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autolayout - make height of view relative to half superview height

...een getting into autolayouts recently and I'm stuck on what seems like a really trivial problem example. I have a view that I want to sit at the top of the screen, and take up half of the screen-height. Simple before autolayout - just tack it in place and tell it to expand vertically when the superv...
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Email address validation using ASP.NET MVC data type attributes

... Validating email addresses with regex is usually a terrible idea... but if you must, there's an excellent reference here.. regular-expressions.info/email.html – Molomby Jul 23 '14 at 4:18 ...
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Deleting rows with MySQL LEFT JOIN

...ed May 4 '10 at 6:26 Daniel VassalloDaniel Vassallo 301k6666 gold badges475475 silver badges424424 bronze badges ...
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]

...I went ahead and created it in the first place :). Using pure Lucene is challenging. There are many things that you need to take care for if you want it to really perform well, and also, its a library, so no distributed support, it's just an embedded Java library that you need to maintain. In term...
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How do I get textual contents from BLOB in Oracle SQL

... First of all, you may want to store text in CLOB/NCLOB columns instead of BLOB, which is designed for binary data (your query would work with a CLOB, by the way). The following query will let you see the first 32767 characters (at mo...
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Improve INSERT-per-second performance of SQLite

...more memory will be used for your database. If you have indices, consider calling CREATE INDEX after doing all your inserts. This is significantly faster than creating the index and then doing your inserts. You have to be quite careful if you have concurrent access to SQLite, as the whole database i...
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How to get NSDate day, month and year in integer format?

...2017 Swift 3.0 (It's an iteration of previous answers, but solves it for all your future app projects) share | improve this answer | follow | ...
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MVC (Laravel) where to add logic

... I think all patterns / architectures that you present are very useful as long as you follow the SOLID principles. For the where to add logic I think that it's important to refer to the Single Responsibility Principle. Also, my answe...
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How to determine SSL cert expiration date from a PEM encoded certificate?

...an I query the cert file for when it will expire? Not a web site, but actually the certificate file itself, assuming I have the csr, key, pem and chain files. ...
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What does the “===” operator do in Ruby? [duplicate]

... Just like with every other method in Ruby (or actually pretty much any object-oriented language), a === b means whatever the author of a's class wants it to mean. However, if you don't want to confuse the heck out of your colleagues, the convention is that === is the cas...