Method $$startCheckHash

packages/miniprogram-render/src/bom/location.js:368–375

* 开始检查 hash 变化

()

     * 开始检查 hash 变化
     */
    $$startCheckHash() {
        if (!this.$_allowCheck) return

        this.$_lastHash = this.$_hash
        this.$_lastPathname = this.$_pathname
        this.$_lastSearch = this.$_search
        this.$_lastHref = this.href
    }

    /**
     * 检查 hash 变化