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What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?
Some Git commands take commit ranges and one valid syntax is to separate two commit names with two dots .. , and another syntax uses three dots ... .
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What is the difference between self::$bar and static::$bar in PHP?
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go to phpfiddle.org and run this <?php class Foo { public static $bar = 1234; public static function a( ) { echo 'static'.static::$bar; echo 'self'.self::$bar; } } class Bar extends Foo { public...
What happens to global and static variables in a shared library when it is dynamically linked?
...l cases, static global variables (or functions) are never visible from outside a module (dll/so or executable). The C++ standard requires that these have internal linkage, meaning that they are not visible outside the translation unit (which becomes an object file) in which they are defined. So, tha...
How to concatenate and minify multiple CSS and JavaScript files with Grunt.js (0.3.x)
...s happen because they erase the requirejs syntatic ritual in order to get rid of requirejs in their code. So they end up with a standalone library that was developed with requirejs modules! Thanks to this they are able to perform cutsom builds of their libraries, among other advantages.
For all th...
How to load/edit/run/save text files (.py) into an IPython notebook cell?
...'ve not been successful in finding a way to import .py files into the individual cells of an open IPython notebook so that they can edited, run and then saved. Can this be done?
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How to pass the values from one activity to previous activity
...nt resultIntent = new Intent();
resultIntent.putExtra(PUBLIC_STATIC_STRING_IDENTIFIER, enteredTextValue);
setResult(Activity.RESULT_OK, resultIntent);
finish();
The final step is in the calling Activity: Override onActivityResult to listen for callbacks from the text entry Activity. Get the extra ...
while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
...loops in perl: while (1) Vs. for (;;) Is there a speed difference? , I decided to run a similar comparison in python. I expected that the compiler would generate the same byte code for while(True): pass and while(1): pass , but this is actually not the case in python2.7.
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How to make Git pull use rebase by default for all my repositories?
...out branch.autosetuprebase , but it needs to be configured per clone individually.
5 Answers
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Curly braces in string in PHP
... syntax. Simply write the
expression the same way as it would appear outside the string, and
then wrap it in { and }. Since { can not be escaped, this syntax
will only be recognised when the $ immediately follows the {. Use
{\$ to get a literal {$. Some examples to make it clear:
<?php
/...
Are non-synchronised static methods thread safe if they don't modify static class variables?
...les is it thread-safe? What about if the method creates local variables inside it? For example, is the following code thread-safe?
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