Checking the input if its empty
576
How can I check for an empty/undefined/null string in JavaScript?
88494
How to check directory is empty?
10393
Form validation if/else with JQuery
15792
Waiting for user input with a timeout
93804
How to check for a Null value in VB.NET
31372
Why does this accept invalid input?
133210
Why isn't String.Empty a constant?
133050
How do I check if an image field is empty in a template file?
54230
CSH - How to check if input is NOT number
70161
How do I check if my EditText fields are empty?
15435
how to check if $1 and $2 are null?
117601
Using VBA to check if below cell is empty
90598
PHP considers null is equal to zero
118643
Validating input using java.util.Scanner
5377
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
126789
Read user input inside a loop
98704
Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?