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Convert nullable bool? to bool
...?
bool? x = ...;
if (x ?? true) {
}
The ?? with nullable values works by examining the provided nullable expression. If the nullable expression has a value the it's value will be used else it will use the expression on the right of ??
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Setting UIButton image results in blue button in iOS 7
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The issue is the TintColor. By default, iOS throws a blue tint color over every button. You can get around it through 3 ways.
Change the tint color. [button setTintColor:[UIColor blackColor]];
This may color your image in ways you don't want it to.
As...
How to view file history in Git?
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By default gitk shows the diff plus 10 lines of context, but what if you want to see a snapshot of the whole file? Simply set "Lines of context" to a large value (e.g. 100000). Then you can flip back and forth between commits...
Javascript: Round up to the next multiple of 5
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This can be accomplished more simply by using Math.round
– Spencer Stolworthy
Jan 16 at 15:43
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Check if string contains only digits
...readable way to check if a string contains only digits.
This method works by splitting the string into an array using the spread operator, and then uses the every() method to test whether all elements (characters) in the array are included in the string of digits '0123456789':
const digits_onl...
How to calculate dp from pixels in android programmatically [duplicate]
...from, and the return value is the "complex floating point value multiplied by the appropriate metrics depending on its unit." applyDimension cannot be used to convert px->dp, for that you must do it as described here: stackoverflow.com/a/17880012/504611
– Vicky Chijwani
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Javascript Object push() function
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I think this is easier if remove the object if its status is invalid, by doing.
for(var index in data){
if(data[index].Status == "Invalid"){
delete data[index];
}
}
And finally you don't need to create a var temp –
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Keyboard shortcut to “untab” (move a block of code to the left) in eclipse / aptana?
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Don't know if anyone is still looking here, but you can do this by going to Window menu > Preferences, then open the General list, choose keys. Scroll down the list of keys until you see "Shift Left". Click that. Below that you'll see some boxes, one of which lets you bind a key. It wo...
How to get document height and width without using jquery
...ur body has height 0. If you don't change its display type that's the case by default. Check it in the DOM inspector.
– Erik Aigner
May 28 '18 at 6:25
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Get selected option text with JavaScript
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Plain JavaScript
var sel = document.getElementById("box1");
var text= sel.options[sel.selectedIndex].text;
jQuery:
$("#box1 option:selected").text();
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