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Check if PHP session has already started
...art() on this script I sometimes get the error message for "session already started". For that I've put these lines:
26 An...
What's this =! operator? [duplicate]
I was surprised by this code:
13 Answers
13
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Scrolling child div scrolls the window, how do I stop that?
I have a div, with a scroll bar, When it reaches the end, my page starts scrolling. Is there anyway I can stop this behavior ?
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Displaying a message in iOS which has the same functionality as Toast in Android
I need to know if there is any method in iOS which behaves like Toast messages in Android. That is, I need to display a message which is dismissed automatically after few seconds. This is similar to the functionality of the Toast class in the Android environment.
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Get current time in seconds since the Epoch on Linux, Bash
... Doesn't work for me. man date does not show %s. I must have a very old version of bash (3.2.51(1) for Solaris)?
– livefree75
Jan 28 '14 at 20:32
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How to filter object array based on attributes?
I have the following JavaScript array of real estate home objects:
16 Answers
16
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JavaScript style for optional callbacks
I have some functions which occasionally (not always) will receive a callback and run it. Is checking if the callback is defined/function a good style or is there a better way?
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What APIs are used to draw over other apps (like Facebook's Chat Heads)?
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This one:
Allows an application to open windows using the type
TYPE_SYSTEM_ALERT, shown on top of all other applications.
Very few applications should use this permission; these windows are intended
for system-level interaction with the user.
Constant Value: "android.perm...
Aborting a shell script if any command returns a non-zero value?
...es a number of commands.
I would like to have the shell script automatically exit with a return value of 1 if any of the commands return a non-zero value.
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Didn't Java once have a Pair class? [duplicate]
Am I remembering incorrectly, or did Java, once upon a time, provide a Pair class as part of its API?
10 Answers
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