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Tab Vs Space preferences in Vim
...hitespace to be inserted when you press the Tab key in insert mode. If expandtab is on, the tab key inserts softtabstop number of space characters. Whereas with expandtab switched off, pressing the Tab key inserts a the smallest possible number of tab+space characters that matches softtab...
How can jQuery deferred be used?
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The best use case I can think of is in caching AJAX responses. Here's a modified example from Rebecca Murphey's intro post on the topic:
var cache = {};
function getData( val ){
// return either the cached value or jqXHR object wrapped Promise
return $.when(
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Why does [5,6,8,7][1,2] = 8 in JavaScript?
... + — array subscript access operation,
where index is `1,2,3`,
which is an expression that evaluates to `3`.
The second [...] cannot be an array, so it’s an array subscript operation. And the contents of a subscript operation are not a delimited list...
What does “The APR based Apache Tomcat Native library was not found” mean?
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It means exactly what it says: "The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path"
The library referred to is bundled into an OS specific dll ...
What does status=canceled for a resource mean in Chrome Developer Tools?
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TypeScript type signatures for functions with variable argument counts
...pt variable amounts of arguments. Take the following object literal as an example:
3 Answers
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Programmatically change log level in Log4j2
...apache.logging.log4j.core.config.Configurator;
Configurator.setLevel("com.example.Foo", Level.DEBUG);
// You can also set the root logger:
Configurator.setRootLevel(Level.DEBUG);
Source
EDITED to reflect changes in the API introduced in Log4j2 version 2.0.2
If you wish to change the root logger...
How to disallow temporaries
...r macro-based solution:
#define Foo class Foo
The statement Foo("hi"); expands to class Foo("hi");, which is ill-formed; but Foo a("hi") expands to class Foo a("hi"), which is correct.
This has the advantage that it is both source- and binary-compatible with existing (correct) code. (This claim ...
throw Error('msg') vs throw new Error('msg')
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Both are fine; this is explicitly stated in the specification:
... Thus the function call Error(…) is equivalent to the object creation expression new Error(…) with the same arguments.
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Remove menu and status bars in TinyMCE 4
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excellent! any idea how customize a specific textarea rather than all of'em?
– abbood
Apr 10 '14 at 8:21
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