1.1.9 Syntax Error

Another error is a syntax error. This is when your code violates the standards of the language. For example, if we utilize a restricted keyword incorrectly and console log the variable "class" out, we will see the error…SyntaxError: Unexpected token class. This is because “class” is a restricted keyword in JavaScript.

Note: Due to how StackBlitz works, the error will show a different error. When opened and viewed through the browser, it should show as followed in the image below.
Image showing console stating, 'Uncaught syntax error, Unexpected token class'

Image showing console stating, 'Uncaught syntax error, Unexpected token class'

Here is a list of reserved keywords in JavaScript…

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Keywords

Another syntax error is SyntaxError:Unexpected identifier. This usually happens when we have characters in our code that is used for coding purposes but is being misinterpreted by the code. For example, if we have the following string variable…

Note: Due to how StackBlitz works, the error will show a different error. When opened and viewed through the browser, it should show as followed in the image below.
Image showing the console stating, 'Uncaught syntax error, unexpected identifier'

Image showing the console stating, 'Uncaught syntax error, unexpected identifier'

As you can see, we have a single quote that is in the middle of the text being used as an apostrophe. JavaScript sees this as a way to denote the beginning and end of the content. It throws the syntax error because there is content other than the semi-colon after it. This does not mean we cannot use apostrophe, we just have to escape it by using the backslash (\)…

This tells JavaScript to treat the single quote as just text, not the end of the variable content.