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How does HTTP file upload work?

... here ... ------WebKitFormBoundaryePkpFF7tjBAqx29L-- NOTE: each boundary string must be prefixed with an extra --, just like in the end of the last boundary string. The example above already includes this, but it can be easy to miss. See comment by @Andreas below. Instead of URL encoding the form...
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Moving matplotlib legend outside of the axis makes it cutoff by the figure box

...ng for is adjusting the savefig call to: fig.savefig('samplefigure', bbox_extra_artists=(lgd,), bbox_inches='tight') #Note that the bbox_extra_artists must be an iterable This is apparently similar to calling tight_layout, but instead you allow savefig to consider extra artists in the calculation...
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Good way of getting the user's location in Android

...specific provider (network/gps) */ private Location getLocationByProvider(String provider) { Location location = null; if (!isProviderSupported(provider)) { return null; } LocationManager locationManager = (LocationManager) getApplicationContext() .getSystemServi...
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How to combine paths in Java?

... Rather than keeping everything string-based, you should use a class which is designed to represent a file system path. If you're using Java 7 or Java 8, you should strongly consider using java.nio.file.Path; Path.resolve can be used to combine one path wi...
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Uses for Optional

...de to work, but it's rather clumsy. Suppose you have a method that takes a string followed by an optional second string. Accepting an Optional as the second arg would result in code like this: foo("bar", Optional.of("baz")); foo("bar", Optional.empty()); Even accepting null is nicer: foo("bar", ...
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Comparing Dates in Oracle SQL

... 31-DEC-95 isn't a string, nor is 20-JUN-94. They're numbers with some extra stuff added on the end. This should be '31-DEC-95' or '20-JUN-94' - note the single quote, '. This will enable you to do a string comparison. However, you're not doin...
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MongoDB SELECT COUNT GROUP BY

... I need some extra operation based on the result of aggregate function. Finally I've found some solution for aggregate function and the operation based on the result in MongoDB. I've a collection Request with field request, source, status...
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SQL SELECT speed int vs varchar

...2147483648 to +2147483647 ) character types occupy 4 bytes plus the actual strings. share | improve this answer | follow | ...
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Rails: How can I set default values in ActiveRecord?

... Rails 3.2+ - for earlier, use self.attributes.has_key?, and you need to a string instead of a symbol. – Cliff Darling Oct 22 '12 at 15:54 ...
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How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth

... ANY DEFINED BY algorithm OPTIONAL }, subjectPublicKey BIT STRING { RSAPublicKey ::= SEQUENCE { modulus INTEGER, -- n publicExponent INTEGER -- e } } That gives you an ASN.1 of: SEQUENCE (2 elements) SEQUENCE (2 elem...