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What is the difference between 'E', 'T', and '?' for Java generics?
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Well there's no difference between the first two - they're just using different names for the type parameter (E or T).
The third isn't a valid declaration - ? is used as a wildcard which is used when providing a type argument, e.g. List<?...
Print PHP Call Stack
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If you want to generate a backtrace, you are looking for debug_backtrace and/or debug_print_backtrace.
The first one will, for instance, get you an array like this one (quoting the manual) :
array(2) {
[0]=>
array(4) {
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jQuery: Select data attributes that aren't empty?
...18) (mar'19) (may'20)...
Answer that works with:
Empty strings:
If the attr must exist & could have any value (or none at all)
jQuery("[href]");
Missing attributes:
If attr could exist & if exist, must have some value
jQuery("[href!='']");
Or both:
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What does an Asterisk (*) do in a CSS selector?
... it will select all elements within that portion of the DOM.
For example, if I want apply margin to every element on my entire page you can use:
* {
margin: 10px;
}
You can also use this within sub-selections, for example the following would add a margin to all elements within a paragraph ta...
Is there a portable way to get the current username in Python?
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That does not work if you've done a su. $ echo $USER hithwen $ su julia Password: $ echo $USER julia $ python >>> import getpass >>> getpass.getuser() 'hithwen'
– hithwen
Jan 23 '13 at 9:...
Why (0-6) is -6 = False? [duplicate]
...s sharing the same address with CPython, thus the is test passes.
This artifact is explained in detail in http://www.laurentluce.com/posts/python-integer-objects-implementation/, and we could check the current source code in http://hg.python.org/cpython/file/tip/Objects/longobject.c.
A specific...
Prevent double curly brace notation from displaying momentarily before angular.js compiles/interpola
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I don't think this will work if you load all scripts at the end of the body.
– trusktr
Apr 17 '14 at 17:27
8
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Using CSS to insert text
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If the text is part of the page layout and not part of the content, maybe the CSS is the right place for it. For example if you wanted your page heading across all pages to be the words "Hello World" in purple on a lime gree...
How to automatically navigate to the current class in Intellij Idea Project Tool Window?
...tl-F1 to show the Gnome Activities Overview by default (which is redundant if you have a Windows/Cmd key on your keyboard). Just go into Settings > Keyboard > "Show the activities overview", click and then hit Backspace to clear the keyboard mapping. Then it will work.
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Twitter Bootstrap Button Text Word Wrap
For the life of me I am unable to get these twitter bootstrap buttons to text wrap onto multiple lines, they appearing like so.
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