Which of the following is an invalid variable? Question 14Answera.1varb._var_c.var2
Question
Which of the following is an invalid variable?
Question 14
Answer:
a. 1var
b. _var
c. var
d. 2
Solution
To determine which of the options is an invalid variable in programming, let's analyze each option based on typical programming rules:
- 1var: This is invalid because variable names cannot start with a number.
- _var: This is valid as variable names can start with an underscore.
- c.var: This could be valid in certain contexts (like object properties) but typically, dot notation is not used for variable names.
- var2: This is valid since it starts with a letter and follows standard naming conventions.
Final Answer
The invalid variable is 1var.
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