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How to turn NaN from parseInt into 0 for an empty string?
...pending on lodash for other stuff, there's a handy defaultTo function that does just this: _.defaultTo(NaN, -1) returns -1, but _.defaultTo(0, -1); returns 0.
– waldyrious
Dec 6 '18 at 12:40
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/etc/apt/sources.list" E212: Can't open file for writing
...ile you can "open" non-existing file and then create it by saving it, this doesn't work with non-existing directory. And now I know about the Vim's built-in help system! :)
– Dom Delimar
Nov 10 '12 at 16:38
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jquery disable form submit on enter
I have the following javascript in my page which does not seem to be working.
18 Answers
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How to get maximum value from the Collection (for example ArrayList)?
...n max;
}
From my understanding, this is basically what Collections.max() does, though they use a comparator since lists are generic.
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How do I get both STDOUT and STDERR to go to the terminal and a log file?
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echo test_stdout
# Test redirection of STDERR
ls test_stderr___this_file_does_not_exist
(Note: This only works with Bash. It will not work with /bin/sh.)
Adapted from here; the original did not, from what I can tell, catch STDERR in the logfile. Fixed with a note from here.
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Passing a 2D array to a C++ function
...east 10 columns, even then row count is required. In any case the compiler doesn't flag for any length/size violations (it only checks if the type passed is a pointer to pointer), hence requiring both row and column counts as parameter makes sense here.
Note: (4) is the least safest option since it ...
How to convert milliseconds into human readable form?
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It does not work correctly. Should use parseInt when using the divisor otherwise you will see long float values. See my answer below for a more comprehensive solution.
– Rajiv
Oct 31 '12 at...
How can I get the list of a columns in a table for a SQLite database?
...the latest release of SQLite (3.6, I believe). I am looking for code that does this with a SQL query. Extra bonus points for metadata related to the columns (e.g. length, data type, etc...)
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“Variable” variables in Javascript?
... possible to access some global variables dynamically via window, but that doesn't work for variables local to a function. Global variables that do not become a property of window are variables defined with let and const, and classes.
There is almost always a better solution than using variable var...
How to pass parameters to the DbContext.Database.ExecuteSqlCommand method?
...arameters in my sql statement. The following example (not my real example) doesn't work.
14 Answers
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