What do you mean by internal and external JavaScript?

What do you mean by internal JavaScript?

Internal Javascript code is code that’s placed anywhere within the web page between the HTML tags . Many web developers choose to place their Javascript code before the tag.

What is the external JavaScript?

We can create external JavaScript file and embed it in many html page. It provides code re usability because single JavaScript file can be used in several html pages. An external JavaScript file must be saved by . js extension.

Can we include both internal and external JavaScript with same script tag?

You can use JavaScript code in two ways. You can keep the JavaScript code in a separate external file and then point to that file from your HTML document.

What are different ways to insert internal and external JavaScript code in HTML page?

In HTML documents and web pages, there are two ways to include JavaScript code. One way is to include the code internally, known as the inline method.

External JavaScript

  1. <! DOCTYPE html>
  2. <body>
  3. <form>
  4. Password:
  5. <input type = “password”>
  6. Message:
  7. <textarea rows=”2″ cols=”50″>
  8. </textarea>
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What is internal and external code?

for. So the Internal Code Template is for exactly one particular operation. The External Code Template can be applied on any operation in the model. So. External code templates can be used on more than one operation.

Why internal JavaScript is important?

You can easily have several routines in the same script, you just have to declare more functions, e.g. IMPORTANT! … An important detail regarding internal scripts: Event attributes, e.g. ONMOUSEOVER or ONCLICK, can also execute JavaScripts as internal scripts.

What is the main use of JavaScript?

JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a user.

What are the types of JavaScript?

JavaScript has six primitives types: string , number , undefined , null , boolean , and symbol . There is also a compound type or object . Interestingly, the primitive types are immutable and don’t have properties. For example, because of the String object you can retrieve the length of a string.

What are the advantages of using external JavaScript?

External JavaScript Advantages

  • It separates HTML and code.
  • It makes HTML and JavaScript easier to read and maintain.
  • Cached JavaScript files can speed up page loads.

Can the element body be replaced with body?

You can only replace the HTML’s body element with PHP if you are outputting the HTML with PHP (changing it before outputting it). PHP works server-side, so once the HTML reaches the client it cannot modify it.

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How does a for loop start?

The loop initialization where we initialize our counter to a starting value. The initialization statement is executed before the loop begins. If the condition is true, then the code given inside the loop will be executed, otherwise the control will come out of the loop. …

How do I link an external JavaScript file?

To include an external JavaScript file, we can use the script tag with the attribute src . You’ve already used the src attribute when using images. The value for the src attribute should be the path to your JavaScript file. This script tag should be included between the <head> tags in your HTML document.

What is JavaScript operator?

JavaScript includes operators same as other languages. An operator performs some operation on single or multiple operands (data value) and produces a result. For example, in 1 + 2 , the + sign is an operator and 1 is left side operand and 2 is right side operand.

What is a function in JavaScript?

A JavaScript function is a block of code designed to perform a particular task. A JavaScript function is executed when “something” invokes it (calls it).

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