Top "Is-empty" questions

Replace empty cells with logical 0's before cell2mat in MATLAB

I have an array of empty cells and ones that I want to convert to a logical array, where the …

matlab matrix cell-array is-empty

How to check if a Stack<T> is empty

Is there some other way, except Stack<T>.Count() == 0, to check if a Stack<T> is …

c# stack is-empty

'IsNullOrWhitespace' in JavaScript?

Is there a JavaScript equivalent to .NET's String.IsNullOrWhitespace so that I can check if a textbox on the client-side …

javascript .net string is-empty isnullorempty

Why does an empty dataframe fail an is.null() test?

please excuse me if my question is quite basic. I created an empty data frame by df <- data.…

r null dataframe is-empty

R: Remove multiple empty columns of character variables

I have a data frame where all the variables are of character type. Many of the columns are completely empty, …

r is-empty isnullorempty

SUMIFS (not blank, and othe conditions)

I am trying to use SUMIFS to sum a couple of conditions. I want my sum range to be column …

excel sumifs is-empty

Recursively remove empty elements and subarrays from a multi-dimensional array

I can't seem to find a simple, straight-forward solution to the age-old problem of removing empty elements from arrays in …

php arrays multidimensional-array filtering is-empty

How to check if a date cell in Excel is empty?

If feels like this should be really easy but I dont get it to work without retrieving the value of …

vba excel date is-empty

Checking if object is empty doesn't work

I am testing the case if my object was empty, so intentionally I made a query that has no match …

node.js is-empty

How to check if an associative array is empty in powershell

$a = @() How do I check if $a above is empty (which it is). I would like to get $true as …

powershell hashtable powershell-4.0 is-empty