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Regex lookahead, lookbehind and atomic groups
...ume any characters so that search for REGEX_2 starts at the same location. Now REGEX_2 makes sure that the string matches some other rules. Without look-ahead it would match strings of length three or five.
Negative lookahead
Syntax:
(?!REGEX_1)REGEX_2
Match only if REGEX_1 does not match; af...
Explain Morris inorder tree traversal without using stacks or recursion
...sal. So X is made the right child of B, then current is set to Y. The tree now looks like this:
Y
/ \
A B
\
X
/ \
(Y) Z
/ \
C D
(Y) above refers to Y and all of its children, which are omitted for recursion issues. The important part is li...
Named placeholders in string formatting
... the position in the list of args, which makes it a renaming problem. You know the name of the keys, which means you can decide a position for a key in the list of arguments. from now on value will be known as 0 and column as 1: MessageeFormat.format("There's an incorrect value \"{0}\" in ...
Git-Based Source Control in the Enterprise: Suggested Tools and Practices?
...t immature support on Windows (please correct me if that changed recently) Now windows has github windows client , tortoisegit , SourceTree from atlassian
Lack of mature GUI tools, no first class citizen vdiff/merge tool integration
Inconsistent interface with a very low level of abstractions on to...
How do I set up email confirmation with Devise?
...devise:views # global
rails generate devise:views users # scoped
You can now override the mailer views in devise/mailer/confirmation_instructions.html.erb or users/mailer/confirmation_instructions.html.erb depending on your setup
4. For development environment add the following config lines in /c...
Can I install/update WordPress plugins without providing FTP access?
...you to use the 'direct' method of installing plugins, themes, or updates.
Now, if for some reason you do not want to rely on the automatic check for which filesystem method to use, you can define a constant, 'FS_METHOD' in your wp-config.php file, that is either 'direct', 'ssh', 'ftpext' or 'ftpsoc...
How do I link to part of a page? (hash?)
...
Note this is now obsolete in HTML5.
– Tim
Jun 12 '16 at 11:53
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Google Maps API v3: Can I setZoom after fitBounds?
...etting the zoom... I'm still wondering why this step is needed, but anyway now it works... thanks a lot Jim!
– daveoncode
Nov 14 '11 at 10:26
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Order of event handler execution
...Ah, I see where I'm going wrong: "Event handlers are delegates, right?". I now know they're not. Have written myself an event that fires handlers in reverse order, just to prove it to myself :)
– Rawling
Mar 1 '10 at 10:56
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Correct way to convert size in bytes to KB, MB, GB in JavaScript
...e fixed version below. Aliceljm does not active her copied code anymore
Now, Fixed version unminified, and ES6'ed: (by community)
function formatBytes(bytes, decimals = 2) {
if (bytes === 0) return '0 Bytes';
const k = 1024;
const dm = decimals < 0 ? 0 : decimals;
const sizes...