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open-ended function arguments with TypeScript
...ritten as,
function sum(...numbers: number[]) {
var aggregateNumber = 0;
for (var i = 0; i < numbers.length; i++)
aggregateNumber += numbers[i];
return aggregateNumber;
}
This will then type check correctly with
console.log(sum(1, 5, 10, 15, 20));
...
Git: how to reverse-merge a commit?
...
106
To create a new commit that 'undoes' the changes of a past commit, use:
$ git revert <commi...
All but last element of Ruby array
...
130
Perhaps...
a = t # => [1, 2, 3, 4]
a.first a.size - 1 # => [1, 2, 3]
or
...
Is PHP's count() function O(1) or O(n) for arrays?
...
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edited Apr 20 '13 at 22:03
John Carter
49k2424 gold badges100100 silver badges136136 bronze badges
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How to allow only numeric (0-9) in HTML inputbox using jQuery?
...an input text field in which I want to allow only numeric characters like (0,1,2,3,4,5...9) 0-9.
68 Answers
...
Changing names of parameterized tests
...
302
This feature has made it into JUnit 4.11.
To use change the name of parameterized tests, you s...
Why does Bootstrap set the line-height property to 1.428571429?
...ning their line-height off of a 14px font-size. The target line-height is 20px:
20px ÷ 14px = 1.428571429
When determining your line-height, you want to make sure you have ample white space between your rows. This allows for ascenders and descenders without intruding on other rows. Also having am...
How to hide one item in an Android Spinner
...
50
To hide an arbitrary item or more than one item I think that you can implement your own adapter ...
Plot correlation matrix into a graph
...trix
nrowcol <- length(ver)
cor <- matrix(runif(nrowcol*nrowcol, min=0.4), nrow=nrowcol, ncol=nrowcol, dimnames = list(hor, ver))
for (i in 1:nrowcol) cor[i,i] = 1
#Build the plot
rgb.palette <- colorRampPalette(c("blue", "yellow"), space = "rgb")
levelplot(cor, main="stage 12-14 array cor...
What do single quotes do in C++ when used on multiple characters?
...
It's a multi-character literal. 1952805748 is 0x74657374, which decomposes as
0x74 -> 't'
0x65 -> 'e'
0x73 -> 's'
0x74 -> 't'
Edit:
C++ standard, §2.14.3/1 - Character literals
(...) An ordinary character literal that contains more than
one c-char...