JavaScript: Pass a JavaScript function as parameter
JavaScript Function: Exercise-28 with Solution
Write a JavaScript program to pass a 'JavaScript function' as parameter.
Sample Solution: -
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript program to pass a JavaScript function as parameter</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function addStudent(id, refreshCallback)
{
refreshCallback();
}
function refreshStudentList() {
console.log('Hello');
}
addStudent(1, refreshStudentList);
Output:
Hello
Flowchart:

Live Demo:
See the Pen JavaScript - Pass a JavaScript function as parameter-function-ex- 28 by w3resource (@w3resource) on CodePen.
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JavaScript: Tips of the Day
Shorten an array using its length property
A great way of shortening an array is by redefining its length property.
let array = [0, 1, 2, 3, 4, 5, 6, 6, 8, 9] array.length = 4 // Result: [0, 1, 2, 3]
Important to know though is that this is a destructive way of changing the array. This means you lose all the other values that used to be in the array.
Ref: https://bit.ly/2LBj213
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