如何将ASCII码字符串转换为字符串？

Question

Need to convert a string of ASCII code into the corresponding string of characters. String.fromCharCode() works only if I directly type in the ASCII codes but I need to use a variable name for this.

code = codeArr.join('.'); // 104,101,108,108,111,32,119,111,114,108,100

String.fromCharCode(104,101,108,108,111,32,119,111,114,108,100); // hello world

String.fromCharCode(code); // this returns blank? No errors just blank

Answer 1

Use Spread syntax .

 let code = [104,101,108,108,111,32,119,111,114,108,100]; console.log(String.fromCharCode(...code));