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How to determine whether an object has a given property in JavaScript
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Underscore.js or Lodash
if (_.has(x, "y")) ...
:)
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How can I change the thickness of my tag
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– Srikar Appalaraju
Nov 11 '10 at 6:06
11
Yep, we want to use the background color for displaying...
How to check if object (variable) is defined in R?
...:(which(search() == "tools:rstudio") - 1L),
function(pp) exists(_object_name_, where = pp, inherits = FALSE)))
Compare replacing _object_name_ with "data.table" (TRUE) vs. "var" (FALSE)
(of course, if you're not on RStudio, I think the first automatically attached environment is "packa...
How to check if an element is in an array
...ed and work with the first such element,
Then an alternative to contains(_:) as blueprinted Sequence is to first(where:) of Sequence:
let elements = [1, 2, 3, 4, 5]
if let firstSuchElement = elements.first(where: { $0 == 4 }) {
print(firstSuchElement) // 4
// ...
}
In this contrived ex...
Deleting rows with MySQL LEFT JOIN
...g "table as", then specify it to delete.
In the example i delete all table_1 rows which are do not exists in table_2.
DELETE t1 FROM `table_1` t1 LEFT JOIN `table_2` t2 ON t1.`id` = t2.`id` WHERE t2.`id` IS NULL
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SQL Server Restore Error - Access is Denied
...L Server
– tarrball
Dec 7 '15 at 15:06
11
I NEED TO GIVE YOU A HUG. Now seriously, I was about to...
LINQ - Full Outer Join
...roper Expression<Func<>>. I supposed I could replace them with _, __, ___ instead, but that doesn't seem any clearer until C# has a proper parameter wildcard to use instead.
– NetMage
Jul 7 '17 at 23:23
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Python: Ignore 'Incorrect padding' error when base64 decoding
... of which were base64 without padding:
import base64
import re
def decode_base64(data, altchars=b'+/'):
"""Decode base64, padding being optional.
:param data: Base64 data as an ASCII byte string
:returns: The decoded byte string.
"""
data = re.sub(rb'[^a-zA-Z0-9%s]+' % altcha...
Azure table storage returns 400 Bad Request
...e names go.. have a read of this... blogs.msdn.microsoft.com/jmstall/2014/06/12/…
– dreadeddev
Apr 4 '16 at 10:34
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Using an if statement to check if a div is empty
...If a container has a very long HTML content?
– techie_28
Jun 17 '16 at 10:07
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