[removed] How can I simplify an if-statement with multiple OR conditions?

Question

Sorry if I\'ve made mistakes writing this post. I\'m new here and I don\'t know how this works, hope I learn quick. I am also new at JavaScript.

So the question is:

Answer 1

The "normal" way works the way you probably expect.

However, that if statement is redundant, anyway. You can just skip it:

if (codePrompt === codeSwitch) {
    alert("Switching background...");
    console.log("Used '" + codeSwitch + "' command.");
} else if (codePrompt === codeBlur) {
    alert("Blurring elements...");
    console.log("Used '" + codeBlur + "' command.");
} else if (codePrompt === codeSwitchBG) {
    alert("Switching background...");
    console.log("Used '" + codeSwitchBG + "' command.");
} else if (codePrompt === codeShowInfo) {
    alert("Showing info...");
    console.log("Used '" + codeShowInfo + "' command.");
} else {
    alert("Wrong command, try again.");
    console.log("Wrong command, try again.");
}

This is a good use case for a switch, and I would refactor it this way:

var alertMessage = "",
    consoleMessage = "Used '" + codePrompt + "' command.";
switch (codePrompt) {
    case codeSwitch:
        alertMessage = "Switching background...";
        break;
    case codeBlur:
        alertMessage = "Blurring elements...";
        break;
    case codeSwitchBG:
        alertMessage = "Switching background...";
        break;
    case codeShowInfo:
        alertMessage = "Showing info...";
        break;
    default:
        alertMessage = consoleMessage = "Wrong command, try again.";
        break;
}
alert(alertMessage);
console.log(consoleMessage);