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- <!DOCTYPE html>
- <html lang="no">
- <head>
- <meta charset="UTF-8">
- <title>Kalkulator</title>
- </head>
- <body>
- <input type="text" id="skjerm">
- <br>
- <button id="b1">1</button>
- <button id="b2">2</button>
- <button id="b3">3</button>
- <button id="pluss">+</button>
- <button id="lik">=</button>
- <script>
- var skjerm = document.getElementById("skjerm");
- var b1 = document.getElementById("b1");
- var b2 = document.getElementById("b2");
- var b3 = document.getElementById("b3");
- var pluss = document.getElementById("pluss");
- var lik = document.getElementById("lik");
- function regnUt() {
- var regnestykke = skjerm.value;
- var svar = eval(regnestykke); // OBS! Skummelt!!!
- skjerm.value = svar;
- }
- function skrivTegn() {
- skjerm.value += this.innerHTML;
- }
- b1.onclick = skrivTegn;
- b2.onclick = skrivTegn;
- b3.onclick = skrivTegn;
- pluss.onclick = skrivTegn;
- lik.onclick = regnUt;
- </script>
- </body>
- </html>
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