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Difference between require, include, require_once and include_once?

...that executes on the spot, that's procedural code, and you need to get to know a new paradigm. Like object oriented programming, function-based programming, or functional programming. If you're already doing OO or functional programming, using include_once is mostly going to be delaying where in t...
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Provide an image for WhatsApp link sharing

...orithm if you haven't already. If you completed the steps above, you can now see your preview in WhatsApp! However, be aware of the "please note" section above. Step 7: og:type In order for your object to be represented within the graph, you need to specify its type. Here's a list of the global ...
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Mercurial: Can I rename a branch?

We now have a "stiging" branch, where "staging" seems to be a far better semantic fit. What's a good strategy for handling this? ...
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Difference between Covariance & Contra-variance

...s T → IE<T>. Notice that this is a "thin arrow". With me so far? Now let's consider a relation. There is an assignment compatibility relationship between pairs of types in the first set. A value of type Tiger can be assigned to a variable of type Animal, so these types are said to be "assi...
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Detect the Internet connection is offline?

... Now in 2012 you can check the variable navigator.onLine ;) – João Pinto Jerónimo Apr 23 '12 at 9:13 13 ...
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How to debug Google Apps Script (aka where does Logger.log log to?)

... this answer, Stackdriver Logging is the preferred method of logging now. Use console.log() to log to Stackdriver. Logger.log will either send you an email (eventually) of errors that have happened in your scripts, or, if you are running things from the Script Editor, you can view the ...
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Is memcached a dinosaur in comparison to Redis? [closed]

... There is no facility to handle replication with memcache that I know of. Memcache is purely meant to be a cache. If the item is purged/lost, then it needs to be rebuilt. I have not used this before nor have I evaluated it, but this may be of interest to you. code.google.com/p/memagent ...
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How do I remove a submodule?

...ule's section in .gitmodules is left untouched, which is a leftover of the now removed submodule and might irritate users (as opposed to the setting in .git/config, this must stay as a reminder that the user showed interest in this submodule so it will be repopulated later when an older commit is ch...
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Does java have a int.tryparse that doesn't throw an exception for bad data? [duplicate]

...ke this: if (tryParseInt(input)) { Integer.parseInt(input); // We now know that it's safe to parse } EDIT (Based on the comment by @Erk) Something like follows should be better public int tryParse(String value, int defaultVal) { try { return Integer.parseInt(value); } ca...
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Visual Studio debugging “quick watch” tool and lambda expressions

...e function Example is run in the debugger it will stop at the Break line. Now imagine if the user typed the following into the watch window (Func<int>)(() => v2); In order to properly execute this the debugger (or more appropriate the EE) would need to create a closure for variable v2. ...