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Difference between a virtual function and a pure virtual function [duplicate]
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A pure virtual function is a virtual function whose declaration ends in =0:
class Base {
// ...
virtual void f() = 0;
// ...
A pure virtual function implicitly makes the class it is defined for abstract (unlike in Java where you have a keyword to explicitly declare the class abstract). Ab...
What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
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204
Intro
In MVVM the usual practice is to have the Views find their ViewModels by resolving them ...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
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+50
Fiddle Links: Source code - Preview - Small version
Update: This small function will only execute code in a single direction. If you w...
How to find if a given key exists in a C++ std::map
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edited Aug 28 '13 at 9:05
answered Dec 21 '09 at 12:58
a...
Build an iOS app without owning a mac? [closed]
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edited Nov 20 '15 at 12:27
answered Sep 11 '13 at 11:42
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Get loop counter/index using for…of syntax in JavaScript
...tion (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
Or ES6’s Array.prototype.entries, which now has support across current browser versions:
for (const [i, value] of myArray.entries()) {
console.log('%d: %s', i, value);
}
For itera...
What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
... the big differences between TFS and Git for source control when using VS 2013?
MSDN has a very extensive page on all the features and differences between Team Foundation Version Control and Git.
Is the only benefit in my case a local repository (not saying that's insignificant) and IoS develo...
How to get next/previous record in MySQL?
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edited Jul 10 '12 at 10:53
Vimalnath
6,12222 gold badges2323 silver badges4444 bronze badges
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How do I get the first n characters of a string without checking the size or going out of bounds?
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Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think ...