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What is this 'Lambda' everyone keeps speaking of?
...re a variable. In JavaScript:
function () {}; // very simple
Let's see now some uses for these lambdas.
Abstracting boilerplate code
Lambdas may be used to abstract away boilerplate code. For example loops. We're used to write for and while loops all day long. But this is code that does not be...
SQLAlchemy: cascade delete
...SCADE that you set up. This is because it relies on those foreign keys to know which child rows to delete. Once SqlAlchemy has set them all to NULL, the database can't delete them. Setting the passive_deletes=True prevents SqlAlchemy from NULLing out the foreign keys.
You can read more about passive...
Reshaping data.frame from wide to long format
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,then that's good for me, don't know id.vars and the measure.vars can be specified in the first alternative,sorry for the mess, its my fault.
– Jason Goal
Oct 20 '17 at 5:34
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Ajax using https on an http page
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Seems like Opera supports it now: en.wikipedia.org/wiki/… Only not Opera Mini though...
– gitaarik
Mar 5 '14 at 11:07
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Find method references in Xcode
...uess not, since in at least some cases the compiler won't have any way of knowing which implementation is to be called.
– Mark Amery
May 5 '15 at 23:51
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How to push new branch without history
...configs, purged all the files and then placed in configuration files only.
Now I want to push this on remote repo, but as it were new, empty branch (without logs of all my changes and old revisions of original branch).
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unsigned int vs. size_t
..."your compiler might make assumption about it": I would hope the compiler knows the exact range of values that size_t can represent! If it doesn't, who does?
– Marc van Leeuwen
Jun 15 '14 at 5:42
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VB.NET equivalent of C# property shorthand?
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@rap, now implement "public string FirstName {get; private set;}" in VB :P
– Blorgbeard is out
Mar 18 '14 at 21:11
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How to extract img src, title and alt from html using php? [duplicate]
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EDIT : now that I know better
Using regexp to solve this kind of problem is a bad idea and will likely lead in unmaintainable and unreliable code. Better use an HTML parser.
Solution With regexp
In that case it's better to split...
Why did Bootstrap 3 switch to box-sizing: border-box?
...ample: Try putting a 1 pixel border on a 100% width div, with content-box. Now you've got something thats 100% + 2 pixels. With border-box, you don't have that problem, its still 100%.
– emptywalls
Feb 14 '14 at 23:23
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