escape character (跳脫字元) backslash(反斜線)

because string need to be written within quote.

"Sally is a "Angry bird" from a desert."

JavaScript will misunderstand this string that The string will be chopped to "Sally is a". 

To keep all the words, we need put some backslash in it.:

 

    let text = "Sally is a \"Angry bird\" from a desert."

more common example:

    let htmlTemplate = "
Sally is a \"Angry bird\" from a desert.
"