EDUCBA

EDUCBA

MENUMENU
  • Free Tutorials
  • Free Courses
  • Certification Courses
  • 600+ Courses All in One Bundle
  • Login

JavaScript Uppercase

By Sivaraman VSivaraman V

Home » Software Development » Software Development Tutorials » JavaScript Tutorial » JavaScript Uppercase

JavaScript Uppercase

Introduction to JavaScript Uppercase

In JavaScript string or character is to be converted into uppercase using str.toUpperCase() method this is used for converting entire strings into the Upper case format. Whenever we used toUpperCase() method the return value is to be string format and has converted into the uppercase the values are converted into the string if suppose isn’t one. This default method will not affect the values of the string variables itself since the strings are immutable this method will convert the non-string value to the string when we set this to the value that its not the string toUpperCase() method is not affected the original string values.

Syntax

The javascript string class have some predefined methods for achieving the web operations with more secure, since the strings are immutable so the string object does not change the values each and every string class object have their own syntax and attributes for achieving it successfully.

Start Your Free Software Development Course

Web development, programming languages, Software testing & others

<html>
<body>
<script>
var v1=’’;
var v2=v1.toUpperCase();
--some javascript logics----
</script>
<body>
</html>

The above codes are the basic syntax for using the toUpperCase() method in the script it will be used for all types of datatypes variables it supports both globally and internally with the web-based applications.

How is JavaScript Uppercase Done?

The JavaScript has the simplest text manipulations for transforming the strings between both the uppercase and lowercase letters since the capitalization of the letters are more secured with entire things are achievable because in most of the cases we actually don’t need javascript for some kind of processes if suppose the user datas are going to be presented with the web pages like css kind of tricks and presentation layer of the web based technologies that time its very easier and more performance to the transformed text using css technology because the css have its own limits it can be used only for the presentation like user-attractiveness of the web pages its kind of the text contents, image contents, and animations/videos, etc sometimes paragraphs with headers and footers, the links have some influence text using the attribute values like title contents or alt command with the data lines for exchanging the characters from one place into another place. Sometimes the web user also inserting the values like text format as the example we took before it has to be inserted with the database using JavaScript technology combined with some back-end and front-end technology called php/java/.net and html5/angular etc.

Once we have applied the toUpperCase() function in the string variable all of the declared lower set of characters also been changed into the capitalization format hence the JavaScript uppercase is one of the perfectly suited with the user method for quickly converting the all letters /characters in the specified string with the uppercase javascript. When we used this method it has to be some additional advantages like using the toUpperCase() function the javascript does n’t allow to modify the numbers, special characters and other operators since they are willing to retain the originally capitalized letters already we declared the original string we want to change the javascript is to be using toUpperCase() function they won’t be modified so it generates the new sting instead with the all set of characters most probably with the capitalized format. Whenever we used toUpperCase() function its most probably the first thing they have been implemented with the javascript has the first capitalized character task for automatically assigned through the javascript default compilers since they got the predefined set of instructions will be received using the user at the same time the compilers uppercase first letter to the strings they have some set of rules for writing the javascript to the UpperCase functions they not need for remembering all things for the user the most prominent way or else the main feature is the capitalization of the string characters using the default method string.toUpperCase() we have to been confirmed the parentheses are empty one and also the meaning is it does not take any arguments /parameters it also returns with the obvious values like newly generated strings in the script.

Examples of JavaScript Uppercase

Following are the examples as given below:

Example #1

Code:

<!DOCTYPEhtml>
<html>
<head>
<style>
.first {
color: green;
}
</style>
</head>
<body>
<h1>Welcome To My Domain</h1>
<p>Have a Nice day</p>
<pid="demo"></p>
<buttononclick="sam()">The Upper Case Character Example</button>
<script>
functionsam() {
vars = 'welcome to my domain other answers modify String.prototype (this answer used to as well), but I would advise against this now due to maintainability (hard to find out where the function is being added to the prototype and could cause conflicts if other code uses the same name / a browser adds a native function with that same name in future).'
vars1 = s.toUpperCase();
document.write(s1);
}
</script>
</body>
</html>

Output:

Output-1.1

JavaScript Uppercase-1.2

Example #2

Code:

<!DOCTYPEhtml>
<html>
<head>
<style>
.first {
color: green;
}
</style>
</head>
<body>
<h1>Welcome To My Domain</h1>
<p>Have a Nice day</p>
<pid="demo"></p>
<buttononclick="sam()">The Upper Case Character Example</button>
<script>
functionsam() {
var s = 'welcome to my domain other answers modify String.prototype (this answer used to as well), but I would advise against this now due to maintainability (hard to find out where the function is being added to the prototype and could cause conflicts if other code uses the same name / a browser adds a native function with that same name in future).'
var s1 = s.toLocaleUpperCase();
document.getElementById("demo").innerHTML = s1;
}
</script>
</body>
</html>

Output:

Output-2.1

JavaScript Uppercase-2.2

Conclusion

Finally, we have concluded section the UpperCase() method have some other similar methods like toLocaleUpperCase() method but all these methods will perform the same operations and some web based applications to validate the string characters using both upper and lower case characters for achieving the user requirement.

Popular Course in this category
JavaScript Training Program (39 Courses, 23 Projects, 4 Quizzes)39 Online Courses | 23 Hands-on Projects | 225+ Hours | Verifiable Certificate of Completion | Lifetime Access | 4 Quizzes with Solutions
4.5 (6,112 ratings)
Course Price

View Course

Related Courses
Angular JS Training Program (9 Courses, 7 Projects)Vue JS Training (1 Courses, 3 Project)

Recommended Articles

This is a guide to JavaScript Uppercase. Here we also discuss the introduction and how is javascript uppercase done along with different examples and its code implementation. You may also have a look at the following articles to learn more –

  1. JavaScript Custom Events
  2. JavaScript String replace
  3. JavaScript Compare Strings
  4. JavaScript Refresh Page

JavaScript Training Program (39 Courses, 23 Projects)

39 Online Courses

23 Hands-on Projects

225+ Hours

Verifiable Certificate of Completion

Lifetime Access

4 Quizzes with Solutions

Learn More

1 Shares
Share
Tweet
Share
Primary Sidebar
JavaScript Tutorial
  • Functions
    • JavaScript String Functions
    • JavaScript String Length
    • JavaScript split String
    • JavaScript Math Functions
    • Recursive Function in JavaScript
    • Regular Expressions in JavaScript
    • JavaScript Arrow Function
    • JavaScript Date Function
    • Match Function in Javascript
    • Replace Function in JavaScript
    • JavaScript Call Function
    • JavaScript Pass By Value
    • split() Function in JavaScript
    • reduce() Function JavaScript
    • JavaScript String replace
    • JavaScript Compare Strings
    • JavaScript Sleep
    • JavaScript toLowercase()
    • JavaScript String to Float
    • JavaScript String to Number
    • JavaScript String to int
    • JavaScript Object to String
    • JavaScript Convert to JSON
    • JavaScript Append
    • Javascript Array to String
    • Javascript Nested Functions
    • Set in JavaScript
    • Vectors in JavaScript
    • Javascript Anonymous Function
    • sign() in JavaScript
    • isNaN() JavaScript
    • Slice() Method in JavaScript
    • Javascript void
    • endsWith() in JavaScript
    • trim() Function in JavaScript
    • JavaScript typeof
    • JavaScript indexOf()
    • JavaScript encodeURI()
    • JavaScript Random
    • Ceil() in JavaScript
    • JavaScript tofixed
    • JavaScript hash()
    • JavaScript MD5
    • JavaScript search
    • JavaScript z-index
    • JavaScript Absolute Value
    • JavaScript Closure
    • Javascript Prototype
    • JavaScript Date parse
    • JavaScript DatePicker
    • JavaScript Parse String
    • JavaScript undefined
    • JavaScript FileReader
    • JavaScript Style visibility
    • JavaScript sleep Function
    • JavaScript forEach()
    • JavaScript keys()
    • JavaScript keycodes
    • JavaScript find() 
    • JavaScript values()
    • JavaScript Counter
    • JavaScript Countdown
    • JavaScript instanceof
    • JavaScript Delay
    • JavaScript Default Value
    • JavaScript concat String
    • JavaScript Document Object Model
    • Unshift JavaScript
    • JavaScript Callback Function
    • JavaScript hasOwnProperty()
    • JavaScript UUID
    • JSON Parser
    • JSON Array of Strings
    • Sublime Pretty JSON
    • JavaScript JSON to string
    • JavaScript Uppercase
    • JavaScript Namespace
    • JavaScript Range
    • JavaScript JSON
    • JavaScript exec()
    • JavaScript test()
    • JavaScript Self Invoking Functions
    • JSON Stringify Pretty
    • JavaScript findIndex()
    • JavaScript entries()
    • JavaScript join()
    • JavaScript lastIndexOf()
    • JavaScript every()
    • JavaScript getElementById()
    • JavaScript getElementsByName()
    • JavaScript getElementsByTagName()
    • JavaScript getElementsByClassName()
    • JavaScript Animation
    • JavaScript Minify
  • Basic
    • Introduction To JavaScript
    • What is JavaScript
    • What Javascript Can Do
    • Uses of JavaScript
    • How JavaScript Works
    • Is Javascript Case Sensitive
    • Is Javascript Object Oriented
    • Features of JavaScript
    • Careers in JavaScript
    • How to Install JavaScript
    • Best Javascript Frameworks
    • JavaScript MVC Frameworks
    • JavaScript Tools
    • What is JSON
    • What is Redux
    • What is ES6
    • Uses of React JS
    • How Analytics.JS Works
    • JavaScript Compilers
    • Java and JavaScript
    • JavaScript Literals
    • Variables in JavaScript
    • JavaScript Global Variable
    • JavaScript Keywords
    • String in JavaScript
    • Pointers in JavaScript
    • Primitive Data Types in JavaScript
    • JavaScript console log
    • Object in JavaScript
    • JavaScript Enum
    • Arithmetic in JavaScript
    • Assignment Operator in JavaScript
    • JavaScript Modules
    • Cheat Sheet JavaScript
    • NPM Alternatives
  • Objects
    • JavaScript Objects
    • JavaScript History Object
    • JavaScript Object Notation
    • JavaScript Map Object
    • JavaScript Date Object
    • JavaScript Window Object
    • JavaScript Object Constructors
    • JavaScript Clone Object
    • JavaScript Object.assign()
    • JavaScript object.is()
    • JavaScript Object to JSON
  • Operators
    • Arithmetic Operators in JavaScript
    • JavaScript Assignment Operators
    • Logical Operators in JavaScript
    • Comparison Operators in JavaScript
    • Bitwise Operators in JavaScript
    • Ternary Operator JavaScript
    • Boolean Operators in JavaScript
    • JavaScript?Modulo
    • JavaScript Boolean()
    • Unary Operators in JavaScript
    • JavaScript Number
    • JavaScript Floating
    • JS Operator Precedence
  • Control statements
    • Control Statement in JavaScript
    • Conditional Statements in JavaScript
    • Break Statement in JavaScript
    • Continue in JavaScript
    • Switch Statement in JavaScript
    • Case Statement in JavaScript
    • JavaScript if Statement
    • Nested if in JavaScript
    • JavaScript elseIf
  • Loops
    • For Loop in JavaScript
    • While Loop in JavaScript
    • Do While Loop in JavaScript
    • Nested Loop in JavaScript
  • Array
    • Arrays in JavaScript
    • 2D Arrays in JavaScript
    • Multi-Dimensional Array in JavaScript
    • Associative Array in JavaScript
    • JavaScript Declare Array
    • Arrays Methods in JavaScript
    • JavaScript Loop Array
    • String Array in JavaScript
    • JavaScript Get Array Length
    • JavaScript Merge Arrays
    • JavaScript Array Sort
    • JavaScript Array Push
    • JavaScript Iterate Array
    • JavaScript Empty Array
    • JavaScript Array Concat
    • Dynamic Array in JavaScript
    • JavaScript subarray()
    • JavaScript Array Filter
    • JavaScript Nested Array
    • JavaScript Flatten Array
    • JavaScript Array map()
    • JavaScript Array includes()
    • JavaScript Array Contain
    • JavaScript Array Slice
    • JavaScript Copy Array
    • Javascript Sum Array
    • JavaScript reverse Array
    • JSON Parse Array
  • Sorting
    • Sorting Algorithms in JavaScript
    • Insertion Sort in JavaScript
    • Merge Sort in JavaScript
    • Quick Sort in JavaScript
    • Bubble Sort in JavaScript
    • pop() in JavaScript
    • push() in JavaScript
    • Sort string in JavaScript
  • Events
    • JavaScript Events
    • JavaScript Event Handler
    • JavaScript Keyboard Events
    • JavaScript Mouse Events
    • JavaScript mousemove
    • JavaScript mousedown
    • JavaScript onchange
    • JavaScript onmouseout
    • JavaScript Onkeydown
    • JavaScript onsubmit
    • JavaScript Form Events
    • JavaScript Window Events
    • JavaScript Custom Events
    • JavaScript Alert
    • JavaScript Confirm
    • JavaScript onclick Alert
    • JavaScript Apply
    • JavaScript onblur
    • JavaScript onkeyup
    • JavaScript onfocus
  • Advanced
    • Constructor in JavaScript
    • Inheritance in JavaScript
    • Polymorphism in JavaScript
    • JavaScript Static Method
    • Navigator in JavaScript
    • Abstract Classes in JavaScript
    • keyword in JavaScript
    • Overriding in JavaScript
    • JavaScript Clear Console
    • JavaScript References
    • JavaScript list
    • JavaScript Grid
    • JavaScript innerText
    • Cookies in JavaScript
    • Delete Cookie in JS
    • Encapsulation in JavaScript
    • JavaScript Parent Node
    • JavaScript Parent
    • Javascript Remove Element
    • Errors in JavaScript
    • Forms in JavaScript
    • JavaScript Validator
    • JavaScript Form Validation
    • Email Validation in JavaScript
    • Hamburger Menu JavaScript
    • JavaScript Date Formats
    • JavaScript Number Format
    • JavaScript Debugger
    • JavaScript Stack
    • Queue in JavaScript
    • parseFloat in JavaScript
    • Javascript innerHTML
    • JavaScript setInterval
    • JavaScript Popup Box
    • JavaScript Message Box
    • Lightbox in JavaScript
    • Javascript Design Patterns
    • addEventListener JavaScript
    • Timer in JavaScript
    • JavaScript setTimeout
    • JavaScript clearTimeout()
    • JavaScript String Format
    • JavaScript Scroll to Top
    • JavaScript Function Declaration
    • JavaScript Function Arguments
    • Javascript Strict Mode
    • File Handling in JavaScript
    • JavaScript parseInt
    • JavaScript prompt
    • JavaScript Set Class
    • JavaScript Try Catch
    • Javascript Throw Exception
    • Finally in JavaScript
    • JavaScript Get Element by Class
    • JavaScript Obfuscator
    • Disable JavaScript
    • SetAttribute JavaScript
    • JavaScript Cursor
    • LinkedList in JavaScript
    • JavaScript WeakMap
    • JavaScript DOM
    • JavaScript defer
    • JavaScript Promise
    • Pagination in JavaScript
    • JavaScript Refresh Page
    • JSON.stringify JavaScript
    • JavaScript IIFE
    • JavaScript Fetch API
    • JavaScript Auto Complete
    • JavaScript Copy to Clipboard
    • JavaScript querySelector
    • JavaScript Graph
  • Programs
    • Patterns in JavaScript
    • Reverse in JavaScript
    • Palindrome in JavaScript
    • Factorial Program in JavaScript
    • Fibonacci Series In JavaScript
    • Square Root in JavaScript
    • Prime Number in JavaScript
    • Armstrong Number in JavaScript
    • Random Number Generator in JavaScript
    • Reverse String in JavaScript
    • JavaScript Random String
    • Functional Programming in JavaScript
  • Interview Questions
    • Javascript Interview Questions
    • JSON Interview Questions
    • JS Interview Questions

Related Courses

JavaScript Certification Training

Angular JS Certification Training

Vue JS Training

Footer
About Us
  • Blog
  • Who is EDUCBA?
  • Sign Up
  • Corporate Training
  • Certificate from Top Institutions
  • Contact Us
  • Verifiable Certificate
  • Reviews
  • Terms and Conditions
  • Privacy Policy
  •  
Apps
  • iPhone & iPad
  • Android
Resources
  • Free Courses
  • Java Tutorials
  • Python Tutorials
  • All Tutorials
Certification Courses
  • All Courses
  • Software Development Course - All in One Bundle
  • Become a Python Developer
  • Java Course
  • Become a Selenium Automation Tester
  • Become an IoT Developer
  • ASP.NET Course
  • VB.NET Course
  • PHP Course

© 2020 - EDUCBA. ALL RIGHTS RESERVED. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS.

EDUCBA Login

Forgot Password?

EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you
Book Your One Instructor : One Learner Free Class

Let’s Get Started

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy

EDUCBA

*Please provide your correct email id. Login details for this Free course will be emailed to you
EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you

Special Offer - JavaScript Training Program (39 Courses, 23 Projects) Learn More