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How to break out from a ruby block?
...reak(something) works but true && break(somehting) yields a syntax error. Just FYI. If condition is needed, then if or unless needs to be used.
– akostadinov
Oct 27 '16 at 15:53
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How to go up a level in the src path of a URL in HTML?
...g.
NOTE: If you are using Chrome, it may doesn't work and you will get an error that the file could not be found. I had the same problem, so I just deleted the entire cache history from chrome and it worked.
share
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Is there a way to change the environment variables of another process in Unix?
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On some systems gdb may give the following error: 'putenv' has unknown return type; cast the call to its declared return type; in those cases you should change putenv call to this: call (int) putenv ("env_var_name=env_var_value")
– Emir Uner
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Escape a string for a sed replace pattern
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thanks! if anyone else gets syntax error when trying to use it, just like me, just remember to run it using bash, not sh
– Konstantin Pereiaslov
Apr 8 '13 at 18:56
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What does && mean in void *p = &&abc;
... printf("startp=%p\n", startp);
return 0;
}
In which case GCC says:
error: label ‘a’ used but not defined
Under the hood - assembly
You need to know assembler to really understand this, but I'll try to explain you what an address of a label means.
After the OS loads the .exe file from th...
How to simulate target=“_blank” in JavaScript
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IE11: "Runtime Javascript error: not a valid action for the object"
– T-moty
Apr 1 '16 at 13:30
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Search for “does-not-contain” on a DataFrame in pandas
...ontains also accepts a regular expression...
If the above throws a ValueError, the reason is likely because you have mixed datatypes, so use na=False:
new_df = df[~df["col"].str.contains(word, na=False)]
Or,
new_df = df[df["col"].str.contains(word) == False]
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How to loop through files matching wildcard in batch file
... Also, be aware that the %%f variable must be a single letter - cryptic error messages will appear if you try to use something readable and meaningful.
– Bruce Dawson
Jan 29 '17 at 5:39
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Static Indexers?
...nd getter method on a default property results in ilasm complaining syntax error at token 'static'; I'm not great at meddling in the affairs of IL but that sounds like at least an initial no.
– Amazingant
Mar 24 '15 at 19:06
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How to use arguments from previous command?
...eroth.
This is a synonym for ‘1-$’.
It is not an error to use * if there is just one word in
the event; the empty string is returned in that case.
x* Abbreviates x-$.
x- Abbreviates x-$ like x*, but omits the last word.
If a word designator is su...