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script.js
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script.js
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var resultDisplayed = false;
function getResult() {
try {
var result = document.getElementById("output").innerHTML;
var resultCalculated = eval(result);
console.log(resultCalculated);
document.getElementById("output").innerHTML = resultCalculated;
resultDisplayed = true;
} catch (e) {
console.log("Invalid expression");
document.getElementById("output").innerHTML = "Invalid expression";
resultDisplayed = true;
}
}
function getButtonPress() {
var input = this.value;
if (input === "=") {
getResult();
} else if (resultDisplayed && input < 10) {
document.getElementById("output").innerHTML = input;
resultDisplayed = false;
} else {
document.getElementById("output").innerHTML += input;
resultDisplayed = false;
}
}
window.onload = function () {
[].slice.call(document.getElementsByClassName("button")).forEach(function (e) {
e.addEventListener('click', getButtonPress);
});
};