Question

How do you define a function in JavaScript ?

• A. void name(){}
• B. function name () { }
• C. def name() { }
• D. var=name() {}

Answer 1

Answer:

B. function name () { }

• A function in JavaScript is similar to a procedure —a set of statements that performs a task or calculates a value.
• But for a procedure to qualify as a function, it should take some input and return an output where there is some obvious relationship between the input and the output.
• A JavaScript function is defined with the function keyword, followed by a name, followed by parentheses ().
• Function names can contain letters, digits, underscores, and dollar signs (same rules as variables).
• The parentheses may include parameter names separated by commas: (parameter1, parameter2, ...)