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htmlentities() vs. htmlspecialchars()
What are the differences between htmlspecialchars() and htmlentities() . When should I use one or the other?
12 Answers
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CSS hide scroll bar if not needed
I am trying to figure out how I can hide the overflow-y:scroll; if not needed. What I mean is that I am building a website and I have a main area which posts will be displayed and I want to hide the scroll bar if content does not exceed the current width.
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What is the “volatile” keyword used for?
...The compiler will then avoid any optimisations that may result in problems if the variable changes "outside of its control".
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differentiate null=True, blank=True in django
... will be required in forms. This includes the admin and your custom forms. If blank=True then the field will not be required, whereas if it's False the field cannot be blank.
The combo of the two is so frequent because typically if you're going to allow a field to be blank in your form, you're goin...
Why check both isset() and !empty()
Is there a difference between isset and !empty . If I do this double boolean check, is it correct this way or redundant? and is there a shorter way to do the same thing?
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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
...and with $! you get the PID of the last command launched in background.
Modify the loop to store the PID of each spawned sub-process into an array, and then loop again waiting on each PID.
# run processes and store pids in array
for i in $n_procs; do
./procs[${i}] &
pids[${i}]=$!
done
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How to filter specific apps for ACTION_SEND intent (and set a different text for each app)
How can you filter out specific apps when using the ACTION_SEND intent? This question has been asked in various ways, but I haven't been able to gather a solution based on the answers given. Hopefully someone can help. I would like to provide the ability to share within an app. Following Android ...
Detect the Enter key in a text input field
I'm trying to do a function if enter is pressed while on specific input.
10 Answers
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Android: I am unable to have ViewPager WRAP_CONTENT
...measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
int h = child.getMeasuredHeight();
if(h > height) height = h;
}
if (height != 0) {
heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
}
super.on...
What's the scope of the “using” declaration in C++?
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But if you put the using declaration inside a namespace it's limited to the scope of that namespace, so is generally OK (with the usual caveats on your particular needs and style).
– Zero
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