Nandu Singh

Nandu Singh

1573090646

JavaScript Uppercase the First Letter of a String

JavaScript offers many ways to capitalize a string to make the first character uppercase. Learn the various ways, and also find out which one you should use, using plain JavaScript.

Following are the ways:

toUpperCase():

This function applies on a string and change the all letters to uppercase.

string.toUpperCase()

Return Value: This function returns the capitalized string.

slice():

This function applies on a string and slice it according to the passed parameter.

string.slice(start, end)

start: This parameter is required. It specifies the position where to begin the slicing. Indexing starts at position 0.
end: This is optional parameter. It specifies the position from where to end the slicing(without including the end). If this parameter is omitted, It selects all characters from start.
Return Value: This function returns the sliced string.

charAt():

This charAt() function returns the character at given position in string.

string.charAt(index)

Return Value: This function returns the character at specified position in string.

replace():

This is an built-in function in JavaScript which is used to replace a slice of a string with another string or a regular expression. Original string will not affected.

str.replace(A, B)

Parameters: Here the parameter A is regular expression and B is a string which will replace the content of the given string.
Return Value: It returns a new string with replaced items.

Look at the example below and choose for yourself the appropriate solution

The best way to do this is through a combination of two functions. One uppercases the first letter, and the second slices the string and returns it starting from the second character:

var name = 'nandu'
console.log(name.charAt(0).toUpperCase() + name.slice(1));
// => Nandu

Adding the function to the String prototype:

String.prototype.capitalize = function() {
  return this.charAt(0).toUpperCase() + this.slice(1);
}
var name = 'nandu';
console.log(name.capitalize());
// => Nandu

_.capitalize

If you use Lodash library. This function converts the first character of string to upper case and the remaining to lower case.

var name = 'nandu';
console.log(_.capitalize(name));
// => Nandu

Hapi Joi

If you use Node.js and want the result below, then perhaps Hapi Joi is the right choice

Joi.string().capitalize().validate('nandu singh') 
// => Nandu Singh

Html Css

Don’t forget that if you just want to capitalize for presentational purposes on a Web Page, CSS might be a better solution, just add a capitalize class to your HTML paragraph and use:

.capitalize {
  text-transform: capitalize;
}

Happy Coding!

#javascript #nodejs #uppercase

What is GEEK

Buddha Community

JavaScript Uppercase the First Letter of a String
Lowa Alice

Lowa Alice

1624399200

JavaScript Strings Tutorial

JavaScript Strings

📺 The video in this post was made by Programming with Mosh
The origin of the article: https://www.youtube.com/watch?v=09BwruU4kiY&list=PLTjRvDozrdlxEIuOBZkMAK5uiqp8rHUax&index=6
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Thanks for visiting and watching! Please don’t forget to leave a like, comment and share!

#javascript #strings #javascript strings #javascript strings tutorial

Nandu Singh

Nandu Singh

1573090646

JavaScript Uppercase the First Letter of a String

JavaScript offers many ways to capitalize a string to make the first character uppercase. Learn the various ways, and also find out which one you should use, using plain JavaScript.

Following are the ways:

toUpperCase():

This function applies on a string and change the all letters to uppercase.

string.toUpperCase()

Return Value: This function returns the capitalized string.

slice():

This function applies on a string and slice it according to the passed parameter.

string.slice(start, end)

start: This parameter is required. It specifies the position where to begin the slicing. Indexing starts at position 0.
end: This is optional parameter. It specifies the position from where to end the slicing(without including the end). If this parameter is omitted, It selects all characters from start.
Return Value: This function returns the sliced string.

charAt():

This charAt() function returns the character at given position in string.

string.charAt(index)

Return Value: This function returns the character at specified position in string.

replace():

This is an built-in function in JavaScript which is used to replace a slice of a string with another string or a regular expression. Original string will not affected.

str.replace(A, B)

Parameters: Here the parameter A is regular expression and B is a string which will replace the content of the given string.
Return Value: It returns a new string with replaced items.

Look at the example below and choose for yourself the appropriate solution

The best way to do this is through a combination of two functions. One uppercases the first letter, and the second slices the string and returns it starting from the second character:

var name = 'nandu'
console.log(name.charAt(0).toUpperCase() + name.slice(1));
// => Nandu

Adding the function to the String prototype:

String.prototype.capitalize = function() {
  return this.charAt(0).toUpperCase() + this.slice(1);
}
var name = 'nandu';
console.log(name.capitalize());
// => Nandu

_.capitalize

If you use Lodash library. This function converts the first character of string to upper case and the remaining to lower case.

var name = 'nandu';
console.log(_.capitalize(name));
// => Nandu

Hapi Joi

If you use Node.js and want the result below, then perhaps Hapi Joi is the right choice

Joi.string().capitalize().validate('nandu singh') 
// => Nandu Singh

Html Css

Don’t forget that if you just want to capitalize for presentational purposes on a Web Page, CSS might be a better solution, just add a capitalize class to your HTML paragraph and use:

.capitalize {
  text-transform: capitalize;
}

Happy Coding!

#javascript #nodejs #uppercase

Rahul Jangid

1622207074

What is JavaScript - Stackfindover - Blog

Who invented JavaScript, how it works, as we have given information about Programming language in our previous article ( What is PHP ), but today we will talk about what is JavaScript, why JavaScript is used The Answers to all such questions and much other information about JavaScript, you are going to get here today. Hope this information will work for you.

Who invented JavaScript?

JavaScript language was invented by Brendan Eich in 1995. JavaScript is inspired by Java Programming Language. The first name of JavaScript was Mocha which was named by Marc Andreessen, Marc Andreessen is the founder of Netscape and in the same year Mocha was renamed LiveScript, and later in December 1995, it was renamed JavaScript which is still in trend.

What is JavaScript?

JavaScript is a client-side scripting language used with HTML (Hypertext Markup Language). JavaScript is an Interpreted / Oriented language called JS in programming language JavaScript code can be run on any normal web browser. To run the code of JavaScript, we have to enable JavaScript of Web Browser. But some web browsers already have JavaScript enabled.

Today almost all websites are using it as web technology, mind is that there is maximum scope in JavaScript in the coming time, so if you want to become a programmer, then you can be very beneficial to learn JavaScript.

JavaScript Hello World Program

In JavaScript, ‘document.write‘ is used to represent a string on a browser.

<script type="text/javascript">
	document.write("Hello World!");
</script>

How to comment JavaScript code?

  • For single line comment in JavaScript we have to use // (double slashes)
  • For multiple line comments we have to use / * – – * /
<script type="text/javascript">

//single line comment

/* document.write("Hello"); */

</script>

Advantages and Disadvantages of JavaScript

#javascript #javascript code #javascript hello world #what is javascript #who invented javascript

Hire Dedicated JavaScript Developers -Hire JavaScript Developers

It is said that a digital resource a business has must be interactive in nature, so the website or the business app should be interactive. How do you make the app interactive? With the use of JavaScript.

Does your business need an interactive website or app?

Hire Dedicated JavaScript Developer from WebClues Infotech as the developer we offer is highly skilled and expert in what they do. Our developers are collaborative in nature and work with complete transparency with the customers.

The technology used to develop the overall app by the developers from WebClues Infotech is at par with the latest available technology.

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Book Free Interview: https://bit.ly/3dDShFg

#hire dedicated javascript developers #hire javascript developers #top javascript developers for hire #hire javascript developer #hire a freelancer for javascript developer #hire the best javascript developers

Niraj Kafle

1589255577

The essential JavaScript concepts that you should understand

As a JavaScript developer of any level, you need to understand its foundational concepts and some of the new ideas that help us developing code. In this article, we are going to review 16 basic concepts. So without further ado, let’s get to it.

#javascript-interview #javascript-development #javascript-fundamental #javascript #javascript-tips