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How to communicate between iframe and the parent site?

...bsite in the iframe isn't located in the same domain , but both are mine, and I would like to communicate between the iframe and the parent site. Is it possible? ...
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Last non-empty cell in a column

... This works with both text and numbers and doesn't care if there are blank cells, i.e., it will return the last non-blank cell. It needs to be array-entered, meaning that you press Ctrl-Shift-Enter after you type or paste it in. The below is for colu...
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What's the difference between Protocol Buffers and Flatbuffers?

Both are serialization libraries and are developed by Google developers. Is there any big difference between them? Is it a lot of work to convert code using Protocol Buffers to use FlatBuffers ? ...
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Resizing UITableView to fit content

I am creating an app which will have a question in a UILabel and a multiple choice answers displayed in UITableView , each row showing a multiple choice. Questions and answers will vary, so I need this UITableView to be dynamic in height. ...
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Why use jQuery on() instead of click()

... example coming from an AJAX call), you might want to have the same click handler that was previously bound to the same element selector, you then "delegate" the click event using on() with selector argument To demonstrate: http://jsfiddle.net/AJRw3/ on() can also be synonymous with click() if yo...
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What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?

What is the difference between Unidirectional and Bidirectional associations? 4 Answers ...
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Proper MIME media type for PDF files

When working with PDFs, I've run across the MIME types application/pdf and application/x-pdf among others. 3 Answers ...
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What to do with “Unexpected indent” in python?

... uses spacing at the start of the line to determine when code blocks start and end. Errors you can get are: Unexpected indent. This line of code has more spaces at the start than the one before, but the one before is not the start of a subblock (e.g. if/while/for statement). All lines of code in a ...
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How do I check if a string contains another string in Objective-C?

..."); } The key is noticing that rangeOfString: returns an NSRange struct, and the documentation says that it returns the struct {NSNotFound, 0} if the "haystack" does not contain the "needle". And if you're on iOS 8 or OS X Yosemite, you can now do: (*NOTE: This WILL crash your app if this code ...
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Database design for a survey [closed]

...estions. For example: text fields for comments, multiple choice questions, and possibly questions that could contain more than one answer (i.e. check all that apply). ...