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Getting and removing the first character of a string
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x <- 'hello stackoverflow'
substring(x, 2, nchar(x))
Idea is select all characters starting from 2 to number of characters in x. This is important when you have unequal number of characters in word or phrase.
Selecting the first letter is trivial as previous answers:
substring(x,1,1)
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Bootstrap: Open Another Modal in Modal
...lass('modal-open');
}
});
UPDATE: When you have stacked modals, all the backdrops appear below the lowermost modal. You can fix that by adding the following CSS:
.modal-backdrop {
visibility: hidden !important;
}
.modal.in {
background-color: rgba(0,0,0,0.5);
}
This will give ...
setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
I know that the auto layout chain consists in basically 3 different process.
2 Answers
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dynamic_cast and static_cast in C++
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Here's a rundown on static_cast<> and dynamic_cast<> specifically as they pertain to pointers. This is just a 101-level rundown, it does not cover all the intricacies.
static_cast< Type* >(ptr)
This takes the pointer in ptr and tries to safely cast it to a pointer of type Type...
Operator overloading : member function vs. non-member function?
...use it can have only one parameter and the other parameter passed automatically is the this pointer. So no standard exists to compare them. On the other hand, overloaded operator declared as a friend is symmetric because we pass two arguments of the same type and hence, they can be compared.
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Do we still need end slashes in HTML5?
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@FreeRadical is correct. This answer is technically incorrect, because it confuses an ending slash with an end tag, and thus misunderstands the spec paragraphs that it quotes. This leads to @YannisDran's confusion. @minitech correctly states what is true.
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If I fork someone else's private Github repo into my account, is it going to appear in my account as
... pretty sure this is a stupid question, but could you elaborate more especially on the last sentence?
– Terence Ponce
Mar 9 '12 at 5:56
1
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How do I skip a match when using Ctrl+D for multiple selections in Sublime Text 2?
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It's not actually Ctrl+K+D, It's Ctrl+K, Ctrl+D. Much easier to type them in series rather than parallel!
– Tim Keating
May 14 '13 at 15:52
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For each row return the column name of the largest value
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If I have two equal columns I usually just pick the first. These are border cases which do not upset my statistical analysis.
– dmvianna
Jul 18 '13 at 23:59
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How can I do something like a FlowLayout in Android?
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thanks romain guy, that really helps. how about just giving the solution? or link?... I dont get how you answer was accepted.
– Johann Hilbold
Aug 2 '12 at 14:52
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