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Advantages and Disadvantages of JavaScript
  • Last Updated : 25 Nov, 2020

JavaScript is a programming language. Many of these are related to the way, JavaScript is often executed directly in a client’s browser commonly utilized in web development. It was originally developed by Netscape as a way to feature dynamic and interactive elements to websites. JavaScript is influenced by Java with the similar syntax of C. JavaScript conforms to the ECMAScript specifications which were developed by Sun Microsystems.

JavaScript may be a client-side scripting language, which suggests the ASCII text file is processed by the client’s browser instead of on the online server. This can load the webpage without communicating with the main server by the help of JavaScript. For example, a JavaScript function may check an internet form before it’s submitted to make sure all the specified fields are filled out. The JavaScript code can produce an error message before any information is really transmitted to the server.

Like server-side scripting languages, like PHP and ASP, JavaScript code are often inserted anywhere within the HTML of a webpage. The output of the server-side is displayed in the HTML but the JavaScript code remains visible in the source of the webpage. The file can be a separate “.js” file, which can be displayed in the browser.

JavaScript has some advantages and disadvantages. JavaScript is often executed directly on a client’s browser. JavaScript can also have the same benefits as server-side languages.

Advantages of JavaScript:

  • Regardless of where you host JavaScript, it always gets executed on client environment to save lots of a bandwidth and make execution process fast.
  • In JavaScript, XMLHttpRequest is an important object that was designed by Microsoft. The object call made by XMLHttpRequest as a asynchronous HTTP request to the server to tranfser the data to both sides without reloading the page
  • The biggest advantage to JavaScript having a ability to support all modern browsers and produce an equivalent result.
  • Global companies support community development by creating projects that are important. An example is Google (created Angular framework) or Facebook (created the React.js framework).
  • JavaScript is employed everywhere on the web .
  • JavaScript plays nicely with other languages and may be utilized in an enormous sort of applications.
  • There are many open source projects that provide a useful help at the developer’s add JavaScript.
  • There are many available courses within the field of JavaScript, because of which you’ll quickly and simply expand your knowledge of this programing language .
  • It is not difficult to start working in JavaScript. For this reason, many of us prefer to start their adventure with the IT sector from learning this language.
  • It gives the power to make rich interfaces.
  • There are some ways to use JavaScript through Node.js servers. It is possible to develop a whole JavaScript app from front to back using only JavaScript.

Disadvantages of JavaScript:

  • This may be difficult to develop large applications, although you’ll also use the TypeScript overlay.
  • This applies to larger front-end projects. The configuration is often a tedious task to the amount of tools that require to figure together to make an environment for such a project. This is often directly associated with the library’s operation.
  • The main problem or disadvantage in JavaScript is that the code is always visible to everyone anyone can view JavaScript code.
  • No matter what proportion fast JavaScript interpret, JavaScript DOM (Document Object Model) is slow and can be a never fast rendering with HTML.
  • If the error occurs in the JavaScript, it can stop to render the whole website. Browsers are extremely tolerant of JavaScript errors.
  • JavaScript is usually interpreted differently by different browsers. This makes it somewhat complex to read and write cross-browser code
  • Though some HTML editors support debugging, it’s not as efficient as other editors like C/C++ editors . Hence difficult for the developer to detect the matter .
  • This continuous conversions takes longer in conversion of number to an integer. This increases the time needed to run the script and reduces its speed.

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