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- ReferenceError: "x" is not defined
- Wrong scope
- Valid cases
- Update older browsers
- SyntaxError: a declaration in the head of a for-of loop can't have an initializer
- Valid for-of loop
- SyntaxError: arguments is not valid in fields
- TypeError: 'x' is not iterable
- Iterating over Object properties
- Iterating over a generator
- Iterating over a custom iterable
- TypeError: can't assign to property "x" on "y": not an object
- Common JavaScript Errors: ReferenceError, SyntaxError, and TypeError Quiz 5 questions
Well done!
You have completed (UPI) Chapter 11: Managing Errors, Debugging, and Handling Events in JavaScript!
Instruction
Iterating over a generator
Generator functions are functions you call to produce an iterable object.
function* generate(a, b) {
yield a;
yield b;
}
for (const x of generate) {
console.log(x);
} // TypeError: generate is not iterable
When they are not called, the Function object corresponding to the generator is callable, but not iterable. Calling a generator produces an iterable object which will iterate over the v...