How does yield work as a argument in javascript

Question

I came across this code while learning about yield and wondering what yield would do as a argument to a function . Looks like a glorified return in this place

export function * throttle(func, time) {
 let timerID = null;
 function throttled(arg) {
 clearTimeout(timerID);
 timerID = setTimeout(func.bind(window, arg), time); // what does this do????
 }
 while(true) throttled(yield);
}
export class GeneratorThrottle {
 constuctor() {};
 start = () => {
 thr = throttle(console.log, 3000);
 thr.next('');
 };
 toString = () => {
 console.log(throttle);
 console.log('start =', this.start);
 };
};

• Toto: Does this answer your question? What's the yield keyword in JavaScript?

Answer 1

With next method, You can pass data as argument into generator function.

function* logGenerator() {
 console.log(0);
 console.log(1, yield);
 console.log(2, yield);
 console.log(3, yield);
}
var gen = logGenerator();
// the first call of next executes from the start of the function
// until the first yield statement
gen.next(); // 0
gen.next('pretzel'); // 1 pretzel
gen.next('california'); // 2 california
gen.next('mayonnaise'); // 3 mayonnaise

And func.bind(window, arg) are just fancy way to call it with argument,

where bind method return a function... And you can access this as window in that function...

Example:

function func(args) {
 console.log(this, args)
}
func.bind("this", "args")();