将JavaScript字符串打印为字符串文字

Question

我正在尝试在JavaScript中将字符串作为字符串文字打印，以便字符串的打印方式与编写完全一致：

printStringLiteral("\n\nHi!");//this prints "Hi!" instead of "\n\nHi!".
                              //What will I need to do in order to print
                              //the string as a string literal instead?

function printStringLiteral(toPrint){
    console.log("\"" toPrint + "\"");
}

Answer 1

您可以使用JSON：

JSON.stringify(toPrint);

Answer 2

printStringLiteral("\\\n\\\nHi!");

function printStringLiteral(toPrint){
    console.log("\\\"" + toPrint + "\\\"");
}