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Finding Variable Type in JavaScript
In Java, you can use instanceOf or getClass() on a variable to find out its type.
9 Answers
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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
...ctivity to push to the user interface and threads don't have that.
So one workaround is to give the thread a link to the parent Activity and Toast to that.
Put this code in the thread where you want to send a Toast message:
parent.runOnUiThread(new Runnable() {
public void run() {
Toas...
list.clear() vs list = new ArrayList(); [duplicate]
...st.java.html
public void clear() {
modCount++;
// Let gc do its work
for (int i = 0; i < size; i++)
elementData[i] = null;
size = 0;
}
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Converting a Date object to a calendar object [duplicate]
So I get a date attribute from an incoming object in the form:
3 Answers
3
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A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
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Yes, the code is standard conforming. The + triggers a conversion to a plain old function pointer for the lambda.
What happens is this:
The compiler sees the first lambda ([]{}) and generates a closure object according to §5.1.2. As the lambda is a non-c...
How to check if a string in Python is in ASCII?
I want to I check whether a string is in ASCII or not.
16 Answers
16
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In Python, how do I iterate over a dictionary in sorted key order?
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Haven't tested this very extensively, but works in Python 2.5.2.
>>> d = {"x":2, "h":15, "a":2222}
>>> it = iter(sorted(d.iteritems()))
>>> it.next()
('a', 2222)
>>> it.next()
('h', 15)
>>> it.next()
('x', 2)
>>>
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Is it possible to simulate key press events programmatically?
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A non-jquery version that works in both webkit and gecko:
var keyboardEvent = document.createEvent("KeyboardEvent");
var initMethod = typeof keyboardEvent.initKeyboardEvent !== 'undefined' ? "initKeyboardEvent" : "initKeyEvent";
keyboardEvent[initMet...
Short circuit Array.forEach like calling break
How can I do this using the new forEach method in JavaScript? I've tried return; , return false; and break . break crashes and return does nothing but continue iteration.
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Is it possible to make a Tree View with Angular?
...isplay data in a tree structure in a web app. I was hoping to use Angular for this task.
14 Answers
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