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Detect Retina Display
...or in iOS4.2 for the iPad: it returns 1.0 in both 1x and 2x modes. You can test this yourself in the simulator.
I test for the -displayLinkWithTarget:selector: method on the main screen which exists in iOS4.x but not iOS3.2, and then check the screen's scale:
if ([[UIScreen mainScreen] respondsToS...
How do I echo and send console output to a file in a bat script?
... offers similar functionality. Get-Process | Tee-Object -file c:\scripts\test.txt
– Kevin Obee
Dec 2 '16 at 12:17
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ReactJS - Does render get called any time “setState” is called?
...lt;/p>
);
}
});
var Main = React.createClass({
onTest: function() {
this.setState({'test':'me'});
},
shouldComponentUpdate: function(nextProps, nextState) {
if (this.state == null)
return true;
if (this.state.test == nextState...
How to tell if a string contains a certain character in JavaScript?
...
I would go with /hello/g.test(your_string). While indexOf works, I think a regex test tells a better story of what you're trying to accomplish. If I'm trying to find a sequence of characters inside a string, the index is irrelevant.
...
Get the POST request body from HttpServletRequest
...r and clean way :
if ("POST".equalsIgnoreCase(request.getMethod()))
{
test = request.getReader().lines().collect(Collectors.joining(System.lineSeparator()));
}
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...
Hidden Features of VB.NET?
...or?
Dim b As Boolean = "file.txt" Like "*.txt"
More from MSDN
Dim testCheck As Boolean
' The following statement returns True (does "F" satisfy "F"?)'
testCheck = "F" Like "F"
' The following statement returns False for Option Compare Binary'
' and True for Option Compare Text (does "F...
How can I tell AngularJS to “refresh”
... answered Sep 19 '16 at 9:35
test30test30
2,7482525 silver badges2323 bronze badges
...
Check if inputs are empty using jQuery
...
I believe that only tests whether the field started out with a value attribute. It doesn't test the actual form field value like you'd need for validation. jsfiddle.net/T89bS ... the field without a value attribute gets slapped with salmon regar...
Determine font color based on background color
...ry intensive colors that were hard to watch and read.
After long hours of testing and trying to solve this problem, I found out that the best solution is to select white font for "dark" colors, and black font for "bright" colors.
Here's an example of function I am using in C#:
Color ContrastColo...
Case insensitive comparison NSString
...he casing for comparing is usually not a wise thing to do (e.g, the turkey test: moserware.com/2008/02/does-your-code-pass-turkey-test.html). When you have language-supported case comparison (such as caseInsensitiveCompare), always use that.
– Ohad Schneider
No...