# Recursion in Javascript

#### Question 1: Sum all numbers

Write a function called `sumRange`. It will take a number and return the sum of all numbers from 1 up to the number passed in.

**Sample:** sumRange(3) returns 6, since 1 + 2 + 3 = 6.

`let count = 1; let data = 0; function sumRange(number){ if(count > number){ console.log(data); return; } data+=count; count++; sumRange(number);`

`}`

`sumRange(4);`

#### Question 2: Power function

Write a function called `power` which takes in a base and an exponent. If the exponent is 0, return 1.

`let count = 1;`

`let data = 1;`

`function power(base,exponent)`

`{ if(exponent==0){ console.log(base); return; }`

`if(count > exponent){ console.log(data); return; } data *= base; count++; power(base,exponent);`

`}`

`power(2,4);`

#### Question 3: Calculate factorial

Write a function that returns the `factorial` of a number. As a quick refresher, a factorial of a number is the result of that number multiplied by the number before it, and the number before that number, and so on, until you reach 1. The factorial of 1 is just 1.

`let count = 1;`

`let data = 1;`

`function factorial(number){ if(count > number)`

`{ console.log(data);`

`return;`

`}`

`data *= count;`

`count++;`

`factorial(number);`

`}`

`factorial(4);`