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Checking whether a variable is an integer or not [duplicate]

... before I give data to a database query when wanting to fetch an objetc by id, which is an integer, I check if input is actually and integer and useable before handing it to the database layer. – Henning Jun 15 '13 at 9:49 ...
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What is the 'cls' variable used for in Python classes?

...The distinction between "self" and "cls" is defined in PEP 8 . As Adrien said, this is not a mandatory. It's a coding style. PEP 8 says: Function and method arguments: Always use self for the first argument to instance methods. Always use cls for the first argument to class methods. ...
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Where does Jenkins store configuration files for the jobs it runs?

... All configuration files stores inside jenkins master server.Simply can say – Prasad MCN Apr 6 '18 at 7:28 add a comment ...
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Why is MySQL's default collation latin1_swedish_ci?

... Yes you are right, He named MariDB (Wife name is Maria) and MaxDB (His son name is Max). but why he left his Daughter name..! :) LOL. ! – Ajmal Praveen Jan 8 '18 at 9:06 ...
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What is the “-d” in “npm -d install”?

... var channelOptions = { tags: "".split(" "), id: "1" }; initTagRenderer("".split(" "), "".split(" "), channelOptions); StackExchange.using("externalEditor", function() { // Have to fire editor after snippets, if snippets enabled...
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Remove a character from the end of a variable

...arget=${1%/} See this the parameter substitution of this bash scripting guide for more. share | improve this answer | follow | ...
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How to break out or exit a method in Java?

... Use the return keyword to exit from a method. public void someMethod() { //... a bunch of code ... if (someCondition()) { return; } //... otherwise do the following... } From the Java Tutorial that I linked to above: Any method declared void doesn't retu...
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Creating an empty file in Ruby: “touch” equivalent?

...@Abhi: It does, but garbage collection will handle it at some point. To avoid that, though, pass an empty block (See Michael Kohl's answer) – Marc-André Lafortune Nov 11 '11 at 22:40 ...
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NuGet Package Manager errors when trying to update

... I did not see NuGet on Add/Remove and 'Uninstall' are disabled on VS for this package... :( How can I upgrade? – Dmitry Gusarov Sep 18 '12 at 16:15 ...
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How to escape special characters in building a JSON string?

...is bad because : It IS contrary to the specs It is no-longer JSON valid string But it works, as you want it or not. For new readers, always use a double quotes for your json strings. share | ...