大约有 4,761 项符合查询结果（耗时：0.0178秒） [XML]
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
...
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 ?
...
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.
...
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
...
How to filter object array based on attributes?
I have the following JavaScript array of real estate home objects:
16 Answers
16
...
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?
...
What APIs are used to draw over other apps (like Facebook's Chat Heads)?
...
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.
...
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
...