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Fastest way to check if a string is JSON in PHP?
...ray. Valid JSON values may be objects, arrays, numbers, strings, booleans, and null.
– zzzzBov
May 8 '15 at 1:30
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show 17 more comments
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Should have subtitle controller already set Mediaplayer error Android
...ying a music (or other source), it checks if there is a SubtitleController and shows this message if it's not set.
It doesn't seem to care about if the source you want to play is a music or video. Not sure why he did that.
Short answer: Don't care about this "Exception".
Edit :
Still present in...
C#: how to get first char of a string?
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The difference between this answer and the chosen one is that this solution returns a string, and the other returns a char.
– Loïc Lopes
Sep 6 '17 at 14:51
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Enter “&” symbol into a text Label in Windows Forms?
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Two ways:
Escape it with another ampersand (&&).
Set UseMnemonic for that label to false. This causes all ampersands within the text to be taken literally so you don't need to double any of them. You'll lose the underlining and access key features though.
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relative path in BAT script
...sewhere (XP, Vista oder Windwos 8 --> I don't know but: Microsoft logic and I couldn't find any docs about it ;)). However, I found that I had to put quotation marks around it ("%~dp0\bin\Iris.exe") as the path had a whitespace in it :) Just to be really sure it works on every computer.
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xpath find if node exists
...probably ask that as a new question at SO, but as a quick guide: html/body and not(html/body/node()) (i.e., just test if it exists and it does not contain any child nodes, or text nodes).
– Abel
Sep 6 '15 at 11:30
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How to tell whether a point is to the right or left side of a line
...o separate them into 2 distinct sets. To do this, I choose two points ( a and b ) and draw an imaginary line between them. Now I want to have all points that are left from this line in one set and those that are right from this line in the other set.
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Run an Application in GDB Until an Exception Occurs
I'm working on a multithreaded application, and I want to debug it using GDB.
4 Answers
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How do I change the cursor between Normal and Insert modes in Vim?
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A popular option to indicate switching to and from Insert mode is
toggling the cursorline option, which is responsible for whether
the current screen line is highlighted (see :help cursorline):
:autocmd InsertEnter,InsertLeave * set cul!
or, alternatively:
:autocmd ...
Get screen width and height in Android
How can I get the screen width and height and use this value in:
29 Answers
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