如何使用html char解析javascript中的字符串

Question

For example: I have this string var s = 'Some text .... ☕' . How decode in JavaScript to var s = 'Some text .... \☕' ?

Answer 1

Not sure what you have tried so far and not even that sure what exactly you want in your case, but…

var s='Some text .... ☕';
s=s.replace(/&#(\d*);/g,function(full,number){
  return '\\u'+Number(number).toString(16);
});

returns "Some text .... \☕".

var s='Some text .... ☕';
s=s.replace(/&#(\d*);/g,function(full,number){
  return String.fromCharCode(Number(number));
});

returns "Some text .... ☕".

Instead of fromCharCode fromCodePoint is also possible.