How can you invoke a function stored in a variable doSomething?
A). doSomething();
B). call doSomething;
C). doSomething[];
D). invoke(doSomething);
What will be the output of the following code? var double = function(x) { return x * 2; }; console.log(double(5));
A). 10
B). 5
C). undefined
D). double
How do you create an Immediately Invoked Function Expression (IIFE)?
A). (function() { alert('IIFE'); })();
B). function() { alert('IIFE'); }();
C). (function { alert('IIFE'); })();
D). function() { alert('IIFE'); };
How do you define an anonymous function assigned to a variable?
A). var anon = function() { alert('Anonymous!'); };
B). var anon = function { alert('Anonymous!'); };
C). function anon() { alert('Anonymous!'); }
D). var anon = function anonymous() { alert('Anonymous!'); };
How do you assign a function to a variable in JavaScript?
A). var greet = function() { alert('Hello'); };
B). var greet = function { alert('Hello'); };
C). function greet() { alert('Hello'); }
D). var greet = function alert('Hello');
How do you define a function using a function expression?
A). var myFunc = function() { alert('Hello'); };
B). function myFunc() { alert('Hello'); }
C). var myFunc = function { alert('Hello'); };
D). var myFunc() { alert('Hello'); }
What will be the output of the following code? var multiply = (x, y) => x * y; console.log(multiply(3, 4));
A). 12
B). 34
C). multiply
D). undefined
Which of the following is an example of an arrow function assigned to a variable?
A). var add = (a, b) => { return a + b; };
B). var add = (a, b) => return a + b;
C). var add = (a, b) => { a + b };
D). var add = (a, b) { return a + b; };
What is the output of the following code? function makeAdder(a) { return function(b) { return a + b; }; } var add5 = makeAdder(5); console.log(add5(2));
A). 7
B). 5
C). add5
D). makeAdder
How can you store a function as a property of an object?
A). var obj = { method: function() { alert('Hello'); } };
B). var obj = { method: alert('Hello'); };
C). var obj = { method: function { alert('Hello'); } };
D). var obj = { function() { alert('Hello'); } };