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JavaScript isset() equivalent
...tion will also evaluate to false if array.foo does exists but is false or 0 (and probably other values as well).
24 A...
How to quit scala 2.11.0 REPL?
...can type exit to quit from REPL. However, in Scala 2.11.0 this doesn't work.
5 Answers
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Why does 2 == [2] in JavaScript?
...
You can look up the comparison algorithm in the ECMA-spec (relevant sections of ECMA-262, 3rd edition for your problem: 11.9.3, 9.1, 8.6.2.6).
If you translate the involved abstract algorithms back to JS, what happens when evaluating 2 == [2] is basically th...
VBA - how to conditionally skip a for loop iteration
I have a for loop over an array. What I want to do is test for a certain condition in the loop and skip to the next iteration if true:
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Why can't the C# constructor infer type?
Why is type inference not supported for constructors the way it is for generic methods?
5 Answers
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What's the role of GetHashCode in the IEqualityComparer in .NET?
...teger representation of the object. Since there is no limit to how much information an object can contain, certain hash codes are shared by multiple objects - so the hash code is not necessarily unique.
A dictionary is a really cool data structure that trades a higher memory footprint in return fo...
Why does Environment.Exit() not terminate the program any more?
...rough Windows Update solved the problem. The noticeable 2 second delay before the crash is no longer present, strongly suggesting that the IsWindow() deadlock got solved. And the program shuts down cleanly and reliably. The update installed patches for Windows Defender, wdboot.sys, wdfilter.sys, ...
Comparing boxed Long values 127 and 128
...if conditions. When these values are less than 128 , the if condition works properly, but when they are greater than or equal to 128 , comparison fails.
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Python group by
..., ('5594916', 'ETH'), ('1550003', 'ETH')]
>>> from collections import defaultdict
>>> res = defaultdict(list)
>>> for v, k in input: res[k].append(v)
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Then, convert that dictionary into the expected format.
>>> [{'type':k, 'items':v} for k,v in res.items()]
...
How to hide Soft Keyboard when activity starts
...eKeyboard()
}
How to show soft keyboard
fun Context.showKeyboard() { // Or View.showKeyboard()
val inputMethodManager = context.getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
inputMethodManager.toggleSoftInput(SHOW_FORCED, HIDE_IMPLICIT_ONLY)
}
Simpler method when simultan...