Which of the following is a correct variable declaration in JavaScript?
A). var Variable = 1;
B). var variable = 1;
C). Both A and B
D). None of the above
What is the best practice for naming variables to avoid issues with case sensitivity?
A). Use only lowercase
B). Use only UPPERCASE
C). Use consistent case conventions
D). Use special characters
Which of the following function names are considered identical in JavaScript?
A). myFunction and MyFunction
B). myfunction and myFunction
C). myFunction and myfunction
D). None of the above
Which of the following will create a case sensitivity error in JavaScript?
A). let firstName = 'John'; let firstname = 'Doe';
B). let FirstName = 'John'; let firstName = 'Doe';
C). let firstName = 'John'; let Firstname = 'Doe';
D). None of the above
Can a function and a variable have the same name with different cases in JavaScript?
A). Yes
B). No
C). Only in strict mode
D). Only in non-strict mode
How will JavaScript handle 'VarName' and 'varName' in the same scope?
A). Treat as the same
B). Treat as different
C). Throw an error
D). Ignore one
How should constants be declared to avoid confusion with variable names?
A). UPPERCASE
B). lowercase
C). camelCase
D). snake_case
What is the recommended naming convention for JavaScript functions?
A). camelCase
B). UPPERCASE
C). snake_case
D). PascalCase
How does JavaScript differentiate between 'myVar' and 'MyVar'?
A). It doesn't, both are the same
B). It treats them as different variables
C). It throws an error
D). None of the above
How does JavaScript interpret the following? let varName = 5; let VarName = 10; console.log(varName, VarName);
A). 5 5
B). 10 10
C). 5 10
D). 10 5