function
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console.log(calculator(10, 20, "add"))
function calculator(a, b, operation) {
switch(operation) {
case "add":
case "+":
return a + b;
case "minus":
case '-':
return a - b;
case "times":
case '*':
return a * b;
case "divided":
case '/':
return a / b;
default:
return "無效的操作";
}
}
JavaScript
INFO