js遍历对象，获取对象数字属性的最大值-蒲公英云

js遍历对象，获取对象数字属性的最大值

傷城~ 2023-01-15 08:10 247阅读 0赞

methods: {
    getMax(rsp) {
           if (typeof rsp === 'undefined' || rsp == null) return 10;
            console.log('120' + JSON.stringify(rsp))
            let max = this.forEachObj(rsp);
            if (typeof max === 'undefined' || max == null) return 10;
            // 将数字转字符串
            if (typeof max === 'number') max = (max).toString();
            console.log('124:' + max)
            max = max.split('.')[0];
            if (max.length === 1) return 10;
            if (max.length === 2) return 100;
            let length = max.length,
            start = max.substr(0,1);
            start = parseInt(start) + 1;
            max = '' + start;
            for (let i = 0; i < length - 1; i ++)
            {
                max = max + '0';
            }
            // console.log(max)
            return max;
        },
        forEachObj(obj) { // 遍历对象获取最大值
            let max = 0,
            that = this;
            for (let key in obj) {
                if (Object.prototype.toString.call(obj[key]) === '[object Object]') {
                    let result = that.forEachObj(obj[key]);
                    if (result > max) max = result;
                } else if (Object.prototype.toString.call(obj[key]) === '[object Array]') {
                    that.forEachArr(obj[key])
                } else {
                    if ('totalTransactions' !== key && 'totalFlow' !== key) {
                        if (typeof obj[key] === 'string' && /^[1-9][0-9]*([\\.][0-9]{1,2})?$/.test(obj[key])) {
                            if (obj[key] > max) max = obj[key];
                        } else if (typeof obj[key] === 'number') {
                            if (obj[key] > max) max = obj[key];
                        }
                    }
                }
            }
            return max;
        },
        forEachArr(arr) {
            let that = this;
            if (Object.prototype.toString.call(arr) === '[object Array]') {
                arr.forEach(item => {
                    that.forEachObj(item);
                })
            }
        },
}