vue 所有圖片加載完顯示頁面

loadImages (urlArr) { //參數 圖片地址數組
            if (urlArr.length <= 0) return 
            let i = 0,
            timer = null,
            len = urlArr.length,
            load = (url) => {
                if (i < len) {
                    const image = new Image()
                    image.src  = url
                    timer = setInterval(() => {
                        if (image.complete) {
                            console.log('complete')
                            clearInterval(timer)
                            load(urlArr[i++])
                        }
                    }, 80)
                } else {
                    this.showLoading = false // 所有圖片加載完后的操作
                }
            }
            load(urlArr[i])
        }