The method of finding the maximum and minimum values ​​of an array is applicable to any array_javascript skills

Today I will share with you a method, this method is for arrays. In our daily work, we may have a headache when encountering array problems. In particular, let's find the maximum and minimum values ​​from oddly shaped arrays. Although a method for finding the maximum and minimum values ​​of an array has been introduced before, that method is only used for arrays that contain numbers.

Next, the method I introduce is applicable to any array. This method will pick out the values ​​​​in the array and compare them.
Html code:

Copy code The code is as follows:

['1200px', 300, 'abc', 4, 90, [], '12.56 yuan', function(){}, 'xyz'-30, true, Number( 'abc')]

The maximum and minimum values ​​are:

html preview:

JavaScript code:

Copy code The code is as follows:

//var arr = [ '1200px', 300, 'abc', 4, 90, [], '12.56 yuan', function( ){}, 'xyz'-30, true, Number('abc') ];
/*
Find the maximum and minimum values: 1200, 4
*/
window.onload = function(){
var arr = ['1200px', 300, 'abc', 4, 90, [], '12.56 yuan', function(){}, 'xyz'-30, true, Number( 'abc')];

/*
getMinMax method to get the maximum and minimum values
arr array Get the array of the maximum and minimum values
num number can pass big or small
return number If the parameter is big, it will return the maximum value, and if small, it will return the minimum value
*/
function getMinMax (arr,num) {
var big = parseInt(arr[0]),
small = parseInt( arr[0]),
i = 0,
al = arr.length;

for( i = 0; i < al; i ) {
if(parseInt(arr [i]) > big) {
big = parseInt(arr[i])

} else if(parseInt(arr[i]) < small) {
small = parseInt( arr[i]);
}
}
if (num=="big") return big;
else if (num=="small") return small;
}
//Click to display, the maximum value 12 or the minimum value 4 will appear
document.getElementById("inpu").onclick = function () {
this.parentNode.innerHTML = "2. Maximum and minimum values The values ​​are: " getMinMax (arr, "big") ", " getMinMax (arr, "small");
}
}

Preview effect:

The above is the maximum and minimum array method I shared. Hope it helps everyone. If you have any suggestions, we can communicate at any time. ~