-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
everything setup functioning and everything
- Loading branch information
Devansh
committed
Nov 4, 2024
1 parent
df1c2aa
commit a48506a
Showing
2 changed files
with
212 additions
and
30 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,39 +1,219 @@ | ||
| document.addEventListener('DOMContentLoaded',function(){ | ||
| function add(a, b,) { | ||
| return a+b; | ||
| document.addEventListener('DOMContentLoaded',() =>{ | ||
|
|
||
| /* functions to be made | ||
| * updatedisplay() | ||
| * operate() //this will be executed when equals is clicked or operator is clicked once again | ||
| * cleardisplay() this is for all clear | ||
| * | ||
| * Varibles to be defined are below | ||
| * firstoperand | ||
| * secondoperand | ||
| * displaynumber | ||
| * firstOperator | ||
| * secondOperator | ||
| * result | ||
| * */ | ||
|
|
||
| //defined all variables below | ||
| let firstOperand = null; | ||
| let secondOperand = null; | ||
| let firstOperator = null; | ||
| let secondOperator = null; | ||
| let displayedNumber = '0'; | ||
| let result =null; | ||
| const buttons = document.querySelectorAll('.calcKeysBtn'); | ||
|
|
||
| //updating the display as per the clicked button | ||
| function changeDisplay(){ | ||
| const screen = document.querySelector('#screenDisplay'); | ||
| screen.textContent = displayedNumber; | ||
| } | ||
| changeDisplay(); | ||
| function clickButton(){ | ||
| buttons.forEach((button)=>{ | ||
| button.addEventListener('click',(event)=>{ | ||
| const clickedButton = event.target; | ||
|
|
||
| if (clickedButton.classList.contains('number')){ | ||
| inputOperand(clickedButton.value); | ||
| changeDisplay(); | ||
| } | ||
| else if(clickedButton.classList.contains('operator')){ | ||
| console.log(clickedButton.value); | ||
| inputOperator(clickedButton.value); | ||
| changeDisplay(); | ||
| }else if(clickedButton.classList.contains('equals')){ | ||
| console.log(clickedButton.value); | ||
| equals(); | ||
| changeDisplay(); | ||
| }else if(clickedButton.classList.contains('percent')){ | ||
| inputPercent(displayedNumber); | ||
| changeDisplay(); | ||
| }else if(clickedButton.classList.contains('sign')){ | ||
| inputSign(displayedNumber); | ||
| changeDisplay(); | ||
| }else if(clickedButton.classList.contains('clear')){ | ||
| clearDisplay(); | ||
| changeDisplay(); | ||
| }else if(clickedButton.classList.contains('decimal')){ | ||
| inputDecimal(clickedButton.value); | ||
| changeDisplay(); | ||
| } | ||
| }) | ||
| }) | ||
|
|
||
| function multiply (a,b){ | ||
| return a*b; | ||
| } | ||
| clickButton(); | ||
|
|
||
| function subtract (a,b){ | ||
| return a-b; | ||
| function inputOperand(operand){ | ||
| if (firstOperator === null ){ | ||
| if(displayedNumber === '0' || displayedNumber === 0 || displayedNumber === firstOperand){ | ||
| displayedNumber = operand; | ||
| }else { | ||
| displayedNumber += operand; | ||
| } | ||
| }else{ | ||
| //3th /5th click - inputs to second operand | ||
| if(displayedNumber === firstOperand){ | ||
| displayedNumber = operand; | ||
| }else{ | ||
| displayedNumber += operand; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| function divide (a,b){ | ||
| return a/b; | ||
| function inputOperator(operator){ | ||
| if(firstOperator != null && secondOperator === null ){ | ||
| //this is the 4th click operation | ||
| secondOperator = operator; | ||
| secondOperand = displayedNumber; | ||
| result = operate(Number(firstOperand),Number(secondOperand),firstOperator); | ||
| displayedNumber = result.toString(); | ||
| firstOperand = displayedNumber; | ||
| result = null; | ||
|
|
||
| }else if(firstOperator != null && secondOperator != null ){ | ||
| //this is the 6th click operation to be performed | ||
| secondOperand = displayedNumber; | ||
| result = operate(Number(firstOperand),Number(secondOperand),secondOperator); | ||
| secondOperator = operator; | ||
| displayedNumber = result.toString(); | ||
| firstOperand = displayedNumber; | ||
| result = null; | ||
| }else{ | ||
| firstOperator = operator; | ||
| firstOperand = displayedNumber; | ||
| } | ||
| } | ||
|
|
||
| function operate(a,b,operator){ | ||
| return operator(a,b); | ||
| // function operate(firstOperand,secondOperand,operator){ | ||
| // if(operator === 'add'){ | ||
| // return firstOperand + secondOperand; | ||
| // } | ||
| // else if(operator === 'subtract'){ | ||
| // return firstOperand - secondOperand; | ||
| // } | ||
| // else if(operator === 'multiply'){ | ||
| // return firstOperand * secondOperand; | ||
| // } | ||
| // else if(operator === 'divide') { | ||
| // if(secondOperand === 0) return 'dumbass'; | ||
| // else{ | ||
| // return firstOperand / secondOperand; | ||
| // } | ||
| // } | ||
| // } | ||
|
|
||
| function operate(firstOperand, secondOperand, operator) { | ||
| switch (operator) { | ||
| case 'add': | ||
| case '+': | ||
| return firstOperand + secondOperand; | ||
| case 'subtract': | ||
| case '-': | ||
| return firstOperand - secondOperand; | ||
| case 'multiply': | ||
| case '*': | ||
| return firstOperand * secondOperand; | ||
| case 'divide': | ||
| case '/': | ||
| if (secondOperand === 0) return 'Error'; | ||
| return firstOperand / secondOperand; | ||
| default: | ||
| return null; | ||
| } | ||
| } | ||
| let displayedAndClickedNumber = 0; | ||
|
|
||
| const displayContent = document.getElementById("screenDisplay"); | ||
| displayContent.textContent = `${displayedAndClickedNumber}`; | ||
|
|
||
| const numberKeys = document.querySelectorAll(".number"); | ||
| function equals(){ | ||
| if(firstOperator === null){ | ||
| displayedNumber = displayedNumber; | ||
|
|
||
| numberKeys.forEach((item) => { | ||
| item.addEventListener("click",(event)=>{ | ||
| displayedAndClickedNumber = event.target.value; | ||
| displayContent.textContent = `${displayedAndClickedNumber}`; | ||
| }) | ||
| }else if(secondOperator != null){ | ||
| //handling the final result | ||
| secondOperand = displayedNumber; | ||
| result = operate(Number(firstOperand),Number(secondOperand),secondOperator); | ||
| console.log(result.toString()); | ||
| if(result === 'dumbass'){ | ||
|
|
||
| displayedNumber = result.toString(); | ||
| }else{ | ||
| displayedNumber = result.toString(); | ||
| firstOperand = displayedNumber; | ||
| secondOperand = null; | ||
| firstOperator = null; | ||
| secondOperator = null; | ||
| result = null; | ||
| } | ||
| }else{ | ||
| //handling the first operation | ||
| secondOperand = displayedNumber ; | ||
| result = operate(Number(firstOperand),Number(secondOperand),firstOperator); | ||
| if(result === 'dumbass'){ | ||
| displayedNumber = result.toString(); | ||
| }else{ | ||
| displayedNumber = result.toString(); | ||
| firstOperand = displayedNumber; | ||
| secondOperand = null; | ||
| firstOperator = null; | ||
| secondOperator = null; | ||
| result = null; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| }); | ||
|
|
||
| function inputDecimal(dot) { | ||
| if(displayedNumber === firstOperand || displayedNumber === secondOperand) { | ||
| displayedNumber = '0'; | ||
| displayedNumber += dot; | ||
| } else if(!displayedNumber.includes(dot)) { | ||
| displayedNumber += dot; | ||
| } | ||
| } | ||
|
|
||
| function inputBackspace() { | ||
| if(firstOperand != null) { | ||
| firstOperand = null; | ||
| changeDisplay() | ||
| } | ||
| } | ||
|
|
||
| function clearDisplay() { | ||
| displayedNumber = '0'; | ||
| firstOperand = null; | ||
| secondOperand = null; | ||
| firstOperator = null; | ||
| secondOperator = null; | ||
| result = null; | ||
| } | ||
| function inputPercent(operand){ | ||
| displayedNumber = (Number(displayedNumber) / 100).toString(); | ||
| } | ||
|
|
||
|
|
||
| function inputSign(operand){ | ||
| displayedNumber = (-Number(displayedNumber)).toString(); | ||
| } | ||
|
|
||
| }) |