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script.js
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// themes
let allLi = document.querySelectorAll('li')
allLi.forEach((li, i) => {
li.addEventListener('click', e => {
let indicator = document.querySelector('.indicator')
indicator.style.transform = `translateX(calc(${i * 43}px))`
console.log(i)
if(i === 0) {
document.documentElement.style.setProperty('--col2', '#3b38f3')
} else if(i === 1) {
document.documentElement.style.setProperty('--col2', '#8d0808')
}
})
})
// keybord feedback animation
let equalKey = document.getElementById('equal-key')
let bsKey = document.getElementById('backspace-key')
let moreMinusKey = document.getElementById('moreMinus-key')
let percentKey = document.getElementById('percent-key')
let divisionKey = document.getElementById('division-key')
let sevenKey = document.getElementById('seven-key')
let eightKey = document.getElementById('eight-key')
let nineKey = document.getElementById('nine-key')
let multiplicationKey = document.getElementById('mutiplication-key')
let fourKey = document.getElementById('four-key')
let fiveKey = document.getElementById('five-key')
let sixKey = document.getElementById('six-key')
let minosKey = document.getElementById('minos-key')
let oneKey = document.getElementById('one-key')
let twoKey = document.getElementById('two-key')
let threeKey = document.getElementById('three-key')
let plusKey = document.getElementById('plus-key')
let zeroKey = document.getElementById('zero-key')
let pointKey = document.getElementById('point-key')
document.addEventListener('keyup', animationUp)
document.addEventListener('keydown', animationDown)
function animationUp(keyp) {
switch (keyp.key) {
case '=':
equalKey.classList.toggle('active')
break
case 'Enter':
equalKey.classList.toggle('active')
break
case 'Backspace':
bsKey.classList.toggle('active')
break
case '?':
moreMinusKey.classList.toggle('active')
break
case '%':
percentKey.classList.toggle('active')
break
case '/':
divisionKey.classList.toggle('active')
break
case '7':
sevenKey.classList.toggle('active')
break
case '8':
eightKey.classList.toggle('active')
break
case '9':
nineKey.classList.toggle('active')
break
case '*':
multiplicationKey.classList.toggle('active')
break
case '4':
fourKey.classList.toggle('active')
break
case '5':
fiveKey.classList.toggle('active')
break
case '6':
sixKey.classList.toggle('active')
break
case '-':
minosKey.classList.toggle('active')
break
case '1':
oneKey.classList.toggle('active')
break
case '2':
twoKey.classList.toggle('active')
break
case '3':
threeKey.classList.toggle('active')
break
case '+':
plusKey.classList.toggle('active')
break
case '0':
zeroKey.classList.toggle('active')
break
case ',':
pointKey.classList.toggle('active')
break
case '.':
pointKey.classList.toggle('active')
break
default:
break
}
}
function animationDown(keyp) {
switch (keyp.key) {
case '=':
equalKey.classList.toggle('active')
break
case 'Enter':
equalKey.classList.toggle('active')
break
case 'Backspace':
bsKey.classList.toggle('active')
break
case '?':
moreMinusKey.classList.toggle('active')
break
case '%':
percentKey.classList.toggle('active')
break
case '/':
divisionKey.classList.toggle('active')
break
case '7':
sevenKey.classList.toggle('active')
break
case '8':
eightKey.classList.toggle('active')
break
case '9':
nineKey.classList.toggle('active')
break
case '*':
multiplicationKey.classList.toggle('active')
break
case '4':
fourKey.classList.toggle('active')
break
case '5':
fiveKey.classList.toggle('active')
break
case '6':
sixKey.classList.toggle('active')
break
case '-':
minosKey.classList.toggle('active')
break
case '1':
oneKey.classList.toggle('active')
break
case '2':
twoKey.classList.toggle('active')
break
case '3':
threeKey.classList.toggle('active')
break
case '+':
plusKey.classList.toggle('active')
break
case '0':
zeroKey.classList.toggle('active')
break
case ',':
pointKey.classList.toggle('active')
break
case '.':
pointKey.classList.toggle('active')
break
default:
break
}
}
// key mapping
document.addEventListener('keypress', keyboardLis)
document.addEventListener('keydown', backspaceLis)
function keyboardLis(keyp) {
if ((keyp.key>=0 && keyp.key<=9) || keyp.key=='*' || keyp.key=='/' || keyp.key=='-' || keyp.key=='+' || keyp.key==',' || keyp.key=='.') {
if (keyp.key==',') {
insertValues('.')
} else {
insertValues(keyp.key)
}
} else if (keyp.key=='%') {
percentCalc()
} else if (keyp.key=='Enter' || keyp.key=='=') {
calculate()
} else if (keyp.key=='Delete') {
displayClear()
} else if (keyp.key=='?') {
invertSign()
}
}
function backspaceLis(keyp) {
if (keyp.keyCode=='8') {
displayClear()
}
}
// getting and treating values
let displayCalc = document.getElementById('displayCalc')
function insertValues(value) {
displayCalc.value += value
}
function calculate() {
if (displayCalc.value == '') {
displayCalc.value = '0'
} else {
let resultCalc = eval(displayCalc.value)
displayCalc.value = resultCalc
}
}
function displayClear() {
displayCalc.value = ''
}
function invertSign() {
if (displayCalc.value == '') {
displayCalc.value = '0'
} else {
calculate()
displayCalc.value *= -1
}
}
function percentCalc() {
if (displayCalc.value == '') {
displayCalc.value = '0'
} else {
calculate()
resultPercentCalc = displayCalc.value / 100
displayCalc.value = resultPercentCalc
}
}