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Creating and Update Laravel Eloquent
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There is and it's called firstOrNew / firstsOrCreate
– malhal
Aug 24 '14 at 11:59
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How can you profile a Python script?
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Python includes a profiler called cProfile. It not only gives the total running time, but also times each function separately, and tells you how many times each function was called, making it easy to determine where you should make optimizations.
You c...
Is R's apply family more than syntactic sugar?
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7.52 0.00 7.58
Edit 2:
Regarding the usage of parallel packages for R (e.g. rpvm, rmpi, snow), these do generally provide apply family functions (even the foreach package is essentially equivalent, despite the name). Here's a simple example of the sapply function in snow:
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How do I disable a Pylint warning?
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@Head Geek: 0.21.3, astng 0.20.3 and common 0.52.1 actually (the latest when I installed it, more recent than yours)
– Chris Morgan
Dec 3 '10 at 22:03
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Convert string to nullable type (int, double, etc…)
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+1, Just beat me to it. A small nitpick: the converted value needs to be assigned directly to result, not to result.Value. ie, "result = (T)conv.ConvertFrom(s);".
– LukeH
Apr 21 '09 at 15:33
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What's the strangest corner case you've seen in C# or .NET? [closed]
...es and brain teasers and would always like to hear more. The page only really covers C# language bits and bobs, but I also find core .NET things interesting too. For example, here's one which isn't on the page, but which I find incredible:
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How can I create an object based on an interface file definition in TypeScript?
...eating the "modal" variable elsewhere, and want to tell TypeScript it will all be done, you would use:
declare const modal: IModal;
If you want to create a variable that will actually be an instance of IModal in TypeScript you will need to define it fully.
const modal: IModal = {
content: ''...
Location of parenthesis for auto-executing anonymous JavaScript functions?
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They're virtually the same.
The first wraps parentheses around a function to make it a valid expression and invokes it. The result of the expression is undefined.
The second executes the function and the parentheses around the automati...
Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...其他原始数据类型。
如果你需要实现一个数组用来存放(Foo,Bar)的对象，尝试分解为Foo[]与Bar[]要比(Foo,Bar)好很多。(当然，为了某些好的API的设计，可以适当做一些妥协。但是在自己的代码内部，你应该多多使用分解后的容易。
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Working with huge files in VIM
I tried opening a huge (~2GB) file in VIM but it choked. I don't actually need to edit the file, just jump around efficiently.
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