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Strange behavior for Map, parseInt [duplicate]
... ah that makes sense, so the 2nd number is trying to evaluate in base 1 and fails and the rest will just return the index? That makes sense. Thanks.
– Ben McCormick
Jan 25 '13 at 18:50
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【持续更新】App Inventor 2 中文拓展一览 - App Inventor 2 中文网 - 清泛...
...图像】TaifunImage 拓展：图片压缩剪裁处理
【图像】SimpleBase64 拓展：图像Base64编解码传输
【图像】KIO4_Base64 拓展：更强大的图像Base64编解码工具，解码后的图像可写入到文件
【图像】ImageUtil 拓展：图像组件的附加工具，提供...
Polymorphism in C++
...<typename T>
void f(T& x) { x += 2; }
Virtual dispatch:
struct Base { virtual Base& operator+=(int) = 0; };
struct X : Base
{
X(int n) : n_(n) { }
X& operator+=(int n) { n_ += n; return *this; }
int n_;
};
struct Y : Base
{
Y(double n) : n_(n) { }
Y& ope...
How do I toggle an ng-show in AngularJS based on a boolean?
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If based on click here it is:
ng-click="orderReverse = orderReverse ? false : true"
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TypeScript function overloading
...estricts us from creating such functions.
TypeScript supports overloading based on number of parameters, but the steps to be followed are a bit different if we compare to OO languages. In answer to another SO question, someone explained it with a nice example: Method overloading?.
Basically, what ...
Drawing an SVG file on a HTML5 canvas
...tation to comment on the @Matyas answer, but if the svg's image is also in base64, it will be drawed to the output.
Demo:
var svg = document.querySelector('svg');
var img = document.querySelector('img');
var canvas = document.querySelector('canvas');
// get svg data
var xml = new XMLSeri...
Why should I implement ICloneable in c#?
...lied as a generic constraint along with other constraints. For example, a base class might usefully support a number of derivatives, some of which could be usefully cloned, and some of which could not. If the base type itself exposed a public cloning interface, then any derivative type which could...
Overloaded method selection based on the parameter's real type
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Ability to dispatch a call to a method based on types of arguments is called multiple dispatch. In Java this is done with Visitor pattern.
However, since you're dealing with Integers and Strings, you cannot easily incorporate this pattern (you just cannot modify ...
How to get error message when ifstream open fails
...ilure:
std::ifstream f;
//prepare f to throw if failbit gets set
std::ios_base::iostate exceptionMask = f.exceptions() | std::ios::failbit;
f.exceptions(exceptionMask);
try {
f.open(fileName);
}
catch (std::ios_base::failure& e) {
std::cerr << e.what() << '\n';
}
e.what(), ho...
Filtering a list of strings based on contents
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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