In the beginning, PHP was designed for servers to assemble HTML files and JavaScript ran inside the browser on the client.Both offer dynamically typed variables.Both are scripting languages that were originally interpreted at runtime but are now often transformed by a JIT compiler.Many Python libraries are focused on data processing and analysis, while many JavaScript libraries are designed to manipulate HTML in the browser.
#JAVASCRIPT OR JAVA CODE#
JavaScript code is often driven by events such as mouse clicks or keystrokes.Python offers flexible parameter blocks for methods, while JavaScript insists that all parameters must be specified.JavaScript uses curly brackets to designate blocks of code.JavaScript is found now on servers and other locations. Python is popular as a data processing language in the social sciences. Both languages are now supporting larger communities.Python was made to run from the command line to support servers (and desktops). JavaScript was originally designed to support HTML pages in the browser.C# has operator and conversion overloading.JavaScript hides much of this with its call-and-response function structure. C# gives the programming explicit control over threading.NET component that adds native data querying capabilities, but JavaScript has separate libraries that can cover this functionality, one being Underscore.js. C# is strongly typed, while JavaScript isn’t.C# is statically typed, while JavaScript is dynamically typed.
JavaScript was once only interpreted but is now often run through a JIT compiler.
C# is compiled to a bytecode that is an intermediate form to be run by a JIT compiler. Java gives the programming explicit control over threading. Java 8 now includes a mechanism for embedding JavaScript so Java can leverage several of JavaScript's benefits. Cross-compilers convert many languages to run on Java’s JVM or JavaScript engines. Both Java and JavaScript support many other languages. JavaScript once ran only in browsers but is now increasingly used on the server side too. Java once ran in browsers and servers but is largely limited to servers today. JavaScript doesn’t offer it directly, so programmers have synthesized it. Java is designed to support large applications with a robust namespace. Java is strongly typed, while JavaScript isn’t. Java is statically typed, while JavaScript is dynamically typed. JavaScript was only interpreted at one time but is now often run through a JIT compiler. Java is compiled to a bytecode that is an intermediate form to be run by a JIT compiler. 
C offers explicit control of threads, while JavaScript encourages users to juggle multiple jobs by splitting tasks into asynchronous functions that are called when data is ready. JavaScript was first embedded only in web pages, but it is finding a new role in server applications developed through Node.js. C is commonly used for embedded computers and applications that require high performance such as operating systems. C is designed to work directly with the computer’s memory through pointers. C code must be recompiled when moved to a different processor. C requires programmers to allocate and reclaim blocks of memory. JavaScript is interpreted and sometimes compiled at runtime with a just-in-time (JIT) compiler. Here's a short, bulleted list for comparing JavaScript with some of the other major programming langauges. Even server applications are increasingly written in JavaScript as programmers turn to Node.js for increased speed and the freedom to run the same code on the server and the client. Web applications are the dominant way that people interact with the computing universe, and JavaScript is the foundation. It's now more than 20 years later and everything has changed. Few noticed the value of its forward-thinking features such as lambdas and functions as first-class objects until it brought them into the mainstream. Many programmers dismissed it as a toy, a vehicle for double-checking the data in the form or adding annoying popup windows. 
When JavaScript first appeared, it was just an extra Turing-complete option that Netscape added to its browser.
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