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Eloquent Collection: Counting and Detect Empty
This may be a trivial question but I am wondering if Laravel recommends a certain way to check whether an Eloquent collection returned from $result = Model::where(...)->get() is empty, as well as counting the number of elements.
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Git - Difference Between 'assume-unchanged' and 'skip-worktree'
...e tracked and possibly generated from tracked files using a templating mechanism.
However, users learn about the assume-unchanged and skip-worktree bits and try to use them to do this anyway.
This is problematic, because when these bits are set, many operations behave as the user expects...
What is the difference between linear regression and logistic regression?
...g divide by 1 is the same. so there is no difference. I am sure you were meaning to ask something else.
– spacewanderer
May 14 '18 at 18:39
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INNER JOIN ON vs WHERE clause
For simplicity, assume all relevant fields are NOT NULL .
11 Answers
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Difference between objectForKey and valueForKey?
What is the difference between objectForKey and valueForKey ?
I looked both up in the documentation and they seemed the same to me.
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Websocket API to replace REST API?
...ses how to have different rooms for each authenticated user.
http://www.danielbaulig.de/socket-ioexpress/
Tutorial on node.js/socket.io/backbone.js/express/connect/jade/redis with authentication, Joyent hosting, etc:
http://fzysqr.com/2011/02/28/nodechat-js-using-node-js-backbone-js-socket-io-...
How to deal with a slow SecureRandom generator?
If you want a cryptographically strong random numbers in Java, you use SecureRandom . Unfortunately, SecureRandom can be very slow. If it uses /dev/random on Linux, it can block waiting for sufficient entropy to build up. How do you avoid the performance penalty?
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Are duplicate keys allowed in the definition of binary search trees?
I'm trying to find the definition of a binary search tree and I keep finding different definitions everywhere.
12 Answers
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What's the difference between passing by reference vs. passing by value?
...sion is the fact that in "pass by reference", "reference" has a narrower meaning than the general term "reference" (because the phrase predates it).
Now, the authentic definition is:
When a parameter is passed by reference, the caller and the callee use the same variable for the parameter. If t...
How do I REALLY reset the Visual Studio window layout?
I had a plugin installed in Visual Studio 2008, and it created some extra dockable windows. I have uninstalled it, and I can't get rid of the windows it created - I close them, but they always come back. They're just empty windows now, since the plugin is no longer present, but nothing I've tried ...