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What does principal end of an association means in 1:1 relationship in Entity framework

I was trying to do this in Entity Framework when I got the error: 3 Answers 3 ...
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Correct Bash and shell script variable capitalization

I run across many shell scripts with variables in all caps, and I've always thought that there is a severe misunderstanding with that. My understanding is that, by convention (and perhaps by necessity long ago), environment variables are in all-caps. ...
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Is there a REAL performance difference between INT and VARCHAR primary keys?

... and a coworker won't budge on the INT AUTO_INCREMENT as a primary key for all tables. 14 Answers ...
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How to set selected value of jquery select2?

... To dynamically set the "selected" value of a Select2 component: $('#inputID').select2('data', {id: 100, a_key: 'Lorem Ipsum'}); Where the second parameter is an object with expected values. UPDATE: This does work, just wanted to n...
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ValueError : I/O operation on closed file

... Indent correctly; your for statement should be inside the with block: import csv with open('v.csv', 'w') as csvfile: cwriter = csv.writer(csvfile, delimiter=' ', quotechar='|', quoting=csv.QUOTE_MINIMAL) for w, c in p.items(): ...
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Recover from git reset --hard?

...eset HEAD@{1} This will restore to the previous HEAD [1] vim e.g. optionally stores persistent undo, eclipse IDE stores local history; such features might save your a** share | improve this answe...
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How do I add a delay in a JavaScript loop?

...ick succession. That is why your first alerts pops up after 3 seconds, and all the rest follow in succession without any delay. You may want to use something like this instead: var i = 1; // set your counter to 1 function myLoop() { // create a loop function se...
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How do I get jQuery to select elements with a . (period) in their ID?

... For that reason, in CSS itself, you must escape a dot in an ID, too. All jQuery is doing is requiring you to follow the rules set out by CSS. – bdukes Apr 6 '09 at 14:11 6 ...
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How to break out from a ruby block?

... Use the keyword next. If you do not want to continue to the next item, use break. When next is used within a block, it causes the block to exit immediately, returning control to the iterator method, which may then begin a new iteration by invoking...
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How can I delete a query string parameter in JavaScript?

Is there better way to delete a parameter from a query string in a URL string in standard JavaScript other than by using a regular expression? ...