Balance

Load balancing executor, which evenly distributes the execution of event listeners, ensuring that each listener is executed approximately the same number of times.

import { balance } from 'fastevent/executors';

const emitter = new FastEvent();

emitter.on('test', () => 'handler1');
emitter.on('test', () => 'handler2');
emitter.on('test', () => 'handler3');

// Each listener will be called roughly the same number of times
for (let i = 0; i < 9; i++) {
    emitter.emit('test',i,{
        executor: balance()  [!code ++]
    });
}

• In the example above, executor: balance() specifies the use of a load balancing executor, which evenly distributes the execution among event listeners. Therefore, in the code above, test has three listeners, but only one listener will be executed for each emit. The balance executor checks the execution count of each listener function and tries to distribute executions as evenly as possible.