README
readyState
监听文档加载状态变更
npm i -S @qmfe/readystate
import * as readyState from '@qmfe/readystate';
readystate.loading(() => {
console.log('loading');
});
readystate.complete(() => {
console.log('complete');
});
readystate.interactive(() => {
console.log('interactive');
});