Finding the smallest value in Array is easy to use for loop statements. You need to first traversal the array element and store it to a new array (smallest_value_array). Compare the existing array value with a new one before you store it
Find the smallest number in array JavaScript for loop Example
HTML example code program:-
In the example we have given an array with values, now we created a new array “smallest” with initializing smallest as the first element. Go through each element of the array and compare it. If it’s smaller then stored one then replace it.
<!DOCTYPE html>
<html>
<body>
<script>
var arr = [4,1,9,5,0];
var smallest = arr[0];
for(var i=1; i<arr.length; i++){
if(arr[i] < smallest){
smallest = arr[i];
}
}
console.log(smallest);
</script>
</body>
</html>Output:
Another Simple way without for loop
Just sort the array in increasing order. The first element in sorted array would be two smallest elements.
<!DOCTYPE html>
<html>
<body>
<script>
var arr = [5, 1, 9, 5, 7];
var smallest = arr.sort((a, b) => a - b);
alert(smallest[0]);
</script>
</body>
</html>Output: 1
Note: By default, the sort method sorts elements alphabetically. To sort numerically just add a new method that handles numeric sorts
Do comment if you have any question or suggestions on this JS Array topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version