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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,11 +1,11 @@ | ||
| ## Javascript Calculator App | ||
| ___ | ||
| This is a simple calculator with basic functions(+, /, *, -, %). | ||
| It is built on vanilla javascript. | ||
| ### Tasks: | ||
| * [x] Basic calculating functions | ||
| * [ ] Full operation from keyboard | ||
| * [ ] Responsiveness to screen changes | ||
| ___ | ||
| The first version is temporarily hosted on this domain: | ||
| [Calculator](https://monumental-croquembouche-a85612.netlify.app/)# javascript-calculator | ||
| ## Javascript Calculator App | ||
| ___ | ||
| This is a simple calculator with basic functions(+, /, *, -, %). | ||
| It is built on vanilla javascript. | ||
| ### Tasks: | ||
| * [x] Basic calculating functions | ||
| * [ ] Full operation from keyboard | ||
| * [ ] Responsiveness to screen changes | ||
| ___ | ||
| The first version is temporarily hosted on this domain: | ||
| [Calculator](https://monumental-croquembouche-a85612.netlify.app/)# javascript-calculator |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,144 +1,147 @@ | ||
| const display1El = document.querySelector('.d1'); | ||
| const display2El = document.querySelector('.d2'); | ||
| const display3El = document.querySelector('.d3'); | ||
| const numbersEl = document.querySelectorAll('.number'); | ||
| const operationsEl = document.querySelectorAll('.operation'); | ||
| const equalEl = document.querySelector('.equals'); | ||
| const clearAllEl = document.querySelector('.clear-all'); | ||
| const clearLastEl = document.querySelector('.clear-last'); | ||
|
|
||
|
|
||
| let dis1Num = ''; | ||
| let dis2Num = ''; | ||
| let resultNum = ''; | ||
| let lastOperation = null; | ||
| let haveDot = false; | ||
|
|
||
| numbersEl.forEach (number => { | ||
| number.addEventListener('click', (e)=>{ | ||
| if (e.target.innerText === '.' && !haveDot){ | ||
| haveDot = true; | ||
| }else if(e.target.innerText === '.' && haveDot){ | ||
| return; | ||
| } | ||
| dis2Num += e.target.innerText; | ||
| display2El.innerText = dis2Num; | ||
| }) | ||
| }); | ||
|
|
||
| operationsEl.forEach(operation =>{ | ||
| operation.addEventListener ('click', (e)=>{ | ||
| if (!dis2Num) return; | ||
| haveDot=false; | ||
| const operationName = e.target.innerText; | ||
| if(dis1Num && dis2Num && lastOperation){ | ||
| mathOperation(); | ||
| }else{ | ||
| result= parseFloat(dis2Num); | ||
| } | ||
| clearVar(operationName); | ||
| lastOperation = operationName; | ||
| console.log(result); | ||
| }) | ||
| }); | ||
|
|
||
| function clearVar(name = " ") { | ||
| dis1Num += dis2Num +" "+ name +" "; | ||
| display1El.innerText = dis1Num; | ||
| display2El.innerText = ""; | ||
| dis2Num=""; | ||
| display3El.innerText = result; | ||
| } | ||
|
|
||
| function mathOperation(){ | ||
| if (lastOperation === '/') { | ||
| result = parseFloat(result) / parseFloat(dis2Num); | ||
| }else if (lastOperation === 'X') { | ||
| result = parseFloat(result) * parseFloat(dis2Num); | ||
| }else if (lastOperation === '-') { | ||
| result = parseFloat(result) - parseFloat(dis2Num); | ||
| }else if (lastOperation === '+') { | ||
| result = parseFloat(result) + parseFloat(dis2Num); | ||
| }else if (lastOperation === '%') { | ||
| result = parseFloat(result) % parseFloat(dis2Num); | ||
| } | ||
| } | ||
|
|
||
| equalEl.addEventListener("click", () => { | ||
| if (!dis2Num || !dis1Num) return; | ||
| haveDot = false; | ||
| mathOperation(); | ||
| clearVar(); | ||
| display2El.innerText = result; | ||
| display3El.innerText = ""; | ||
| dis2Num = result; | ||
| dis1Num = ""; | ||
| }); | ||
|
|
||
| clearAllEl.addEventListener('click', (e) => { | ||
| display1El.innerText = '0'; | ||
| display2El.innerText = '0'; | ||
| display3El.innerText = '0'; | ||
| dis1Num = ''; | ||
| dis2Num = ''; | ||
| result = ''; | ||
|
|
||
| }) | ||
|
|
||
| clearLastEl.addEventListener('click', (e) => { | ||
| display2El.innerText = ''; | ||
| dis2Num = ''; | ||
| }) | ||
|
|
||
| window.addEventListener('keydown', (e)=> { | ||
| if( | ||
| e.key === '0' || | ||
| e.key === '1' || | ||
| e.key === '2' || | ||
| e.key === '3' || | ||
| e.key === '4' || | ||
| e.key === '5' || | ||
| e.key === '6' || | ||
| e.key === '7' || | ||
| e.key === '8' || | ||
| e.key === '9' || | ||
| e.key === '.' | ||
| ){ | ||
| clickButtonEl(e.key) | ||
| } else if( | ||
|
|
||
| e.key === '+' || | ||
| e.key === '-' || | ||
| e.key === '/' || | ||
| e.key === '%' | ||
| ){ | ||
| clickOperation(e.key); | ||
|
|
||
| } | ||
| else if (e.key === '*'){ | ||
| clickOperation('X'); | ||
| } | ||
| else if (e.key === 'Enter'|| e.key === '='){ | ||
| clickEqual(); | ||
| } | ||
| }); | ||
|
|
||
| function clickButtonEl(key){ | ||
| numbersEl.forEach(button =>{ | ||
| if(button.innerText === key){ | ||
| button.click(); | ||
| } | ||
| }) | ||
| } | ||
|
|
||
| function clickOperation(key){ | ||
| operationsEl.forEach(button =>{ | ||
| if(button.innerText === key){ | ||
| button.click(); | ||
| } | ||
| }) | ||
| } | ||
|
|
||
| function clickEqual(){ | ||
| equalEl.click(); | ||
| } | ||
| const display1El = document.querySelector('.d1'); | ||
| const display2El = document.querySelector('.d2'); | ||
| const display3El = document.querySelector('.d3'); | ||
| const numbersEl = document.querySelectorAll('.number'); | ||
| const operationsEl = document.querySelectorAll('.operation'); | ||
| const equalEl = document.querySelector('.equals'); | ||
| const clearAllEl = document.querySelector('.clear-all'); | ||
| const clearLastEl = document.querySelector('.clear-last'); | ||
|
|
||
|
|
||
| let dis1Num = ''; | ||
| let dis2Num = ''; | ||
| let resultNum = ''; | ||
| let lastOperation = null; | ||
| let haveDot = false; | ||
|
|
||
| numbersEl.forEach (number => { | ||
| number.addEventListener('click', (e)=>{ | ||
| if (e.target.innerText === '.' && !haveDot){ | ||
| haveDot = true; | ||
| }else if(e.target.innerText === '.' && haveDot){ | ||
| return; | ||
| } | ||
| dis2Num += e.target.innerText; | ||
| display2El.innerText = dis2Num; | ||
| }) | ||
| }); | ||
|
|
||
| operationsEl.forEach(operation =>{ | ||
| operation.addEventListener ('click', (e)=>{ | ||
| if (!dis2Num) return; | ||
| haveDot=false; | ||
| const operationName = e.target.innerText; | ||
| if(dis1Num && dis2Num && lastOperation){ | ||
| mathOperation(); | ||
| }else{ | ||
| result= parseFloat(dis2Num); | ||
| } | ||
| clearVar(operationName); | ||
| lastOperation = operationName; | ||
| console.log(result); | ||
| }) | ||
| }); | ||
|
|
||
| function clearVar(name = " ") { | ||
| dis1Num += dis2Num +" "+ name +" "; | ||
| display1El.innerText = dis1Num; | ||
| display2El.innerText = ""; | ||
| dis2Num=""; | ||
| display3El.innerText = result; | ||
| } | ||
|
|
||
| function mathOperation(){ | ||
| if (lastOperation === '/') { | ||
| result = parseFloat(result) / parseFloat(dis2Num); | ||
| }else if (lastOperation === 'X') { | ||
| result = parseFloat(result) * parseFloat(dis2Num); | ||
| }else if (lastOperation === '-') { | ||
| result = parseFloat(result) - parseFloat(dis2Num); | ||
| }else if (lastOperation === '+') { | ||
| result = parseFloat(result) + parseFloat(dis2Num); | ||
| }else if (lastOperation === '%') { | ||
| result = (parseFloat(result) / parseFloat(dis2Num))* 100; | ||
| } | ||
| } | ||
|
|
||
| equalEl.addEventListener("click", () => { | ||
| if (!dis2Num || !dis1Num) return; | ||
| haveDot = false; | ||
| mathOperation(); | ||
| clearVar(); | ||
| display2El.innerText = result; | ||
| display3El.innerText = ""; | ||
| dis2Num = result; | ||
| dis1Num = ""; | ||
| }); | ||
|
|
||
| clearAllEl.addEventListener('click', (e) => { | ||
| display1El.innerText = '0'; | ||
| display2El.innerText = '0'; | ||
| display3El.innerText = '0'; | ||
| dis1Num = ''; | ||
| dis2Num = ''; | ||
| result = ''; | ||
|
|
||
| }) | ||
|
|
||
| clearLastEl.addEventListener('click', (e) => { | ||
| display2El.innerText = ''; | ||
| dis2Num = ''; | ||
| }) | ||
|
|
||
| window.addEventListener('keydown', (e)=> { | ||
| if( | ||
| e.key === '0' || | ||
| e.key === '1' || | ||
| e.key === '2' || | ||
| e.key === '3' || | ||
| e.key === '4' || | ||
| e.key === '5' || | ||
| e.key === '6' || | ||
| e.key === '7' || | ||
| e.key === '8' || | ||
| e.key === '9' || | ||
| e.key === '.' | ||
| ){ | ||
| clickButtonEl(e.key) | ||
| } else if( | ||
|
|
||
| e.key === '+' || | ||
| e.key === '-' || | ||
| e.key === '/' || | ||
| e.key === '%' | ||
| ){ | ||
| clickOperation(e.key); | ||
|
|
||
| } | ||
| else if (e.key === '*'){ | ||
| clickOperation('X'); | ||
| } | ||
| else if (e.key === 'Enter'|| e.key === '='){ | ||
| clickEqual(); | ||
| } | ||
| }); | ||
|
|
||
| function clickButtonEl(key){ | ||
| numbersEl.forEach(button =>{ | ||
| if(button.innerText === key){ | ||
| button.click(); | ||
| } | ||
| }) | ||
| } | ||
|
|
||
| function clickOperation(key){ | ||
| operationsEl.forEach(button =>{ | ||
| if(button.innerText === key){ | ||
| button.click(); | ||
| } | ||
| }) | ||
| } | ||
|
|
||
| function clickEqual(){ | ||
| equalEl.click(); | ||
| } | ||
|
|
||
| if(numbersEl.click()){ | ||
| } |
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