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Pass props to parent component in React.js

Is there not a simple way to pass a child's props to its parent using events, in React.js? 7 Answers ...
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Why is it impossible to build a compiler that can determine if a C++ function will change the value

... Why is it impossible to build such a compiler? For the same reason that you can't write a program that will determine whether any given program will terminate. This is known as the halting problem, and it's one of those things tha...
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Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]

...ls like sh/ksh/bash/... provide input/output/flow-control designation facilities much like the old mainframe Job Control Language... but on steroids! They are Turing complete languages in their own right while being optimized to efficiently pass data and control to and from other executing processes...
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What are important languages to learn to understand different approaches and concepts? [closed]

...nd a bottle of vodka, everything looks like the lock on the door of Wolf Blitzer's boathouse. (Replace that with a hammer and a nail if you don't read xkcd) ...
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Structs versus classes

I'm about to create 100,000 objects in code. They are small ones, only with 2 or 3 properties. I'll put them in a generic list and when they are, I'll loop them and check value a and maybe update value b . ...
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Parameterize an SQL IN clause

How do I parameterize a query containing an IN clause with a variable number of arguments, like this one? 40 Answers ...
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Can someone copyright a SQL query? [closed]

...e to export a list of students from our student management system and send it to a company that handles our online exams. 7...
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Correct way to use StringBuilder in SQL

... The aim of using StringBuilder, i.e reducing memory. Is it achieved? No, not at all. That code is not using StringBuilder correctly. (I think you've misquoted it, though; surely there aren't quotes around id2 and table?) Note that the aim (usually) is to reduce memory churn rat...
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What is a CSRF token ? What is its importance and how does it work?

I am writing an application (Django, it so happens) and I just want an idea of what actually a "CSRF token" is and how it protects the data. Is the post data not safe if you do not use CSRF tokens? ...
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Given a view, how do I get its viewController?

I have a pointer to a UIView . How do I access its UIViewController ? [self superview] is another UIView , but not the UIViewController , right? ...