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int value under 10 convert to string two digit number
...
i.ToString("00")
or
i.ToString("000")
depending on what you want
Look at the MSDN article on custom numeric format strings for more options: http://msdn.microsoft.com/en-us/library/0c899ak8(VS.71).aspx
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Check for array not empty: any?
...to empty? ?
– RocketR
Nov 17 '12 at 0:00
13
@RocketR you might want to checkout present? method.
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Why doesn't indexOf work on an array IE8?
...exOf = function(elt /*, from*/)
{
var len = this.length >>> 0;
var from = Number(arguments[1]) || 0;
from = (from < 0)
? Math.ceil(from)
: Math.floor(from);
if (from < 0)
from += len;
for (; from < len; from++)
{
if (from in...
What is a method that can be used to increment letters?
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180
Simple, direct solution
function nextChar(c) {
return String.fromCharCode(c.charCodeAt(0) +...
Is it safe to use -1 to set all bits to true?
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20 Answers
20
Active
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How can I determine the direction of a jQuery scroll event?
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704
Check current scrollTop vs previous scrollTop
var lastScrollTop = 0;
$(window).scroll(functio...
Group by multiple columns in dplyr, using string vector input
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data = data.frame(
asihckhdoydkhxiydfgfTgdsx = sample(LETTERS[1:3], 100, replace=TRUE),
a30mvxigxkghc5cdsvxvyv0ja = sample(LETTERS[1:3], 100, replace=TRUE),
value = rnorm(100)
)
# get the columns we want to average within
columns = names(data)[-3]
library(dplyr)
df1 <- data %>%...
How to split a long regular expression into multiple lines in JavaScript?
... split into multiple lines in my JavaScript code to keep each line length 80 characters according to JSLint rules. It's just better for reading, I think.
Here's pattern sample:
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Append integer to beginning of list in Python [duplicate]
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10 Answers
10
Active
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How does the const constructor actually work?
... |
edited Aug 18 '14 at 20:51
superEb
4,9153030 silver badges3838 bronze badges
answered Feb 13 '14 at ...