特殊字符`®`的angularjs问题

Question

I have an expression in angularjs to replace special character Registered with surrounding sup tags.

replace(/®/gi, '<sup>&reg;</sup>')

But in the developer tools, it is changing the ® to a symbol (a question mark symbol)

.replace(/�/gi, '<sup>&reg;</sup>');

Not sure if the issue is with the angularjs header content-type. Please help!

Thanks.

Answer 1

Use .replace(/\®/gi, '<sup>&reg;</sup>')

Because \® = ®

For more information,

• MDN JavaScript Reference - String (Escape Notation)
• MDN JavaScript Reference - ES6 Tagged template literals and escape sequences

 var x = "\®" var y = x.replace(/\®/gi, '<sup>&reg;</sup>') console.log("x=",x); console.log("y=",y); var x1 = '®'; var y1 = x.replace(/\®/gi, '<sup>&reg;</sup>') console.log("x1=",x1); console.log("x1= Ox00%s",x1.charCodeAt(0).toString(16)); console.log("y1=",y1);