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script.js
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let string="";
const audio = new Audio("clk.mp3");
let input =document.getElementById('input');
let buttons=document.querySelectorAll('button');
Array.from(buttons).forEach((button) =>{
button.addEventListener('click', (e)=>{
audio.play();
if (e.target.innerHTML=='Back'){
if(string.length==0){
string='';
}
else{
string = string.substring(0, string.length - 1);
}
document.querySelector('input').value=string;
}
else if(e.target.innerHTML=='='){
string=eval(string);
document.querySelector('input').value=string;
}
else if(e.target.innerHTML=='AC'){
string="";
document.querySelector('input').value=string;
}
else if(e.target.innerHTML=='sin'){
string=Math.sin(string);
document.querySelector('input').value=string;
}
else if(e.target.innerHTML=='ln'){
string=Math.log(string);
document.querySelector('input').value=string;
}
else if(e.target.innerHTML=='log'){
string=Math.log10(string);
document.querySelector('input').value=string;
}
else if(e.target.innerHTML=='sqrt'){
string=Math.sqrt(string);
document.querySelector('input').value=string;
}
else if(e.target.innerHTML=='e'){
string=Math.E;
document.querySelector('input').value=string;
}
else if(e.target.innerHTML=='cos'){
string=Math.cos(string);
document.querySelector('input').value=string;
}
else{
console.log(e.target)
string=string +e.target.innerHTML;
document.querySelector('input').value=string;
}
})
})