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JavaScript Jobs: Top 100 Interview Questions 1) Explain what is Javascript? Javascript is an object-oriented computer programming language commonly used to create interactive effects within web browsers.It is first used by the Netscape browser, that provides access to the HTML document object model (DOM), provides access to the browser object model (BOM). Javascript syntax looks a lot like java, c or c++ syntax. Below is the list of data types supported by Javascript:- Undefined Null Boolean String Symbol Number Object 2) What close() does in Javascript? In Javascript close() method is used to close the current window. You must write window.close() to ensure that this command is associated with a window object and not some other JavaScript object. 3) What is the difference between let and var? Both var and let are used for variable/ method declaration in javascript but the main difference between let and var is that var is function scoped whereas let is block scoped. 4...

D3.js Jobs: Top 100 Interview Questions  1) Define D3.js? D3.js is defined as a JavaScript-based library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, combining powerful visualization components and a data-driven approach to DOM manipulation. 2) What does D3 stand for? D3 stands for  Data-Driven Documents 3) Who developed D3.js? Mike Bostock  wrote D3.js based on his work during his Ph.D. studies at the Stanford Visualization Group. Mike worked at The New York Times for a while and is now independently working on D3.js. 4) Why use D3.js? You can use D3 js because D3.js lets you to build the data visualization framework D3.js focuses on binding data to DOM elements. D3.js is written in JavaScript and uses a functional style which means you can reuse code and add specific f...

1) What is Python? What are the benefits of using Python? Python is a programming language with objects, modules, threads, exceptions and automatic memory management. The benefits of pythons are that it is simple and easy, portable, extensible, build-in data structure and it is an open source. 2) What is PEP 8? PEP 8 is a coding convention, a set of recommendation, about how to write your Python code more readable. 3) What is pickling and unpickling? Pickle module accepts any Python object and converts it into a string representation and dumps it into a file by using dump function, this process is called pickling. While the process of retrieving original Python objects from the stored string representation is called unpickling. 4) How Python is interpreted? Python language is an interpreted language. Python program runs directly from the source code. It converts the source code that is written by the programmer into an intermediate...