js遍历对象，获取对象数字属性的最大值

傷城~ 2023-01-15 08:10 160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);
                    })
                }
            },
    }