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How can I get the button that caused the submit from the form submit event?
I'm trying to find the value of the submit button that triggered the form to submit
16 Answers
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Loop inside React JSX
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Think of it like you're just calling JavaScript functions. You can't use a for loop where the arguments to a function call would go:
return tbody(
for (var i = 0; i < numrows; i++) {
ObjectRow()
}
)
See how the ...
Does a `+` in a URL scheme/host/path represent a space?
...ed, but
any + characters in the path component is expected to be treated literally.
To be explicit: + is only a special character in the query component.
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What is Dependency Injection and Inversion of Control in Spring Framework?
...dependencies) and do not worry about how they will get those dependencies. It is the responsibility of Spring to provide the required dependencies for creating objects.
For example: Suppose we have an object Employee and it has a dependency on object Address. We would define a bean corresponding t...
A monad is just a monoid in the category of endofunctors, what's the problem?
...Wrong History of Programming Languages, in which he fictionally attributes it to Philip Wadler.
The original quote is from Saunders Mac Lane in Categories for the Working Mathematician, one of the foundational texts of Category Theory. Here it is in context, which is probably the best place to learn...
Safely casting long to int in Java
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A new method has been added with Java 8 to do just that.
import static java.lang.Math.toIntExact;
long foo = 10L;
int bar = toIntExact(foo);
Will throw an ArithmeticException in case of overflow.
See: Math.toIntExact(long)
Several other overflow...
What exactly is the meaning of an API? [closed]
I've searched for the definition of an API in a programming language and I am still finding it hard to understand.
13 Answe...
Generating Random Passwords
When a user on our site loses his password and heads off to the Lost Password page we need to give him a new temporary password. I don't really mind how random this is, or if it matches all the "needed" strong password rules, all I want to do is give them a password that they can change later.
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Difference between Python's Generators and Iterators
What is the difference between iterators and generators? Some examples for when you would use each case would be helpful.
1...
Using “super” in C++
...of C++ that super as a keyword was considered by the ISO C++ Standards committee the first time C++ was standardized.
Dag Bruck proposed this extension, calling the base class "inherited." The proposal mentioned the multiple inheritance issue, and would have flagged ambiguous uses. Even Stroustru...