14 lines
448 B
JavaScript
14 lines
448 B
JavaScript
const button = document.querySelector("button")
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const eredmeny = document.getElementById("eredmeny")
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button.addEventListener("click", () => {
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let szam1 = document.getElementById("szam1")
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let szam2 = document.getElementById("szam2")
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if (isNaN(szam1.value) || isNaN(szam2.value)) {
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eredmeny.innerHTML += "Hibás adatok!"
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return
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}
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eredmeny.innerHTML = `Eredmény: ${Number(szam1.value) + Number(szam2.value)}`
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}) |