gs gs106 Lexical Structures - Defining and Invoking JavaScript Functions - Quiz No.1
gs gs106 Javascript Quiz
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Question 1: The function definitions in JavaScript begins with _____________
Identifier and Parentheses
Return type and Identifier
Return type, Function keyword, Identifier and Parentheses
Identifier and Return type
Question 2: What will be the output of the following JavaScript code?
function printprops(o) { for(var p in o) console.log(p + ": " + o[p] + "\n"); }
Prints the contents of each property of o
Returns undefined
Prints only one property
Prints the address of elements
Question 3: When does the function name become optional in JavaScript?
When the function is defined as a looping statement
When the function is defined as expressions
When the function is predefined
when the function is called
Question 4: What is the purpose of a return statement in a function?
Returns the value and continues executing rest of the statements, if any
Returns the value and stops the program
Returns the value and stops executing the function
Stops executing the function and returns the value
Question 5: What will happen if a return statement does not have an associated expression?
It returns the value 0
It will throw an exception
It returns the undefined value
It will throw an error
Question 6: A function with no return value is called ___________
Procedures
Method
Static function
Dynamic function
Question 7: The function stops its execution when it encounters?
continue statement
break statement
goto statement
return statement
Question 8: Which keyword is used to define the function in javascript?
void
int
function
main
Question 9: Which is an equivalent code to invoke a function m of class o that expects two arguments x and y?
o(x,y);
o.m(x) && o.m(y);
m(x,y);
o.m(x,y);
Question 10: What will be the equivalent code of the following JavaScript code?
o.m(x,y);
o.m(x) && o.m(y);
o[“m”](x,y);
o(m)[“x”,”y”];
o.m(x && y);
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