The essence of the web, whether it is a website or an application, has long been that data is prepared and executed on servers and then displayed to users in web browsers. With the advent of HTML5, it became possible to run complete and functional applications on the client side. Before this, cookies were used for such purposes. One of the most important features of any application, to work properly, is the ability to store data so it can be used whenever needed. For storing small amounts of data on the client side, cookies were used for a long time....

bbosko

Created: 02/28/2019Comments:1Views: 10

The latest API for monitoring Web Performance. It is slightly more complicated to set up, but the advantage is that it uses the same syntax as other Observer APIs (Resize Observer, Intersection Observer, and Mutation Observer). The Performance Observer API allows you to set up something similar to an event, which monitors specific configured web performance metrics and triggers a callback function when those results become available in the browser's performance timeline. Within the callback function, you can access this data. The Performance Observer API is used to monitor, test, or measure performance metrics to improve your application....

isladjan

Created: 02/28/2019Comments:0Views: 3

There are many APIs and techniques for measuring the performance of a web page (all the APIs listed below are interconnected, share similar syntax, and inherit properties from each other – most importantly, they are used in the same way): Performance API – Used to precisely measure the time required for specific performance evaluations. It contains other APIs, each of which measures a specific aspect of the web page's performance. All these APIs are used in the same way (explained in detail under the heading below: Performance APIs). Most...

isladjan

Created: 02/28/2019Comments:0Views: 1