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What is the Swift equivalent of respondsToSelector?
...r:, even if Swift, if you are dealing with NSObject instances:
@interface TestA : NSObject
- (void)someMethod;
@end
@implementation TestA
//this triggers a warning
@end
var a = TestA()
if a.respondsToSelector("someMethod") {
a.someMethod()
}
...
Best practices for styling HTML emails [closed]
...load them and they won't appear as attachments to the email.
And lastly, test, test, test! Each email client does things way differently than a browser would do.
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Determine project root from a running node.js application
... That means that you can determine whether a file has been run directly by testing require.main === module
Because module provides a filename property (normally equivalent to __filename), the entry point of the current application can be obtained by checking require.main.filename.
So if you w...
What is the best way to clone/deep copy a .NET generic Dictionary?
... entry => (T) entry.Value.Clone());
(Those are untested, but should work.)
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Can I hide the HTML5 number input’s spin box?
...
This CSS effectively hides the spin-button for webkit browsers (have tested it in Chrome 7.0.517.44 and Safari Version 5.0.2 (6533.18.5)):
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
/* display: none; <- Crashes Chrome on hover */
-webkit-appearance:...
Emulating a do-while loop in Bash
...
Place the body of your loop after the while and before the test. The actual body of the while loop should be a no-op.
while
check_if_file_present
#do other stuff
(( current_time <= cutoff ))
do
:
done
Instead of the colon, you can use continue if you find that ...
Preloading CSS Images
... to work. I was casually sticking to an image with a wrong path.
Here's a test : http://paragraphe.org/slidetoggletest/test.html
<script>
var pic = new Image();
var pic2 = new Image();
var pic3 = new Image();
pic.src="images/inputs/input1.png";
pic2.src="images/inputs/inp...
Removing whitespace between HTML elements when using line breaks
...n the parent element. For some reason, Chrome ignore this (and as far as I tested, it ignores the word spacing regardless of the value). So besides this I add letter-spacing: -.31em to the parent and letter-spacing: normal to the children. This fraction of an em is the size of the space ONLY IF your...
Difference between method and function in Scala
...returns from a method. For example:
scala> val f = () => { return "test" }
<console>:4: error: return outside method definition
val f = () => { return "test" }
^
Returning from a function defined in a method does a non-local return:
scala> def f: ...
@try - catch block in Objective-C
...
All work perfectly :)
NSString *test = @"test";
unichar a;
int index = 5;
@try {
a = [test characterAtIndex:index];
}
@catch (NSException *exception) {
NSLog(@"%@", exception.reason);
NSLog(@"Char at index %d cannot be found", index);
...