Generators can be created in multiple ways
the most common way is by adding * after function
function g() {}
assert.equal(String(g()), '[object Generator]');
as a function expression, by adding a * after function
let g = function() {};
assert.equal(String(g()), '[object Generator]');
inside an object by prefixing the function name with *
let obj = {
g() {}
};
assert.equal(String(obj.g()), '[object Generator]');
computed generator names, are just prefixed with a *
const generatorName = 'g';
let obj = {
[generatorName]() {}
};
assert.equal(String(obj.g()), '[object Generator]');
inside a class the same way
const generatorName = 'g';
class Klazz {
[generatorName]() {}
}
assert.equal(String(new Klazz().g()), '[object Generator]');
Links
mdn
docs
Describes the `function*` declaration.