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How do you check that a number is NaN in JavaScript?
... in specs tc39.github.io/ecma262/#sec-isnan-number
– allsyed
Jul 11 '16 at 5:43
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isNaN(parseFloa...
How do you know a variable type in java?
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I just figured that was what the OP was really looking for since the declaration of a is pretty obvious at compile time
– Martin
Apr 20 '10 at 11:22
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How do you check if a certain index exists in a table?
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Actually.. be careful! This will fail if the index doesn't already exist! At least in SQL Server 2008.
– Andrey Kaipov
Apr 10 '17 at 19:12
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How to apply shell command to each line of a command output?
...es the input is read properly. From the man page of xargs:
-L number
Call utility for every number non-empty lines read.
A line ending with a space continues to the next non-empty line. [...]
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Git stash pop- needs merge, unable to refresh index
...hor did was:
julita@yulys:~/GNOME/baobab/help/C$ git reset --hard origin/mallard-documentation
HEAD is now at ff2e1e2 Add more steps for optional information for scanning.
I.e aborting the current merge completely, allowing the git stash pop to be applied.
See "Aborting a merge in Git".
Those ar...
Bootstrap control with multiple “data-toggle”
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That is actually the best approach because it defers the concern of presentation to the presentation layer.
– LastTribunal
Feb 4 '15 at 16:39
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Regex (grep) for multi-line search needed [duplicate]
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Without the need to install the grep variant pcregrep, you can do multiline search with grep.
$ grep -Pzo "(?s)^(\s*)\N*main.*?{.*?^\1}" *.c
Explanation:
-P activate perl-regexp for grep (a powerful extension of regular expressions)
-z suppress...
scrollIntoView Scrolls just too far
... page where a scroll bar containing table rows with divs in them is dynamically generated from the database. Each table row acts like a link, sort of like you'd see on a YouTube playlist next to the video player.
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UIActionSheet cancel button strange behaviour
...s bug some more, and it seems to be an issue with the tabbar.
If you call UIActionSheet's [sheet showInView:self.view] from a view controller that is a child of a UITabViewController, then the hit testing on the cancel button fails in that portion of the UIActionSheet that lies above the tabbar...
Error 5 : Access Denied when starting windows service
...essage when something faulted the service. Check the Event Viewer (specifically the 'Windows Logs > Application') for the real error message.
In my case, it was a bad service configuration setting in app.config.
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