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Check if a given key already exists in a dictionary
...ly key in dict.keys(). Try removing all code except for this check and see what your result is.
– Charles Addis
Jun 21 '16 at 21:34
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How to bind an enum to a combobox control in WPF?
...you should ask for that problem here on another question. This is the only what I can advice... Anyway, the showed example is correct.
– Kyrylo M
May 26 '11 at 23:15
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Copy a stream to avoid “stream has already been operated upon or closed”
...twice is cheap.
We did experiment in the design with "forked streams". What we found was that supporting this had real costs; it burdened the common case (use once) at the expense of the uncommon case. The big problem was dealing with "what happens when the two pipelines don't consume data at t...
How to sort an array of objects by multiple fields?
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I think this demo is what the OP wants => jsfiddle.net/zJ6UA/533
– Amin Jafari
Nov 24 '16 at 11:27
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Best practice for localization and globalization of strings and labels [closed]
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No offense but isn't this what Afshin already tried? He's problem is that different developers have difficulty remembering which keys to use. I agree with that your described method is the way to go. I don't see how it can be otherwise. Thanks for the...
How to merge a transparent png image with another image using PIL
...mi-transparent image on another, with PIL, and it worked as I expected. In what way doesn't it work as you expected?
– Peter Hansen
Jul 25 '13 at 17:27
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Using the star sign in grep
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The asterisk is just a repetition operator, but you need to tell it what you repeat. /*abc*/ matches a string containing ab and zero or more c's (because the second * is on the c; the first is meaningless because there's nothing for it to repeat). If you want to match anything, you need to sa...
How to escape text for regular expression in Java
... work by adding individual escapes, your initial example still wouldn't do what you wanted...if it escaped characters individually, it would turn *.wav into the regex pattern \*\.wav, and the replaceAll would turn it into \.*\.wav, meaning it would match files whose name consists of a arbitrary numb...
Retrieving a random item from ArrayList [duplicate]
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What exactly is being caught here? You should check if the list is empty or null, not use try catch
– OneCricketeer
Feb 10 '18 at 18:30
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JavaScript null check
...variable is declared. typeof in other situations can even be dangerous — what if you mistype the variable name? That can go undetected for a long time because there’s no error.
– Ry-♦
May 21 '13 at 14:55
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