escape sequence

Code	Output
\'	Single quotation marks
\"	Double quotes
\\	The backslash
\n	Line break
\r	enter
\t	tab( tabs )
\b	Back space
\f	Page identifier

  let a = "hello world";
// let b = " I am a ' superman '";
      
//  Quotation mark rule : Inner double outer single , Single outside and double inside , Or escape character 
   let b = " I am a  \" superman \" ";
console.log(b); // I am a " superman "