JavaScript is one of the most widely used programming languages for web development. It’s the most popular and highly paid language of 2020, and the demand for it is only likely to increase in the coming years. If you want to know more about the most popular coding languages including JavaScript, follow the link: https://litslink.com/blog/top10-important-coding-languages-2020 […]
In JavaScript, you can check whether a variable is undefined or null or blank or has a value defined in it. In JavaScript, ‘undefined’ means a variable has been declared but has not been assigned a value yet, such as: var a; console.log(a); //shows undefined console.log(typeof a); //shows undefined ‘null’ is an assignment value. This […]
To detect browser in JavaScript, window.navigator object contains information about the user’s browser i.e. Firefox, Internet Explorer, Opera, etc. JavaScript has a standard object called navigator which contains data about user’s browser. It has a lot of properties. JavaScript window.navigator object can be written without window prefix. For example, navigator.appName navigator.appCodeName navigator.platform Browser detection is […]