Category "null"

Define an "Unknown" or "NULL" value in an enum

I am defining a custom typedef Elements as follows.... typedef enum { Ar, Cl, F, He, H, Kr, Ne, N, O, Rn, Xe } Ele

How to 'cut' on null?

Unix 'file' command has a -0 option to output a null character after a filename. This is supposedly good for using with 'cut'. From man file: -0, --print0

Check If array is null or not in php

I have an array like below which is generated by parsing a xml url. The array is Array ( [Tags] => SimpleXMLElement Object ( [0] =>

How to check for empty value in Javascript?

I am working on a method of retrieving an array of hidden inputs in my form like so <input type="hidden" value="12:34:00" name="timetemp0"> <input typ

Is there a way to set a variable up to place output to stdout or null?

I would like to set up a variable in my code that would ultimately define if I'll see some output or not. "hello" writes to stdout "hello" > $null supresses

What is a 'NoneType' object?

I'm getting this error when I run my python script: TypeError: cannot concatenate 'str' and 'NoneType' objects I'm pretty sure the 'str' means string, but I

How do I check for null values in JavaScript?

How can I check for null values in JavaScript? I wrote the code below but it didn't work. if (pass == null || cpass == null || email == null || cemail == null