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About Me

Hello, I am Amritanjali and I welcome you to my blog UI Source where I write about UI related technologies like Angular, TypeScript, JavaScript, HTML, CSS.

I love to create my own thoughts about anything which comes to my notice and I think we should always have our own thinking on everything rather than just following what others think.

That’s why I have started writing this blog to keep all my notes and thoughts on UI related technologies in one place and make them available to others.

Thanks for visiting UI Source and I hope you enjoyed the posts. Any kind of feedback is always welcomed and appreciated. You can submit any query or suggestion in the Contact Us box.

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HTML Basic

HTML (Hypertext Markup Language) Basic What is HTML ? HTML invented by Tim Berners-Lee in 1990. HTML stands for hypertext markup language. Web browsers receive HTML documents from a web server or from local storage and render the documents into multimedia web pages .We can create web page with different elements like audio, video, image, tables, link, list & text etc, with CSS & JavaScript. version of HTML There are 6 version of HTML HTML Version Year HTML 1991 HTML 2.0 1995 HTML 3.2 1997 HTML 4.01 1999 XHTML 2000 HTML 5 2014 (Latest version) Latest version of HTML Latest version of html is HTML 5.0 , in latest version of html provided new tags for multimedia support. Now we are creating web page  index.html  How we can create Web page <!DOCTYPE html> < html > < head > < title > This is my First Web Page </ title > </ head > < body > < h1 > My First heading ...
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this keyword in javascript

Welcome file this keyword is used to point at the current object in the code. For instance: If the code is presently at an object created by the help of the ‘new’ keyword, then ‘this’ keyword will point to the object being created. It has different values depending on where it is used: In a method, this refers to the owner object . Alone, this refers to the global object . In strict mode this refer to the global object . In a function, this refers to the global object . In a function, in strict mode, this is undefined . In an object method , this refers to the current object. In the example, this refers to the employee object. this Alone when this keyword is used alone, not written inside a function or object then it will refer to global object. & In browser window global object will be [object window] In a browser window the Global object is [object Window] : var x = this; this in a Function (Default) ...
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JavaScript type hoisting with variable function Expression

JavaScript type hoisting with variable function Expression Hoisting is JavaScript default behavior to moving declaration on the top. Variable can be used before its declaration. To understand this, first we need to understand of hoist meaning, hoist means “raise(something) by means of ropes & pulleys”. now we can relate hoisting with JavaScript. JavaScript interpreter moves all declaration on the top at runtime. It is best practice to declare all variable at the top of their respective scopes. , JavaScript is loosely syntax language so it will not throw any error at runtime if the variable used before its declaration. But JavaScript does not allow variable used before its declaration in “use strict” mode. Example 1 In this example, we can see in a normal scenario, when y has declared & then used. in this case, it will give output 10 as excepted. <p id= "demo" ></p> <script> var y; //Declare y y = 10 ; ...
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