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How do I get the opposite (negation) of a Boolean in Python?
...eful if you want to use a function that requires a predicate-function or a callback.
For example map or filter:
>>> lst = [True, False, True, False]
>>> list(map(operator.not_, lst))
[False, True, False, True]
>>> lst = [True, False, True, False]
>>> list(filte...
How to debug stream().map(…) with lambda expressions?
...will be executed only after a terminal operation was executed. So when you call stream.map(n -> n * 2) the lambda body isn't being executed at the moment. You need to set a breakpoint and inspect it after a terminal operation was called (collect, in this case).
Check Stream Operations for furthe...
$apply vs $digest in directive testing
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Will $digest also be called on the scope's children?
– pilau
May 17 '14 at 12:09
15
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HTML text input allow only numeric input
... this.selectionEnd;
} else if (Object.prototype.hasOwnProperty.call(this, 'oldValue')) {
this.value = this.oldValue;
if (this.oldSelectionStart !== null &&
this.oldSelectionEnd !== null) {
this.setSelectionRa...
How do I prevent Android taking a screenshot when my app goes to the background?
...bar overflow, etc. — will be insecure. You can fix the Dialog problem by calling getWindow() on it and setting FLAG_SECURE. The rest... gets tricky. See this blog post for more.
share
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improve th...
Auto layout constraints issue on iOS7 in UITableViewCell
I'm using auto layout constraints programmatically to layout my custom UITableView cells and I'm correctly defining the cell sizes in tableView:heightForRowAtIndexPath:
...
Unusual shape of a textarea?
...
In the near future we can use so called css-shapes to achieve this. A div with the contenteditable attribute set to true combined with css-shapes can make a text area any kind of shape.
Currently Chrome Canary already supports css-shapes. An example what is...
Can PHP PDO Statements accept the table or column name as parameter?
... in shorthand parameters to the function that will execute the query dynamically and then use a switch() statement to create a white list of valid values to be used for the table name or column name. That way no user input ever goes directly into the query. So for example:
function buildQuery( $get...
Android TextView with Clickable Links: how to capture clicks?
...focusable is set true. This usually happens with Buttons/ImageButtons. Try calling setFocusable(false) on your TextView.
– Sufian
Sep 11 '14 at 10:59
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DropDownList in MVC 4 with Razor
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On the last line - How do you know what model to call? Where does "tipo" come from?
– Andre
Feb 2 '18 at 10:38
2
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