How to prevent knockout.js function from running on page load?

by edmond_brakus , in category: Javascript , 3 months ago

How to prevent knockout.js function from running on page load?

Facebook Twitter LinkedIn Telegram Whatsapp

1 answer

Member

by lew , 3 months ago

@edmond_brakus 

To prevent a knockout.js function from running on page load, you can use the "if" binding in your HTML markup to conditionally apply the function based on a flag or observable variable.


Here's an example:

  1. Add a flag property to your view model:
1
2
3
4
var viewModel = {
  shouldRunFunction: ko.observable(false)
};
ko.applyBindings(viewModel);


  1. Use the "if" binding in your HTML markup to conditionally apply the function:
1
2
3
<div data-bind="if: shouldRunFunction">
  <!-- Your function content here -->
</div>


  1. Set the flag to true when you want the function to run:
1
viewModel.shouldRunFunction(true);


By following these steps, you can prevent the knockout.js function from running on page load and only execute it when needed by updating the flag property.