调整工具集内容，创建小功能集Helper新文件

Tevin

2023-04-06 df6264edf6dc16aa391e349b660304389f25b02f

 common/Tools.js

@@ -1,5 +1,5 @@
/**
 * Tools
 * Tools - 工具集
 * @author Tevin
 */

@@ -41,20 +41,6 @@
        } else {
            return null;
        }
    }

    /**
     * 读取文件 base64
     * @param {File} file
     * @return {Promise<string>}
     */
    static getFileBase64(file) {
        return new Promise((resolve, reject) => {
            const reader = new FileReader();
            reader.onload = () => resolve(reader.result);
            reader.onerror = error => reject(error);
            reader.readAsDataURL(file);
        });
    }

    /**
@@ -103,7 +89,7 @@
                    img.onerror = null;
                    callback && callback(false);
                };
                img.src = 'http://tt.zhiheiot.com/static/online.png?t=' + Date.now();
                img.src = 'http://gz.zhiheiot.com/disp/download/buildArchive/online.png?t=' + Date.now();
            }
            // 网络未开启
            else {
@@ -516,6 +502,23 @@
        return /^1[3456789]\d{9}$/.test('' + phone);
    }

    /**
     * 转换周数到日期
     * @param year
     * @param week
     * @param weekDay 需要输出星期几对应的日期 (1~7)
     * @return {Date}
     */
    static transWeekIndexToDate(year, week, weekDay) {
        const yearStart = moment([year, 0, 1]);
        const dayLong = 24 * 60 * 60 * 1000;
        const firstWeekLong = (7 - yearStart.day()) * dayLong;
        const weeksLong = (week - 1) * 7 * dayLong;
        const weekDayLong = weekDay * dayLong;
        const dayTimestamp = yearStart.valueOf() + firstWeekLong + weeksLong + weekDayLong;
        return moment(dayTimestamp).format('YYYY-MM-DD');
    }

}

// h5 中，实现 rem 转换 px
@@ -531,4 +534,6 @@
        const px = (value - p1.x) * (p2.y - p1.y) / (p2.x - p1.x) + p1.y;
        console.info(Math.round(px) + 'px');
    };
}
}

global.Tools = Tools;