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Test if string is a number in Ruby on Rails
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\Z allows to have \n at the end of the string, so "123\n" will pass validation, regardless that it's not fully numeric. But if you use \z then it will be more correct regexp: /\A\d+\z/
– SunnyMagadan
Aug 14 '17 at 9:14
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How do I print a double value without scientific notation using Java?
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123
You could use printf() with %f:
double dexp = 12345678;
System.out.printf("dexp: %f\n", dexp)...
How to highlight text using javascript
.../span>
äöüÄÖÜäöüÄÖÜ
<span>Test123&auml;&ouml;&uuml;&Auml;&Ouml;&Uuml;</span>
</div>
</body>
</html>
By the way, if you search in a database with LIKE,
e.g. WHERE textField LIKE CONCAT('%', @que...
Is it ok to use dashes in Python files when trying to import them?
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123
One other thing to note in your code is that import is not a function. So import(python-code)...
How can I verify a Google authentication API access token?
...New API
post as below
https://oauth2.googleapis.com/tokeninfo?id_token=XYZ123
Response will be as
{
// These six fields are included in all Google ID Tokens.
"iss": "https://accounts.google.com",
"sub": "110169484474386276334",
"azp": "1008719970978-hb24n2dstb40o45d4feuo2ukqmcc6381.apps.goo...
How to extract numbers from a string in Python?
...t will give me 1 and 45 as two different numbers
– ab123
May 24 '18 at 5:17
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show 4 more comments
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HTTP status code for a partial successful request
...tatus xmlns:D='DAV:'>
<D:response>
<D:user>user-123</D:user>
<D:status>success</D:status>
</D:response>
<D:response>
<D:user>user-789</D:user>
<D:status>failure</D:status>
</D:resp...
Formatting a float to 2 decimal places
...crolling through tons of docs every time I need to format some scalar.
$"{1234.5678:0.00}" "1234.57" 2 decimal places, notice that value is rounded
$"{1234.5678,10:0.00}" " 1234.57" right-aligned
$"{1234.5678,-10:0.00}" "1234.57 " left-aligned
$"{1234.5678:0.#####}"...
Why implement interface explicitly?
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Michael BMichael B
7,21233 gold badges2424 silver badges5252 bronze badges
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Remove rows with all or some NAs (missing values) in data.frame
...mptions --------------------
fakeData <- function(m, n, p){
set.seed(123)
m <- matrix(runif(m*n), nrow=m, ncol=n)
m[m<p] <- NA
return(m)
}
df <- cbind( data.frame(id = paste0('ID',seq(row_size)),
stringsAsFactors = FALSE),
data.frame(fak...