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Getting a list item by index
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Visual Basic, C#, and C++ all have syntax for accessing the Item property without using its name. Instead, the variable containing the List is used as if it were an array.
List[index]
See for instance:
https://msdn.microsoft.com/en-us/library/0ebtb...
Get last field using awk substr
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this worked for me when receiving from piped input. Totally forgot about perl.
– Chris
May 23 '18 at 21:46
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Math.random() explanation
This is a pretty simple Java (though probably applicable to all programming) question:
5 Answers
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Is there a way to detect if an image is blurry?
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Unless your image is cyclic, you will usually have sharp edges at the borders of the image that lead to very high frequencies
– Niki
Oct 14 '11 at 11:04
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How to get text box value in JavaScript
... name. So you could either use getElementsByName() method to get a list of all elements with this name:
var jobValue = document.getElementsByName('txtJob')[0].value // first element in DOM (index 0) with name="txtJob"
Or you assign an ID to the element:
<input type="text" name="txtJob" id="...
How to simulate a button click using code?
...vent using code in Android? I want to trigger the button click programmatically when some other event occurs.
7 Answers
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What is the purpose of setting a key in data.table?
... updated this answer again (Feb 2016) in light of the new on= feature that allows ad-hoc joins as well. See history for earlier (outdated) answers.
What exactly does setkey(DT, a, b) do?
It does two things:
reorders the rows of the data.table DT by the column(s) provided (a, b) by reference, a...
How to apply two CSS classes to a single element
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<a class="c1 c2">aa</a>
2) To target elements that contain all of the specified classes, use this CSS selector (no space) (ref):
.c1.c2 {
}
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Angularjs minify best practice
...since Angular 1.3.1 you can turn off implicit dependency injection, it's really helpful to solve potential problems with renaming at once (before minification).
Turning off implicit DI, using strictDi config property:
angular.bootstrap(document, ['myApp'], {
strictDi: true
});
Turning off im...
Generate 'n' unique random numbers within a range [duplicate]
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We, could instead of enclosing the random.sample() call inside the try...except block, check if the size of the sample (3 above) is smaller or equal (<=) than the size of the population (range(1, 2) above).
– Hakim
Mar 11 '17 at 19:42
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