identifier expected in javascript

In JavaScript, an expected identifier error occurs when a variable, function, or keyword is not correctly named. To fix this error, you must check your code for spelling mistakes, missing punctuation, or other syntax errors.

Here is an example where an expected identifier error can occur:

index.tsx
function myFunction() {
  var myVar = 5;
  var 2ndVar = 10; // expected identifier error here
}
96 chars
5 lines

In the above code, 2ndVar is an invalid name for a variable because it starts with a number. To fix the error, you can change it to a valid name such as secondVar.

Here is another example where the error can occur:

index.tsx
var myObject = {
  someProperty: 5,
  anotherProperty: 10
  function myMethod() { // expected identifier error here
    // do something
  }
};
143 chars
8 lines

In the above code, there is a missing comma after anotherProperty, which causes an error when the parser expects an identifier (in this case myMethod). To fix the error, you can simply add the missing comma:

index.tsx
var myObject = {
  someProperty: 5,
  anotherProperty: 10,
  function myMethod() {
    // do something
  }
};
110 chars
8 lines

By using proper type checking and ensuring that all keywords, variables, and functions are properly named and declared, you can avoid expected identifier errors and write better JavaScript code.