如何使用javascript呈现unicode转义序列？

Question

Below code,

document.writeln("Caracteres escapados {\u55e8\uff0c\u4f60\u597d\u5417}: "
                                                    + "\u55e8\uff0c\u4f60\u597d\u5417");

expected output is \嗨\，\你\好\吗: 嗨，你好吗

Current output is: Caracteres escapados {嗨，你好吗}: 嗨，你好吗

What modification is required in the above code?

Answer 1

只需不翻译就跳过要显示的代码的反斜杠即可：

 document.writeln("Carácteres escapados \\\嗨\\\，\\\你\\\好\\\吗: \嗨\，\你\好\吗"); 

Answer 2

You need to escape your backslashes and remove the braces.

document.writeln("Caracteres escapados \\u55e8\\uff0c\\u4f60\\u597d\\u5417 "
                                                    + "\u55e8\uff0c\u4f60\u597d\u5417");