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Composer: how can I install another dependency without updating old ones?

...nstall the package, and add it to composer.lock. You can also specify an explicit version constraint by running: composer require new/package ~2.5 –OR– Using the update command, add the new package manually to composer.json, then run: composer update new/package If Composer complains,...
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CSS content property: is it possible to insert HTML instead of Text?

...interpreted as markup, regardless of the document language in use. As an example, using the given CSS with the following HTML: <h1 class="header">Title</h1> ... will result in the following output: <a href="#top">Back</a>Title ...
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What are the best practices for JavaScript error handling?

... catch , finally , and throw , but I'm not finding a ton of advice from experts on when and where to throw errors. 5 Answ...
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Version vs build in Xcode

I have an app that I developed with Xcode 3 and recently started editing with Xcode 4. In the target summary I have the iOS application target form with fields: identifier, version, build, devices, and deployment target. The version field is blank and the build field is 3.4.0 (which matches the vers...
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Difference between objectForKey and valueForKey?

...nary method. An NSDictionary is a collection class similar to an NSArray, except instead of using indexes, it uses keys to differentiate between items. A key is an arbitrary string you provide. No two objects can have the same key (just as no two objects in an NSArray can have the same index). val...
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Fragment onCreateView and onActivityCreated called twice

... I was scratching my head about this for a while too, and since Dave's explanation is a little hard to understand I'll post my (apparently working) code: private class TabListener<T extends Fragment> implements ActionBar.TabListener { private Fragment mFragment; private Activity mA...
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Converting an array of objects to ActiveRecord::Relation

... data. However, if what you want is a relation then: for ActiveRecord 3.x, don’t call all and instead call scoped, which will give back a Relation which represents the same records that all would give you in an Array. for ActiveRecord 4.x, simply call all, which returns a Relation. When ru...
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How to detect when cancel is clicked on file input?

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How to change the session timeout in PHP?

I would like to extend the session timeout in php 7 Answers 7 ...
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How to create module-wide variables in Python? [duplicate]

...ears below, the Python interpreter said the variable __DBNAME__ did not exist. 5 Answers ...