This method causes a string to be displayed as bold as if it were in a <b> tag.
The syntax for bold() method is as follows −
string.bold( )
Returns the string with <bold> tag.
Try the following example.
<html> <head> <title>JavaScript String bold() Method</title> </head> <body> <script type="text/javascript"> var str = new String("Hello world"); alert(str.bold()); </script> </body> </html>
<b>Hello world</b>