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How to concatenate two strings in C++?
...h as when you want to pass to some function, then you can do this:
some_c_api(s.c_str(), s.size());
assuming this function is declared as:
some_c_api(char const *input, size_t length);
Explore std::string yourself starting from here:
Documentation of std::string
Hope that helps.
...
How to get the previous URL in JavaScript?
...o the previous page without knowing the url, you could use the new History api.
history.back(); //Go to the previous page
history.forward(); //Go to the next page in the stack
history.go(index); //Where index could be 1, -1, 56, etc.
But you can't manipulate the content of the history stack on br...
Read error response body in Java
... take a look at Commons HttpClient, which (in my opinion) has a far easier API to work with.
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How to implement a rule engine?
...t generating code on the fly was possible even before the Expression trees API was introduced, using Reflection.Emit. The method LambdaExpression.Compile() uses Reflection.Emit under the covers (you can see this using ILSpy).
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Java dynamic array sizes?
...
If you want something more array-like, you will need to design your own API. (Maybe someone could chime in with an existing third party library ... I couldn't find one with 2 minutes "research" using Google :-) )
If you only really need an array that grows as you are initializing it, then the s...
How to get scrollbar position with Javascript?
...:
The best way to do things like that is to use the Intersection Observer API.
The Intersection Observer API provides a way to asynchronously observe
changes in the intersection of a target element with an ancestor
element or with a top-level document's viewport.
Historically, detectin...
Pure JavaScript Graphviz equivalent [closed]
... e-mail) ;-) available here. Forking the project and making an easy-to-use API for it would be a first great step..!
– Greg Sadetsky
Jul 17 '12 at 15:05
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Prevent Default on Form Submit jQuery
... if(!valid) {
e.preventDefault();
}
});
});
Cite: https://api.jquery.com/on/
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Java ResultSet how to check if there are any results
...".
Compare the two throw sections:
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#isBeforeFirst()
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#first()
Okay, basically this means that you should use "isBeforeFirst" as long as you have a "forward only" type. O...
When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or
...isolate scope also to say: "Don't mess with this. I'm giving you a defined API through these few attributes."
A good best practice is to exclude as much template-based stuff from the directive link and controller functions as possible. This provides another "API-like" configuration point: the user ...