👉 A slue in the context of computer programming refers to a variable or function that has been defined with a specific name but whose value is not assigned. In other words, it's like a placeholder that doesn't actually store any data. This can happen if the programmer forgets to assign the value to the variable, or if they accidentally define it without assigning a value. For example: ``` var myVariable = "Hello"; ``` In this case, `myVariable` is a sl
