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What is the difference between IEnumerator and IEnumerable? [duplicate]
...bject Current;
public void Reset();
public bool MoveNext();
example code from codebetter.com
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wpf: how to show tooltip when button disabled by command?
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It ensures that for any class inheriting from Control, tooltips are shown even if Control instance is disabled
– sacha barber
Jan 22 '19 at 18:24
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Regular expression to return text between parenthesis
...and the last closing parenthesis to get (a+b)/(c+d), because find searches from the left of the string, and would stop at the first closing parenthesis.
To fix that, you need to use rfind for the second part of the operation, so it would become
st[st.find("(")+1:st.rfind(")")]
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Can lambda functions be templated?
...l and stick to monomorphic lambdas.
However, with the removal of concepts from C++0x, polymorphic lambdas become a simple proposition again. However, I can't find any proposals for it. :(
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Trigger a keypress/keydown/keyup event in JS/jQuery?
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First of all, I need to say that sample from Sionnach733 worked flawlessly. Some users complain about absent of actual examples. Here is my two cents. I've been working on mouse click simulation when using this site: https://www.youtube.com/tv. You can open any vi...
Access Enum value using EL with JSTL
...value and cannot be validated by the compiler. So if you remove that value from the enum or rename it, you will not see that this part of code is not accessible anymore. You basically have to do a search/replace through the code each time.
You can add each of the enum values you use into the page co...
Cron jobs and random times, within given hours
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and in /path/to/bashscript:
#!/bin/bash
maxdelay=$((14*60)) # 14 hours from 9am to 11pm, converted to minutes
for ((i=1; i<=20; i++)); do
delay=$(($RANDOM%maxdelay)) # pick an independent random delay for each of the 20 runs
(sleep $((delay*60)); /path/to/phpscript.php) & # backgr...
Why does String.split need pipe delimiter to be escaped?
...escape. Now that I know why it's that way, it will surely help me remember from now on.
– sufinawaz
Nov 3 '14 at 21:10
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Incomplete type is not allowed: stringstream
...t itself include all the headers it needs, but not impossible.
For things from the standard library, such as the stringstream class, use the language standard or other reference documentation for the class or the individual functions (e.g. Unix man pages, MSDN library, etc.) to figure out what you ...
Example use of “continue” statement in Python?
...ion by zero can be avoided. I use it often when I need to store the output from programs, but dont want to store the output if the program has crashed. Note, to test the above example, replace the last statement with print 1/float(x), or you'll get zeros whenever there's a fraction, since randint re...