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Javascript objects: get parent [duplicate]

...}.init(); Inside the init function you can get the parent object simply calling this. So we define the parent property directly inside the child object. Then (optionally) we can remove the init method. Finally we give the main object back as output from the init function. If you try to get main...
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How to go to each directory and execute a command?

...oesn't match anything else than numbers, but in the general case, you basically always want to put the directory name in double quotes inside the loop. cd "$d" would be better in that it transfers to situations where the wildcard does match files whose names contain whitespace and/or shell metachar...
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How to properly override clone method?

...versus Cloning If you've read the item about cloning in my book, especially if you read between the lines, you will know that I think clone is deeply broken. [...] It's a shame that Cloneable is broken, but it happens. You may read more discussion on the topic in his book Effective Java 2nd Ed...
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Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?

...ve' (for example) would be considered the same in searches. Sphinx doesn't allow partial index updates for field data though. The common approach to this is to maintain a delta index with all the recent changes, and re-index this after every change (and those new results appear within a second or tw...
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The Concept of 'Hold space' and 'Pattern space' in sed

... line. So what happens is this: first line is read and inserted automatically into the pattern space on the first line, first command is not executed; h copies the first line into the hold space. now the second line replaces whatever was in the pattern space on the second line, first we execute G,...
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How do you beta test an iphone app?

... In year 2011, there's a new service out called "Test Flight", and it addresses this issue directly. Apple has since bought TestFlight in 2014 and has integrated it into iTunes Connect and App Store Connect. ...
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How can I call controller/view helper methods from the console in Ruby on Rails?

... To call helpers, use the helper object: $ ./script/console >> helper.number_to_currency('123.45') => "R$ 123,45" If you want to use a helper that's not included by default (say, because you removed helper :all from Ap...
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What does “|=” mean? (pipe equal operator)

...ults | Notification.DEFAULT_SOUND; where | is the bit-wise OR operator. All operators are referenced here. A bit-wise operator is used because, as is frequent, those constants enable an int to carry flags. If you look at those constants, you'll see that they're in powers of two : public static...
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RegEx to parse or validate Base64 data

... The simplest solution would be to strip out all whitespace (which is ignored as per the RFC) before validation. – Ben Blank Jan 24 '09 at 1:35 2 ...
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How to ignore certain files in Git

... How to ignore new files Globally Add the path(s) to your file(s) which you would like to ignore to your .gitignore file (and commit them). These file entries will also apply to others checking out the repository. Locally Add the path(s) to your file(...