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Samuel singletary #46

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codysingletary92 Oct 18, 2020
e25fa02
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codysingletary92 Oct 18, 2020
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64 changes: 59 additions & 5 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,12 @@
/* Create variables for principal, interest rate, and years. Assign them the values 200000, 0.05, and 30 respectively. Create another value called name and give it the value of your own name.
*/

var log = console.log;


var principal = 200000;
var interestRate = 0.05;
var years = 30;
var name = "Cody"


// 🏡 Task 1.5: Simple Math
Expand All @@ -15,7 +19,8 @@
(2) Create another variable called `periods` and give it the value of years*12.
*/


var monthlyInterestRate = interestRate / 12;
var periods = years * 12;


// 🏡 Task 2: Harder Math
Expand All @@ -35,7 +40,11 @@ Hint #2: you'll need to use the `math` object for parts of this calculation!
When your math is correct, monthlyRate will equal 1073.64
*/


var n1 = (1 + monthlyInterestRate)**periods;
var numerator = principal * n1 * monthlyInterestRate;
var denominator = n1 - 1;
var monthlyRate = numerator/denominator
log(monthlyRate)


// 🏡 Task 3: Function
Expand All @@ -46,15 +55,32 @@ If your name is `Oscar` mortgageCalculator() should return "Oscar, your monthly





// 🏡 Task 4: Arguments and Parameters
/* Substitute the variables in your functions for parameters such that you can substitute `P`, `I`, and `N` when you call the function.

For example,
mortgageCalculator(200000, 0.05, 30); <-- should return 1,073.64
*/

function mortgageCalculator (P, I, N, C) {

let periods = N * 12;
let interest = I / 12;
let N1 = (1 + interest) ** periods;
let numerator = P * N1 * interest;
let denominator = N1 - 1;
let monthlyRate = numerator/denominator

if (C > 740) {
monthlyRate = monthlyRate * .95
}
else if ( C < 660) {
monthlyRate = monthlyRate * 1.05
}

log(name+", your monthly rate is $"+monthlyRate)
}




Expand Down Expand Up @@ -86,8 +112,36 @@ For example, variableInterestRate(200000, 0.04, 30) should console.log:
"{Name}, with an interest rate of 0.06, your monthly rate is $1199"
*/

function variableInterestRate (P, I, N, C) {


var i;
for (i=0; i < 10; i++){

let periods = N * 12;
let interest = I / 12;
let N1 = (1 + interest) ** periods;
let numerator = P * N1 * interest;
let denominator = N1 - 1;
let monthlyRate = numerator/denominator

if (C > 740) {
monthlyRate = monthlyRate * .95
}
else if ( C < 660) {
monthlyRate = monthlyRate * 1.05
}


log(name+", with and interest rate of "+I.toFixed(3)+" your monthly rate is $"+monthlyRate)
I = I + .005
}



}

variableInterestRate(200000, .05, 30)

// 🌟🌟🌟 STRETCH 🌟🌟🌟//

Expand Down