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Detect Click into Iframe using JavaScript

I understand that it is not possible to tell what the user is doing inside an iframe if it is cross domain. What I would like to do is track if the user clicked at all in the iframe . I imagine a scenario where there is an invisible div on top of the iframe and the the div will just then ...
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Get the current first responder without using a private API

I submitted my app a little over a week ago and got the dreaded rejection email today. It tells me that my app cannot be accepted because I'm using a non-public API; specifically, it says, ...
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memory_get_peak_usage() with “real usage”

...4/1024)." MiB\n\n"; $x .= str_repeat(' ', 1024*25); //store 25kb more to string } Output: not real: 0.73469543457031 MiB real: 0.75 MiB not real: 0.75910949707031 MiB real: 1 MiB ... not real: 0.95442199707031 MiB real: 1 MiB not real: 0.97883605957031 MiB real: 1 MiB PHP Fatal error: All...
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An efficient way to transpose a file in Bash

... ")|transpose|map(join(" "))[]' jq -R . prints each input line as a JSON string literal, -s (--slurp) creates an array for the input lines after parsing each line as JSON, and -r (--raw-output) outputs the contents of strings instead of JSON string literals. The / operator is overloaded to split s...
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What is the difference between varchar and nvarchar?

...nswer: of course you can store UTF-8 in varchar but it'll break SQL Server string functions. If you perform all searches/transformations within your application then yes, you may do it (but what's the benefit?). Only Unicode encoding supported by SS is UCS-2 (yes, not UTF-16 before SS2k16) and its s...
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What is LINQ and what does it do? [closed]

...he type, but it very useful for adding methods to types you don't control (string), or adding (fully implemented) helper methods to interfaces. Query Comprehension Syntax - this allows you to write in a SQL Like structure. All of this stuff gets translated to the methods on System.Linq.Queryable or...
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XPath to select Element by attribute value

... Note that // selects and searches over all nodes of the document which can be slow. Instead, if the structure of the document is known then use a proper path, like suggested in Gilles' answer below. – Jens A...
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Replace input type=file by an image

Like a lot of people, I'd like to customize the ugly input type=file , and I know that it can't be done without some hacks and/or javascript . But, the thing is that in my case the upload file buttons are just for uploading images ( jpeg|jpg|png|gif ), so I was wondering if I could use a " clickab...
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SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?

...n you try to delete on table BookCourses only the table itself is affected and not on the Courses follow-up question: why do you have CourseID on table Category? Maybe you should restructure your schema into this, CREATE TABLE Categories ( Code CHAR(4) NOT NULL PRIMARY KEY, CategoryName VARC...
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putting datepicker() on dynamically created elements - JQuery/JQueryUI

I have dynamically created textboxes, and I want each of them to be able to display a calendar on click. The code I am using is: ...