Linux and experienced some odd behavior with gdi+ in Image.Save. This solution completely bypasses Image / Gdi+ (See stackoverflow.com/questions/35783690/…)
– Jeff Albrecht
Mar 4 '16 at 4:18...
source command not found in sh shell
...hat uses sh shell. I get an error in the line that uses the source command. It seems source is not included in my sh shell.
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Uint8Array to string in Javascript
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TextEncoder and TextDecoder from the Encoding standard, which is polyfilled by the stringencoding library, converts between strings and ArrayBuffers:
var uint8array = new TextEncoder("utf-8").encode("¢");
var string = new TextDecoder("...
new Date() works differently in Chrome and Firefox
...x epoch, or use a regular expression to break the string down in its parts and then feed those into Date.UTC.
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python list in sql query as parameter
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@bobince in my case I have assigned a variable a='john' and b='snow' and stored it in a tuple with the name got=['a,b'] and did performed the same query. Doing this I got the erroy i.e. Type Error: not all arguments converted during string formatting. How am I supposed to solbe i...
if/else in a list comprehension
...x in row]
In general,
[f(x) if condition else g(x) for x in sequence]
And, for list comprehensions with if conditions only,
[f(x) for x in sequence if condition]
Note that this actually uses a different language construct, a conditional expression, which itself is not part of the comprehensi...