aula73.js

const teclasNum=[...document.querySelectorAll(".num")]
const teclasOp=[...document.querySelectorAll(".op")]
const teclaRes=document.querySelector(".res")
const display=document.querySelector(".display")
const ton=document.getElementById("ton")
const tlimpar=document.getElementById("tlimpar")
const tigual=document.getElementById("tigual")
const tcpy=document.getElementById("tcpy")
const teste=document.getElementById("teste")
const calc_aba=document.getElementById("calc_aba")
const calc=document.getElementById("calc")
const img_aba_calc=document.getElementById("img_aba_calc")

let sinal=false
let decimal=false

teclasNum.forEach((el)=>{
	el.addEventListener("click",(evt)=>{
	sinal=false

	if(evt.target.innerHTML==","){
		if(!decimal){
					decimal=true
					if(display.innerHTML=="0"){
					display.innerHTML="0,"
					}else{
					display.innerHTML+=evt.target.innerHTML
					}
		}
	}else{
		if(display.innerHTML=="0"){
	display.innerHTML=""
	}
	display.innerHTML+=evt.target.innerHTML
	}
	})
})
teclasOp.forEach((el)=>{
	el.addEventListener("click",(evt)=>{
	if(!sinal){	
		sinal=true
		if(display.innerHTML=="0"){
		display.innerHTML=""
		}
		if(evt.target.innerHTML=="x"){
			display.innerHTML+="*"
		}else{
			display.innerHTML+=evt.target.innerHTML
		}
		}
	
	})
})
		
tlimpar.addEventListener("click",(evt)=>{
			sinal=false
			decimal=false
			display.innerHTML="0"
})
tigual.addEventListener("click",(evt)=>{
			sinal=false
			decimal=false
			const res=eval(display.innerHTML)
			display.innerHTML=res
})
tcpy.addEventListener("click",(evt)=>{
	navigator.clipboard.writeText(display.innerHTML) //copia a la Area de Transferencia
	})

calc_aba.addEventListener("click",(evt)=>{
		calc.classList.toggle("calc_exibir")
		if(calc.classList.contains("calc_exibir")){
			//img_aba_calc.setAttribute("src","seta-esquerda.svg")
			img_aba_calc.innerHTML="«"
		}else{
		//img_aba_calc.setAttribute("src","seta-direita.svg")
			img_aba_calc.innerHTML="»"
		}
})