Storage in programming
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Variables, constants, and arrays are used to store data in JavaScript. Variables store single values that can change during a program, constants store single fixed values, and arrays store multiple values of the same type in indexed elements. Common data types stored include numbers, strings, Booleans, objects, and more. Proper naming conventions use camelCase for variables and arrays and ALL_CAPS for constants.
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Instructional designing when aligned with taxonomies help the teacher deliver the best of content in a very effective manner. This leads to achieving learning outcomes through activities and resources and workflow chosen by the instructor. It also involves selecting a specific or an amalgamation of various teaching methodologies.
Course outline
Creating the course outline is the primary requisite for the content and the activities you plan to have in the course.
Course development
Course Development is a process which includes course design, strategy, content selection and creation. Before anything else, you need to define the aims, goals and objectives of creating a course. How to define and what all to understand before defining is mentioned in the presentation.
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Understanding conditional constructs in Javascript. As a part of programming fundamentals it is important to understand the basic conditional checks including the various operators used for the same.
Displaying message on web page in Javascript
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Understanding what is programming in Javascript? What are programming fundamentals i.e. variables, constants, arrays, conditional constructs, operators and loops.
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What is cyber crime? What are the various attacks and malware floating around the internet. How to safeguard yourself while online.
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How to make your website secure? What are the potential threats and how to make sure the website and website users are safe online.
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What are cookies? Why are cookies needed for websites? How not to misuse the data collected by cookies.
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What is GDPR? What kind of user data does a website stores and how is it used needs to be regulated to keep a check on fraudulent usage by website owners.
CSS- Cascading Style Sheet
This document discusses different ways to style and design web pages using CSS:
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- 2. Kinds of Data • User generated data • Program Data User Inputs Storage var msg="Hello World" Program Data
- 3. User Generated Data Input User Generated Data Interact User Interaction Program Content
- 4. Program Data Data available beforehand Data processed via program
- 6. Variable • Named storage location in memory • By convention follow 'Camel Case' for naming Eg: – bigApple – usbMic • Value may change during program processing • Can hold a single value
- 7. Variable • Use word-let let message = "Hello World"; alert (message); let bigApple = 20; alert(bigApple); let user='Gauri', age= 20, message='Good Day'; alert(message + " "+user +" "+ age);
- 8. Constant • Named storage location in memory • By convention follow 'All Caps' for naming. Eg: – BIGAPPLE – USBMIC • Value may never change during program processing • Can hold a single value
- 9. Constant • Use word- const const piv = 3.14; window.alert("Value of pi: "+ piv);
- 10. Data Type • Data is any form of information • Number – Integer – Decimal • String – Combination of characters, integers and symbols • Boolean – Yes/No
- 11. Data Type • Null – Null value • Undefined – Variable or Constant that is not initialized • Object – Complex data structures • Symbol – Unique Identifiers
- 12. Array • Named storage location in memory • Can hold multiple values of same data type • By convention follow 'Camel Case' for a variable array name or 'All Caps' for a constant array name. Eg: – bigApple – usbMic • Name should be plural since array is collection of values. • Value of variable array may change during program processing • Value of constant array may change during program processing but cannot be reassigned
- 13. Array 23 45 33 65 76 77 7 4 3 6 apple[0] apple[1] apple[2] apple[3] apple[4] apple[5] INTR[0] INTR[1] INTR[2] INTR[3] An array index always starts from 0. If we have an array of 10 elements, then the elements to be referred to will be 0-9. Here, the length of array will be 10. For example: Integer array of 6 elements for storing the price of 6 varieties of apple. var apple = new Array(6); apple[0] = 23;…… Integer array of 4 elements for storing the interest rate of 4 bank products eg. Fixed Deposit, Saving A/c, Current A/c, Recurring Deposit will be constant. const INTR = new Array(4);
- 15. Difference Variables Constants Arrays Value may vary. Value can change once or multiple times via processing during the lifetime of program. Value remains constant. Cannot change through out the lifetime of program. Value may vary for each element individually during the lifetime of program. Stores single value Stores single value Stores multiple values depending on the length of array in different elements.
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