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How can I clear previous output in Terminal in Mac OS X?
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To clear the terminal manually:
⌘+K
Command+K for newer keyboards
To clear the terminal from within a shell script;
/usr/bin/osascript -e 'tell application "System Events" to tell process "Terminal" to keystroke "k" using command down'
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How can I check if an element exists in the visible DOM?
...f the browser's selecting method, and checking it for a truthy value (generally).
For example, if my element had an id of "find-me", I could simply use...
var elementExists = document.getElementById("find-me");
This is specified to either return a reference to the element or null. If you must ha...
What is the difference between an expression and a statement in Python?
...s, where operators include arithmetic and boolean operators, the function call operator () the subscription operator [] and similar, and can be reduced to some kind of "value", which can be any Python object. Examples:
3 + 5
map(lambda x: x*x, range(10))
[a.x for a in some_iterable]
yield 7
Stat...
Is it possible to disable scrolling on a ViewPager
...d buttons momentarily while a search result is returned to the view. I've calling viewPager.setEnabled(false) but this doesn't disable it.
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How to iterate through SparseArray?
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Take sparseArray.size() in one variable so it will not call size() every time.
– Pratik Butani
Oct 26 '16 at 4:37
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Free FTP Library [closed]
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THANK YOU!!! This really works very well! it lists directory with correct date time :)))) and its fast! sample code: FtpClient ftp = new FtpClient(txtUsername.Text, txtPassword.Text, txtFTPAddress.Text); FtpListItem[] items = ftp.Ge...
Any idea why I need to cast an integer literal to (int) here?
...In general, you should not cast to Integer class. This involves something called auto-boxing, and can cause some subtle errors in your code.
The prefered method of doing what you want is:
Integer i6 = Integer.valueOf(-128)
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C++0x lambda capture by value always const?
...value non-const? I have a library functor that I would like to capture & call a method that is non-const but should be.
2 ...
Taking screenshot on Emulator from Android Studio
...when I changed the default Desktop location to my Pictures library. Before all looked fine, but it didn't save the screenshot
– lvmeijer
Feb 11 '19 at 2:30
add a comment
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Align labels in form next to input
...technology has made for what I think is a better solution. CSS Grid Layout allows us to structure a more elegant solution.
The CSS below provides a 2-column "settings" structure, where the first column is expected to be a right-aligned label, followed by some content in the second column. More comp...