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What does variable not defined mean in VBA?
This error has the following cause and solution: You used an Option Explicit statement to require the explicit declaration of variables, but you used a variable without declaring it. Explicitly declare the variable, or change the spelling of the variable to match that of the intended variable.
What is typeof undefined?
A variable that has not been assigned a value is of type undefined . A method or statement also returns undefined if the variable that is being evaluated does not have an assigned value. A function returns undefined if a value was not returned .
What does it mean to be undefined?
: not defined: such as. a : not clearly or precisely shown, described, or limited undefined rules undefined powers a vague, undefined feeling of dread … the true outlines of Clinton’s foreign policy remain undefined.—
How do you declare a variable in VBA?
You can implicitly declare a variable in Visual Basic simply by using it in an assignment statement. All variables that are implicitly declared are of type Variant. Variables of type Variant require more memory resources than most other variables.
How to check if a variable was defined or not?
The following code will show if a variable MyVar was defined or not: The following code, which works in batch files for all MS-DOS, Windows and OS/2 versions, uses an alternative way to show if a variable is defined or not:
How to check if variables are defined in batch files?
By default command extensions are enabled. However, to be absolutely sure that they are, either use SETLOCAL ENABLEEXTENSIONS within your NT shell scripts (batch files) or execute those scripts using CMD /X. Read my SETLOCAL page if you intend to use SETLOCAL extension switches.
How to check if a lateinit property is initialised?
Before accessing the property, we can check if it’s initialised or not. On Kotlin 1.2 and up, we can quickly check whether a lateinit property has been initialised or not using a reflection based API. You can read more about this API in the official blog post announcing this update.
What happens if variables are defined in cmd.exe?
Whereas the IF DEFINED method will fail if command extensions are disabled, the second method will fail if MyVar’s value contains doublequotes. Besides, the second method will always fail on the command line in CMD.EXE (though it worked in COMMAND.COM) because undefined variables are treated as literals on the command line.