One of the most popular Angular interview questions is, whether a service is singleton? By default, when you create a service using the below CLI command, ng g s app AppService is singleton, however it can be re-provided to create more objects of it. Say, you again re provide AppService in one of the components, … Continue reading Angular Interview : is Angular Service Singleton ?
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Video- High-level introduction of generator functions in JavaScript
This video gives very high level introduction of generator in JavaScript https://www.youtube.com/watch?v=zY1AaITBAMM
Always Use the for…of loop to iterate in JavaScript
In JavaScript to iterate over the values of an array, map, object, etc. use the for…of loop. In a specified order, it iterates over the set of values of an iterable object such that array. It would be best if you use a for…of loop for looping. You must have used the for…in loop to … Continue reading Always Use the for…of loop to iterate in JavaScript
Video- How to use JavaScript array find method
https://youtu.be/DgROCYkg-lU This video explains How to use JavaScript array find method
Video – Scoping and Hoisting in JavaScript
This video explains Scoping and Hoisting in JavaScript
Video – JSON.stringify() in JavaScript
This video explain in detail about JSON.stringify in JavaScript.
Video – slice method in JavaScript
Video – How to create constant or a read-only property in JavaScript
This video explains to create a constant or a read-only property in JavaScript. https://www.youtube.com/watch?v=d0D1C-z91lQ
Video – Step by Step using TypeScript in a Node.js Application
This video explains steps to use TypeScript in a Node.js application. You can read step by step article on the same here - here Download source code from here https://www.youtube.com/watch?v=fOkAMBVyuo0 To start with create a folder and run npm init command inside the folder. After that install these dependencies, npm install -D typescript npm install … Continue reading Video – Step by Step using TypeScript in a Node.js Application
Video- Why You need the apply() and the call() methods in JavaScript
To pass value of 'this' object in a function apply and the call methods are used. https://youtu.be/1nG3FKN3KjU The apply() and the call() methods are used to call a function indirectly. When you call a function using the apply() and the call() methods, that is called Indirect Invocation Pattern . The first parameter is always … Continue reading Video- Why You need the apply() and the call() methods in JavaScript
Dhananjay Kumar 