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What happens if a variable is declared without the "var," "let," or "const" keyword?
  • a)
    An error occurs because JavaScript requires variable declarations.
  • b)
    The variable is automatically assigned a global scope.
  • c)
    The variable is only accessible within the current block scope.
  • d)
    The variable is automatically assigned a local scope.
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
What happens if a variable is declared without the "var," &q...
In JavaScript, if a variable is declared without using the 'var', 'let', or 'const' keyword, it is automatically assigned a global scope. This behavior is known as implicit global variable declaration.
When a variable is declared without any explicit declaration keyword ('var', 'let', or 'const'), it becomes a global variable. This means that the variable is accessible from anywhere within the program, including inside functions, blocks, and other scopes.
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What happens if a variable is declared without the "var," "let," or "const" keyword?a)An error occurs because JavaScript requires variable declarations.b)The variable is automatically assigned a global scope.c)The variable is only accessible within the current block scope.d)The variable is automatically assigned a local scope.Correct answer is option 'B'. Can you explain this answer?
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