Which of the following is the correct syntax to refer an external JavaScript?
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.
How do you call a function in an external JavaScript file?
Calling a function using external JavaScript file
Once the JavaScript file is created, we need to create a simple HTML document. To include our JavaScript file in the HTML document, we have to use the script tag <script type = “text/javascript” src = “function.
Which one of the following is correct way for calling the JavaScript code?
16) Which one of the following is the correct way for calling the JavaScript code? Explanation: The JavaScript code can be called simply by making the function call to the element on which the JavaScript code execution has to be run.
What is external JavaScript?
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. It is recommended to embed all JavaScript files into a single file.
What does script mean in HTML?
<script>: The Script element. The <script> HTML element is used to embed executable code or data; this is typically used to embed or refer to JavaScript code. The <script> element can also be used with other languages, such as WebGL’s GLSL shader programming language and JSON.
Which type of JavaScript language is?
JavaScript (/ˈdʒɑːvəˌskrɪpt/), often abbreviated as JS, is a programming language that conforms to the ECMAScript specification. JavaScript is high-level, often just-in-time compiled, and multi-paradigm. It has curly-bracket syntax, dynamic typing, prototype-based object-orientation, and first-class functions.
How do you write an external script?
Create external JavaScript file with the extension . js. After creating, add it to the HTML file in the script tag. The src attribute is used to include that external JavaScript file.
What is the main use of JavaScript?
JavaScript is commonly used for creating web pages. It allows us to add dynamic behavior to the webpage and add special effects to the webpage. On websites, it is mainly used for validation purposes. JavaScript helps us to execute complex actions and also enables the interaction of websites with visitors.
Why is my external JavaScript not working?
The most possible that your html file is not reading your js file culd be that you have not included the script tag in your head tag with the name of your JS file.
Which one of the following is the correct way of calling a function?
Function blocks begin with the keyword def followed by the function name and parentheses ( ( ) ). Any input parameters or arguments should be placed within these parentheses. You can also define parameters inside these parentheses.
Which of the following is correct about callbacks?
Q 23 – Which of the following is correct about callbacks? A – A callback is a plain JavaScript function passed to some method as an argument or option. B – Some callbacks are just events, called to give the user a chance to react when a certain state is triggered.
What is mean by this keyword in JavaScript?
The JavaScript this keyword refers to the object it belongs to. … Alone, this refers to the global object. In a function, this refers to the global object. In a function, in strict mode, this is undefined . In an event, this refers to the element that received the event.