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How to check for valid email address? [duplicate]

... to check, it might be faster to compile the regex first: import re EMAIL_REGEX = re.compile(r"... regex here ...") if not EMAIL_REGEX.match(email): # whatever Another option is to use the validate_email package, which actually contacts the SMTP server to verify that the address exists. Thi...
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E11000 duplicate key error index in mongodb mongoose

...xes From comments: Your error says that the key is named mydb.users.$email_1 which makes me suspect that you have an index on both users.email and users.local.email (The former being old and unused at the moment). Removing a field from a Mongoose model doesn't affect the database. Check with mydb.u...
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What is an abstract class in PHP?

...mpose requirements upon the exhibiting class. Example below : class Non_Abstract_Class { abstract protected function getValue(); public function printOut() { echo "Hello how are you?"; } } $obj=new Non_Abstract_Class(); $obj->printOut(); //Fatal error: Class Non_Abstract_...
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Twitter Bootstrap: div in container with 100% height

.... First of all, the container (parent) needs to be full height: Option 1_ Add a class for min-height: 100%;. Remember that min-height will only work if the parent has a defined height: html, body { height: 100%; } .min-100 { min-height: 100%; } https://www.codeply.com/go/dTaVyMah1U Opt...
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Create directories using make file

... This would do it - assuming a Unix-like environment. MKDIR_P = mkdir -p .PHONY: directories all: directories program directories: ${OUT_DIR} ${OUT_DIR}: ${MKDIR_P} ${OUT_DIR} This would have to be run in the top-level directory - or the definition of ${OUT_DIR} would h...
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Why am I getting an Exception with the message “Invalid setup on a non-virtual (overridable in VB) m

...emplate = null); } And instead of private Mock<XmlCupboardAccess> _xmlCupboardAccess = new Mock<XmlCupboardAccess>(); change to private Mock<IXmlCupboardAccess> _xmlCupboardAccess = new Mock<IXmlCupboardAccess>(); ...
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How to specify the default error page in web.xml?

... java.sun.com/xml/ns/javaee/web-app_2_5.xsd specifies no <description> child for the <error-page> element, so pasting the above code as-is in a Servlet 2.5 web.xml will cause XSD validation errors. If I comment them, though, it works fine, thanks! ...
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Authenticating in PHP using LDAP through Active Directory

...ficient when all you need is essentially two lines of code... $ldap = ldap_connect("ldap.example.com"); if ($bind = ldap_bind($ldap, $_POST['username'], $_POST['password'])) { // log them in! } else { // error message } ...
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What does -fPIC mean when building a shared library?

...day and it wouldn't build, I got /usr/bin/ld: /tmp/cc7hXILq.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC so I added fPIC and it built. – chiliNUT Nov 18 '15 at 21:14 ...
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Apply CSS style attribute dynamically in Angular JS

...em.id" ng-style="{'background-image':'url(../images/'+'{{item.id}}'+'_active.png)', 'background-size':'52px 57px', 'padding-top':'70px', 'background-repeat':'no-repeat', 'background-position': 'center'}"> </span> <sp...