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Array find() method with example in JavaScript
JavaScript find() method: Here, we are going to learn about the find() method of array in JavaScript.
Submitted by IncludeHelp, on March 02, 2019
JavaScript find() method
find() method is used to get the first element from an array which passes the given test (condition).
Syntax
array.find(function, [value]);
Parameters
A function name and an optional value to be tested with all elements.
Ref: JS Array find() function
Return value
A first element which passes the test.
Sample Input/Output
//function for positive value
function getPositive(n){
return n>=0;
}
Input:
var numbers = [-30, -10, 20, 20, 30, 0, 40];
Function call:
var item = numbers.find(getPositive);
Output:
20
JavaScript code to find first positive number from an array using Array.find() method
<html>
<head>
<title>JavaScipt Example</title>
</head>
<body>
<script>
//function for positive value
function getPositive(n){
return n>=0;
}
var numbers = [-30, -10, 20, 20, 30, 0, 40];
//find first positive number
var item = numbers.find(getPositive);
document.write("first positive number is " + item + "<br>");
</script>
</body>
</html>
Output
first positive number is 20
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