1.定义一个数组,数组元素是[12,125,34,45,506,44,66,77,88,99],输出数组中的最大值
var arr = new Array (12,125,34,45,506,44,66,77,88,99);
let max = arr[0];
arr.forEach(function(value,index){
if(value > max){
max = value
}
});
console.log('Max = ',max);
2.定义一个数组,数组元素是[12,125,34,45,506,44,66,77,88,99],输出所有数组元素之和
/* 定义一个数组,数组元素是[12,125,34,45,506,44,66,77,88,99] ,输出所有数组元素之和 */
var arr = new Array (12,125,34,45,506,44,66,77,88,99);
var sum = 0;
/* for(let i = 0;i< arr.length;i++){
sum+=arr[i]
}
console.log(sum) */
for(let i in arr){
sum +=arr[i]
}
console.log(sum)