javascript 在没有 Math.min 的情况下在 Array 中查找最小值
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Find smallest value in Array without Math.min
提问by STEEL
How can I find the lowest number in an array without using Math.min.apply?
如何在不使用的情况下找到数组中的最小数字Math.min.apply？
var arr = [5,1,9,5,7];
回答by MrCode
If you must use a forloop:
如果必须使用for循环：
var arr = [5,1,9,5,7];
var smallest = arr[0];
for(var i=1; i<arr.length; i++){
if(arr[i] < smallest){
smallest = arr[i];
}
}
console.log(smallest);
回答by STEEL
Now when look at my own question.. it looks so silly of me.
现在看看我自己的问题..我看起来很傻。
Below would be perfect solution to find the smallest number in an array:
下面将是找到数组中最小数字的完美解决方案：
By default, the sort method sorts elements alphabetically. To sort numerically just add a new method which handles numeric sorts
By default, the sort method sorts elements alphabetically. To sort numerically just add a new method which handles numeric sorts
var arr = [5, 1, 9, 5, 7];
var smallest = arr.sort((a, b) => a - b);
alert(smallest[0]);回答by tenub
just sort the array and take the first value, easy.
只需对数组进行排序并取第一个值，很简单。
if you must use a for loop:
如果必须使用 for 循环：
var arr = [5,1,9,5,7];
for (var i=0; i<1; i++) {
arr.sort();
}
return arr[0];
回答by GKBRK
Here's a simple solution using a for loop.
这是一个使用 for 循环的简单解决方案。
var arr = [5,1,9,5,7];
var smallest = arr[0];
for (var i=0; i<arr.length; i++){
if (arr[i]<smallest){
smallest = arr[i];
}
}
return smallest;
Returns 1.
返回 1。
回答by saran
Alternate solution without using for loop (ES6). JavaScript reduce method is a good choice.
不使用 for 循环（ES6）的替代解决方案。JavaScript reduce 方法是一个不错的选择。
var arr = [5,1,9,5,7];
var smallest = arr.reduce((prev,next) => prev>next ? next : prev);
var largest = arr.reduce((prev,next) => prev<next ? next : prev);
