Function nextTick

front/wxcomponents/vant/common/utils.js:14–18

(fn)

    return Math.min(Math.max(num, min), max);
}
export function nextTick(fn) {
    setTimeout(() => {
        fn();
    }, 1000 / 30);
}
let systemInfo = null;
export function getSystemInfoSync() {
    if (systemInfo == null) {