Technical Documentation Page Error

I am getting a You should have the same number of .nav-link and .main-section elements."error on my code, i cant seem to find the issue. Can anyone assist , here is the code

<!DOCTYPE html>
<html lang="en">
  
  <head>
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  </head>

<nav id="navbar">
  <header>JS Documentation</header>
<ul >
  <li><a class="nav-link" href="#Introduction">Introduction</a></li>
  <li><a class="nav-link" href="#What_you_should_already_know">What you should already know</a></li>
  <li><a class="nav-link" href="#Javascript_and_Java">Javascript and Java</a></li>
  <li><a class="nav-link" href="#Hello_World">Hello World</a></li>
  <li><a class="nav-link" href="#Variables">Variables</a></li>
  <li><a class="nav-link" href="#Global_Variables">Global Variables</a></li>
  <li><a class="nav-link" href="#Declaring_Variables">Declaring Variables</a></li>
  <li><a class="nav-link" href="#Variable_Scope">Variable Scope</a></li>
  </ul>
</nav>

<main id="main-doc">
  <section class="main-section" id="Introduction">
    <header>
    Introduction
    </header>
    <p>JavaScript is a cross-platform, object-oriented scripting language. It is a small and lightweight language.
      Inside a host environment (for example, a web browser), JavaScript can be connected to the objects of its
      environment to provide programmatic control over them.

      JavaScript contains a standard library of objects, such as Array, Date, and Math, and a core set of language
      elements such as operators, control structures, and statements. Core JavaScript can be extended for a variety of
      purposes by supplementing it with additional objects; for example:</p>

    <ul>
      <li>Client-side JavaScript extends the core language by supplying objects to control a browser and its Document
        Object Model (DOM). For example, client-side extensions allow an application to place elements on an HTML form
        and
        respond to user events such as mouse clicks, form input, and page navigation.</li>
      <li>Server-side JavaScript extends the core language by supplying objects relevant to running JavaScript on a
        server. For example, server-side extensions allow an application to communicate with a database, provide
        continuity of information from one invocation to another of the application, or perform file manipulations on a
        server.</li>
    </ul>
  </section>

  <section class="main-section" id="What_you_should_already_know">
    <header>
    What you should already know
    </header>
    <p>This guide assumes you have the following basic background</p>
    <ul>
      <li>A general understanding of the Internet and the World Wide Web (WWW).</li>
      <li>Good working knowledge of HyperText Markup Language (HTML).</li>
      <li>Some programming experience. If you are new to programming, try one of the tutorials linked on the main page
        about JavaScript.</li>
    </ul>
  </section>

  <section class"main-section" id="Javascript_and_Java">
    <header>
    Javascript and Java
    </header>
    <p>JavaScript and Java are similar in some ways but fundamentally different in some others. The JavaScript language
      resembles Java but does not have Java's static typing and strong type checking. JavaScript follows most Java
      expression syntax, naming conventions and basic control-flow constructs which was the reason why it was renamed
      from LiveScript to JavaScript</p>
    <p>In contrast to Java's compile-time system of classes built by declarations, JavaScript supports a runtime system
      based on a small number of data types representing numeric, Boolean, and string values. JavaScript has a
      prototype-based object model instead of the more common class-based object model. The prototype-based model
      provides dynamic inheritance; that is, what is inherited can vary for individual objects. JavaScript also supports
      functions without any special declarative requirements. Functions can be properties of objects, executing as
      loosely typed methods.</p>
    <p>JavaScript is a very free-form language compared to Java. You do not have to declare all variables, classes, and
      methods. You do not have to be concerned with whether methods are public, private, or protected, and you do not
      have to implement interfaces. Variables, parameters, and function return types are not explicitly typed.</p>
    <p>JavaScript is a very free-form language compared to Java. You do not have to declare all variables, classes, and
      methods. You do not have to be concerned with whether methods are public, private, or protected, and you do not
      have to implement interfaces. Variables, parameters, and function return types are not explicitly typed.</p>
  </section>

  <section class="main-section" id="Hello_World">
    <header>
    Hello World
    </header>
    <p>To get started with writing JavaScript, open the Scratchpad and write your first "Hello world" JavaScript code:
    </p>
    <code>function greetMe(yourName) { alert("Hello " + yourName); }</p></code>
    <code> <p> greetMe("World");</p> </code>
    <p>Select the code in the pad and hit Ctrl+R to watch it unfold in your browser!</p>
      <p>Select the code in the pad and hit Ctrl+R to watch it unfold in your browser!</p>
  </section>

  <section class="main-section" id="Variables">
    <header>
    Variables
    </header>
    <p>You use variables as symbolic names for values in your application. The names of variables, called identifiers,
      conform to certain rules.</p>
    <p>A JavaScript identifier must start with a letter, underscore (_), or dollar sign ($); subsequent characters can
      also be digits (0-9). Because JavaScript is case sensitive, letters include the characters "A" through "Z"
      (uppercase) and the characters "a" through "z" (lowercase).</p>
  </section>

  <section class="main-section" id="Global_Variables">
    <header>
    Global Variables
    </header>
    <p>Global variables are in fact properties of the global object. In web pages the global object is window, so you can set and access global variables using the window.variable syntax.
    </p>
   
  
    <p>Consequently, you can access global variables declared in one window or frame from another window or frame by specifying the window or frame name. For example, if a variable called phoneNumber is declared in a document, you can refer to this variable from an iframe as parent.phoneNumber.</p>
  </section>

  <section class="main-section" id="Declaring_Variables">
    <header>
    Declaring Variables
    </header>
    <p>You can declare a variable in three ways:
    </p>
   <p>With the keyword var. For example,</p>
    <p>With the keyword var. For example,</p>
     
    <code><p>var x = 12</p></code>
    <p>This syntax can be used to declare both local and global variables.</p>
    <p>By simply assigning it a value. For example,</p>
    <code><p>x = 12</p> </code>

    <p>This always declares a global variable. It generates a strict JavaScript warning. You shouldn't use this variant.
    </p>
    <p>With the keyword let. For example,</p>
    <code><p>let y = 3</p></code>
  </section>

  <section class="main-section" id="Variable_Scope">
    <header>
    Variable Scope
    </header>
    <p>When you declare a variable outside of any function, it is called a global variable, because it is available to
      any other code in the current document. When you declare a variable within a function, it is called a local
      variable, because it is available only within that function.
    </p>


    <p>JavaScript before ECMAScript 2015 does not have block statement scope; rather, a variable declared within a block
      is local to the function (or global scope) that the block resides within. For example the following code will log
      5, because the scope of x is the function (or global context) within which x is declared, not the block, which in
      this case is an if statement.</p>

    <code><p>if (true) { var x = 5; } console.log(x); // 5</p></code>
    <code><p>if (true) { let y = 5; } console.log(y); // ReferenceError: y is</p></code>
    <code><p>not defined</p>
  </section>
</main>
</html>
1 Like

Your missing an assignment operator on one of the main section elements.

1 Like

Thanks a lot, fixed it,

1 Like

This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.