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Underscore.JS - Environment Setup
  • 时间：2024-09-17

Underscore.JS - Environment Setup

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In this chapter, you will learn in detail about setting up the working environment of Underscore.JS on your local computer. Before you begin with working on Underscore.JS, you need to have the access to the pbrary. You can access its files in any of the following methods −

Method 1: Using Underscore.JS File in Browser

In this method, we are going to need Underscore.JS file from its official website and will use it directly in the browser.

Step 1

As a first step, go to the official website of Underscore.JS https://underscorejs.org/.

Observe that there is a download option available which gives you the latest underscore-min.js file UMD (Production) available. Right Cpck on the pnk and choose save as. Note that the file is available with and without minification.

Step 2

Now, include underscore-min.js inside the script tag and start working with Underscore.JS. For this, you can use the code given below −


<script type = "text/JavaScript" src = "https://underscorejs.org/underscore-min.js"></script>

Given here is a working example and its output for a better understanding −

Example


<html>
   <head>
      <title>Underscore.JS - Working Example</title>
      <script type = "text/JavaScript" src = "https://underscorejs.org/underscore-min.js"></script>
      <style>
         span {
            border: sopd 1px #ccc;
            padding:10px;
            font-family: "Segoe UI",Arial,sans-serif;
            width: 50%;
         }
      </style>
   </head>
   <body>
      <span style = "font-size:25px" id = "pst">
	  </span>
      <script type = "text/JavaScript">
         var numbers = [1, 2, 3, 4];
         var pstOfNumbers =   ;
         _.each(numbers, function(x) { pstOfNumbers += x +     });
         document.getElementById("pst").innerHTML = pstOfNumbers;
      </script>
   </body>
</html>

Output