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Using custom std::set comparator
I am trying to change the default order of the items in a set of integers to be lexicographic instead of numeric, and I can't get the following to compile with g++:
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increment date by one month
Let's say I have a date in the following format: 2010-12-11 (year-mon-day)
17 Answers
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Adding a column to a data.frame
I have the data.frame below. I want to add a column that classifies my data according to column 1 ( h_no ) in that way that the first series of h_no 1,2,3,4 is class 1, the second series of h_no (1 to 7) is class 2 etc. such as indicated in the last column.
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chart.js load totally new data
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I had huge problems with this
First I tried .clear() then I tried .destroy() and I tried setting my chart reference to null
What finally fixed the issue for me: deleting the <canvas> element and then reappending a new <canvas> to the parent container
There's a million ways to do th...
How to return an array from JNI to Java?
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If you've examined the documentation and still have questions that should be part of your initial question. In this case, the JNI function in the example creates a number of arrays. The outer array is comprised of an 'Object' ...
Why does this go into an infinite loop?
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Note: Originally I posted C# code in this answer for purposes of illustration, since C# allows you to pass int parameters by reference with the ref keyword. I've decided to update it with actual legal Java code using the first MutableInt cl...
How to use @Nullable and @Nonnull annotations more effectively?
...nnotations could be helpful in preventing NullPointerException s but they do not propagate very far.
9 Answers
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How to get the mouse position without events (without moving the mouse)?
...sible to get the mouse position with JavaScript after page loads without any mouse movement event (without moving the mouse)?
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In jQuery how can I set “top,left” properties of an element with position values relative to the par
.offset([coordinates]) method set the coordinates of an element but only relative to the document. Then how can I set coordinates of an element but relative to the parent?
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Why is lazy evaluation useful?
I have long been wondering why lazy evaluation is useful. I have yet to have anyone explain to me in a way that makes sense; mostly it ends up boiling down to "trust me".
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