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Capturing touches on a subview outside the frame of its superview using hitTest:withEvent:
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I have modified the accepted answer's code to be more generic - it handles the cases where the view does clip subviews to its bounds, may be hidden, and more importantly : if the subviews are complex view hierarchies, the correct subvi...
Test for existence of nested JavaScript object key
If I have a reference to an object:
57 Answers
57
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How can I remove a specific item from an array?
...ay = [2, 5, 9];
console.log(array);
const index = array.indexOf(5);
if (index > -1) {
array.splice(index, 1);
}
// array = [2, 9]
console.log(array);
The second parameter of splice is the number of elements to remove. Note that splice modifies the array in place and returns...
Pythonic way to combine FOR loop and IF statement
I know how to use both for loops and if statements on separate lines, such as:
10 Answers
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How to get a JavaScript object's class?
...bar = function (x) {return x+x;};
foo.bar(21); // == 42
Note: if you are compiling your code with Uglify it will change non-global class names. To prevent this, Uglify has a --mangle param that you can set to false is using gulp or grunt.
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How do I get the last character of a string?
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What if your string is empty?
– Danish Khan
Jan 26 '15 at 19:19
4
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Best way to detect when a user leaves a web page?
What is the best way to detect if a user leaves a web page?
8 Answers
8
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How to check programmatically if an application is installed or not in Android?
...an isAppInstalled = appInstalledOrNot("com.check.application");
if(isAppInstalled) {
//This intent will help you to launch if the package is already installed
Intent LaunchIntent = getPackageManager()
.getLaunchIntentForPackage("com.check.applicatio...
How do I break out of nested loops in Java?
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Like other answerers, I'd definitely prefer to put the loops in a different method, at which point you can just return to stop iterating completely. This answer just shows how the requirements in the question can be met.
You can use break with a label for the outer loop. For example:
publi...
How to prevent a dialog from closing when a button is clicked
... on dialog, it will validate the input and then close the dialog. However, if the input is wrong, I want to remain in the same dialog. Every time no matter what the input is, the dialog should be automatically closed when I click on the "no" button. How can I disable this? By the way, I have used Po...