Question

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Questions

1. Declare two variables, a string and an integer named fullName and birthYear, and set them equal to your name (just first and last, don't include middle names or suffixes) and your birth year.

2. Declare an empty array called myArray.

3. Add the variables from #1 (fullName and birthYear) to myArray using the push method. Print myArray to the console.

4. Declare a variable named splitName, and set it equal to fullName split into two separate objects in an array using the split method. In other words, splitName should equal ["FirstName", "LastName"] when printed to the console. Print splitName to the console.

5. Write a simple function that takes no parameters called sayHello. When called, this function should print "Hello, ____!" to the console, where the blank is equal to the first index value in the splitName array from the previous question. Call the function.

6. Write another function called calcAge. This function should take one parameter, and it should return your implied age (don't worry about months). Call the function passing the current year as the parameter.

7. Starting with the basic function given below, write a function called sumOddNumbers that will print to the console and return the sum of all the odd numbers from 1 to 5000. Consider using a loop, and don't forget to call the function afterwards!

function sumOddNumbers() {

var sum = 0;

// Your code here

console.log(sum);

return sum;

}

Answer 1

defining full name and birth year variables

var fullName="Oliver Queen";

var birthYear=1994;

creating an empty array

var myArray=[];

pushing full name and birth year to the array

myArray.push(fullName);

myArray.push(birthYear);

printing array to the console

console.log(myArray);

splitting name by white space to get an array of strings

var splitName=fullName.split(" ");

printing array

console.log(splitName);

function to print hello <firstname>

function sayHello(){

printing hello with element at index 0 of splitname

console.log("Hello, "+splitName[0]+"!");

}

calling above function

sayHello();

function to calculate and return the age from current year

function calcAge(currentYear){

return currentYear-birthYear;

}

printing age, when current year is 2019

console.log(calcAge(2019));

function to find the sum of odd numbers between 1 to 5000

function sumOddNumbers()

{

var sum = 0;

looping from 1 to 4999, incrementing by 2 each time

for(var i=1;i<5000;i+=2){

adding i to sum

sum+=i;

}

printing and returning sum

console.log(sum);

return sum;

}

calling above function

sumOddNumbers();

/OUTPUT/

["Oliver Queen", 1994]

["Oliver", "Queen"]

"Hello, Oliver!"

25

6250000