Introducing Window performance API
Performance API provides helpful numbers to measure performance of a webpage. In this demo, “We will learn about performance API”. This performance object can be accessible using window.performance object.The following screenshot shows the object model of window.performance object. In the previous screenshot you can see 3 performance propertied memory,navigation and timing. The memory contains information […]
Java 8 Nashorn
Nashorn is the JavaScript engine provided with the Java 8. It allows developers to embed JavaScript code inside their Java applications. Working with Nashorn command-line The command for running the JavaScript from the command line is jjs.To use jjs we have to add the path to jjs.In Windows, we have to add $JAVA_HOME/bin path to environment […]
Interview Question 1
Q. Find Factorial of a number?//0 =1 , 1 =1 , 2 =2 , 3 =6 function fact(n){ return n === 0 ? 1 : n *fact(n-1) ;} Q. Find nth Fibonacci number? //0,1,1,2,3,5,8,13,21 function fib(n){ return n < 1 ? 0 : n<=2 ? 1 : fib(n-1)+ fib(n-2);} […]
Introducing Window performance API
Performance API provides helpful numbers to measure performance of a webpage. In this demo, “We will learn about performance API”. This performance object can be accessible using window.performance object.The following screenshot shows the object model of window.performance object. In the previous screenshot you can see 3 performance propertied memory,navigation and timing. The memory contains information […]
ReactJS ShouldComponentUpdate Life Cycle method
ReactJS component has 7 life cycle methods and has the callback for each phase of React component starting from loading to mounting to un-mounting. In this demo, “we will learn about shouldComponentUpdate lifecycle methods”. The following code chows the use of all 7 lifecycle methods of React component. import React from 'react'; class WeatherComponent extends […]