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Find region from within an EC2 instance
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That URL (http://169.254.169.254/latest/dynamic/instance-identity/document) doesn't appear to work anymore. I get a 404 when I tried to use it. I have the following code which seems to work though:
EC2_AVAIL_ZONE=`curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone`...
What are the differences between JSON and JavaScript object? [duplicate]
...false
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The grammar of Strings changes. They have to be delimited by double quotes, while in JavaScript, you can use single or double quotes interchangeably.
// Invalid JSON:
{ "foo": 'bar' }
The accepted JSON grammar of Numbers also changes, in JavaScript you can use Hexadecimal Literals, ...
How to find server name of SQL Server Management Studio
... the default instance. To connect to it in Management Studio, just type . (dot) OR (local) and click Connect. If the instance name is different, then use .\[instance name] to connect to it (for example if the instance name is SQL2008, connect to .\SQL2008).
Also make sure SQL Server and SQL Server ...
What is array to pointer decay?
... and the type is not int [5] any more. Look here for cases where the decay doesn't happen.
If you're passing an array by value, what you're really doing is copying a pointer - a pointer to the array's first element is copied to the parameter (whose type should also be a pointer the array element's ...
How to access the first property of a Javascript object?
...ut get foo3. If the properties are numbered as in the example, you could do a string compare to ascertain the identifier ending in '1'. Then again, if ordinality is the main concern of the collection, you should probably use an array instead of an object.
– steamer25
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The preferred way of creating a new element with jQuery
...$div);
And of course .html('*') overrides the content while .append('*') doesn't, but I guess, this wasn't your question.
Another good practice is prefixing your jQuery variables with $:
Is there any specific reason behind using $ with variable in jQuery
Placing quotes around the "class" propert...
how to use adb command to push a file on device without sd card
...rom Ubuntu Terminal, below works for me.
./adb push '/home/hardik.trivedi/Downloads/one.jpg' '/data/local/'
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Setting JDK in Eclipse
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You manage the list of available compilers in the Window -> Preferences -> Java -> Installed JRE's tab.
In the project build path configuration dialog, under the libraries tab, you can delete the entry for JRE System Library, click on Add Library and choose the instal...
Converting an int to a binary string representation in Java?
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@ttreat31: I don't mean this to sound snarky, but you really should have the documentation (in this case JavaDoc) readily at hand whenever you are programming. You shouldn't have to ask: is their a similar method for longs; it should tak...
How to find nth occurrence of character in a string?
...ons in the regex:
the input path is absolute (i.e. starts with "/");
you do not need the 3rd "/" in the result.
As requested in a comment, I'll try to explain the regex: (/[^/]*){2}/([^/]*)
/[^/]* is a / followed by [^/]* (any number of characters that are not a /),
(/[^/]*) groups the pre...