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How to get image size (height & width) using JavaScript?
...
You can programmatically get the image and check the dimensions using Javascript...
const img = new Image();
img.onload = function() {
alert(this.width + 'x' + this.height);
}
img.src = 'http://www.google.com/intl/en_ALL/images/logo.gif';
...
How to concatenate two strings in C++?
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First of all, don't use char* or char[N]. Use std::string, then everything else becomes so easy!
Examples,
std::string s = "Hello";
std::string greet = s + " World"; //concatenation easy!
Easy, isn't it?
Now if you need char con...
How to set a JavaScript breakpoint from code in Chrome?
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This is very helpful. Note also debugger; is supported in all major browsers. For more information: w3schools.com/jsref/jsref_debugger.asp
– ScottyG
Apr 15 '16 at 15:31
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Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...），仅仅在自己写一些框架和注解框架时会用到，所以对api总是不熟悉。每次用到api都要去网上查，查了后又得自己实验下，很不爽。更差劲的是这样写法可读性十分低下。我不希望这样写反射，我希望反射能像：
String str = n...
Count elements with jQuery
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var count_elements = $('.class').length;
From: http://api.jquery.com/size/
The .size() method is functionally
equivalent to the .length property;
however, the .length property is
preferred because it does not have the
overhead of a function call.
Please see:
http...
How to convert a char array back to a string?
...ver, that this is a very unusual situation: Because String is handled specially in Java, even "foo" is actually a String. So the need for splitting a String into individual chars and join them back is not required in normal code.
Compare this to C/C++ where "foo" you have a bundle of chars terminat...
How to set downloading file name in ASP.NET Web API
In my ApiController class, I have following method to download a file created by server.
9 Answers
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java.lang.IllegalArgumentException: View not attached to window manager
... } catch (final Exception e) {
// Handle or log or ignore
} finally {
this.mDialog = null;
}
}
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Code-first vs Model/Database-first [closed]
...will lose part of the control on both your entities and database but for small easy projects you will be very productive.
If you want additional features in POCO entities you must either T4 modify template or use partial classes.
Manual changes to database will be most probably lost because your mod...
augmented reality framework [closed]
...have a look at Junaio junaio.com/develop
– Fernando Gallego
May 31 '12 at 14:21
6
I would also ad...