Top 10 JavaScript Features You’ve Probably Never Used

Most of the features described in this post have been deprecated and some have been forbidden by EcmaScript from being used. They are still commomly found in many libraries, so it is worth learning them.This post is for information only.

1. Tagged Template Literals

taggingThis`Hey!!, I'm  ${name} !!`

If you’ve ever used styled-components in React, you’ve used tagged template literals.Tagged template literals give us more control over the parsing of our literals. It allows us to parse template literals with a function.

taggingThis`Hey!!, I'm  ${name} !!`

The taggingThis is a function. The first argument of a tag function contains an array of the string values, the remaining argument is related to expressions.

function taggingThis(strings, ...vals) {
    //...
}
taggingThis`Hey!!, I'm  ${name} !!`

The strings argument will hold [ "Hey!!, I'm ", ' !!' ] while the rest of the arguments are passed into the array, vals[ 'Nnamdi' ].In this taggingThis the function we can manipulate the string and return something different.

function taggingThis(strings, ...vals) {
    return strings[0] + vals[0] + strings[1]
}
const name = "Nnamdi"
taggingThis `Hey!!, I'm  ${name} !!` // Hey!!, I'm  Nnamdi !!

2. Comma operator

, is an operator that separates expressions and returns the last expression in the chain.

let expr = (99, 88, 77)
expr // 77

We have three primary expressions 99, 88 and 77. All are evaluated and the last is assigned to expr.We see this in for loops:

for(let i = 0, ii = 1; i< 10; i++, ii--) { ... }

This comes in handy when we want to write short lambda functions:

const lb = (a, b, arr) => (arr.push(a*b), a*b)

There are two statements here, the first push the multiplication result to the array arr and the second multiples a and b. The result of the second is what is returned to the caller.It is also useful with the ternary operator since, same as the short lambda syntax, it only accepts expressions rather than statements

#javascript #ecmascript #es6

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Top 10 Trending Technologies Must Learn in 2021 | igmGuru

Technology has taken a place of more productiveness and give the best to the world. In the current situation, everything is done through the technical process, you don’t have to bother about doing task, everything will be done automatically.This is an article which has some important technologies which are new in the market are explained according to the career preferences. So let’s have a look into the top trending technologies followed in 2021 and its impression in the coming future in the world.

1. Data Science
   First in the list of newest technologies is surprisingly Data Science. Data Science is the automation that helps to be reasonable for complicated data. The data is produces in a very large amount every day by several companies which comprise sales data, customer profile information, server data, business data, and financial structures. Almost all of the data which is in the form of big data is very indeterminate. The character of a data scientist is to convert the indeterminate datasets into determinate datasets. Then these structured data will examine to recognize trends and patterns. These trends and patterns are beneficial to understand the company’s business performance, customer retention, and how they can be enhanced.

2. DevOps
   Next one is DevOps, This technology is a mixture of two different things and they are development (Dev) and operations (Ops). This process and technology provide value to their customers in a continuous manner. This technology plays an important role in different aspects and they can be- IT operations, development, security, quality, and engineering to synchronize and cooperate to develop the best and more definitive products. By embracing a culture of DevOps with creative tools and techniques, because through that company will gain the capacity to preferable comeback to consumer requirement, expand the confidence in the request they construct, and accomplish business goals faster. This makes DevOps come into the top 10 trending technologies.

3. Machine learning
   Next one is Machine learning which is constantly established in all the categories of companies or industries, generating a high command for skilled professionals. The machine learning retailing business is looking forward to enlarging to $8.81 billion by 2022. Machine learning practices is basically use for data mining, data analytics, and pattern recognition. In today’s scenario, Machine learning has its own reputed place in the industry. This makes machine learning come into the top 10 trending technologies. Get the best machine learning course and make yourself future-ready.

To want to know more click on Top 10 Trending Technologies in 2021

You may also read more blogs mentioned below

How to Become a Salesforce Developer

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The Scope of Hadoop and Big Data in 2021

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Top 10 JavaScript Features You’ve Probably Never Used

Most of the features described in this post have been deprecated and some have been forbidden by EcmaScript from being used. They are still commomly found in many libraries, so it is worth learning them.This post is for information only.

1. Tagged Template Literals

taggingThis`Hey!!, I'm  ${name} !!`

If you’ve ever used styled-components in React, you’ve used tagged template literals.Tagged template literals give us more control over the parsing of our literals. It allows us to parse template literals with a function.

taggingThis`Hey!!, I'm  ${name} !!`

The taggingThis is a function. The first argument of a tag function contains an array of the string values, the remaining argument is related to expressions.

function taggingThis(strings, ...vals) {
    //...
}
taggingThis`Hey!!, I'm  ${name} !!`

The strings argument will hold [ "Hey!!, I'm ", ' !!' ] while the rest of the arguments are passed into the array, vals[ 'Nnamdi' ].In this taggingThis the function we can manipulate the string and return something different.

function taggingThis(strings, ...vals) {
    return strings[0] + vals[0] + strings[1]
}
const name = "Nnamdi"
taggingThis `Hey!!, I'm  ${name} !!` // Hey!!, I'm  Nnamdi !!

2. Comma operator

, is an operator that separates expressions and returns the last expression in the chain.

let expr = (99, 88, 77)
expr // 77

We have three primary expressions 99, 88 and 77. All are evaluated and the last is assigned to expr.We see this in for loops:

for(let i = 0, ii = 1; i< 10; i++, ii--) { ... }

This comes in handy when we want to write short lambda functions:

const lb = (a, b, arr) => (arr.push(a*b), a*b)

There are two statements here, the first push the multiplication result to the array arr and the second multiples a and b. The result of the second is what is returned to the caller.It is also useful with the ternary operator since, same as the short lambda syntax, it only accepts expressions rather than statements

#javascript #ecmascript #es6

How to create a calculator using javascript - Pure JS tutorials |Web Tutorials

In this video I will tell you How to create a calculator using javascript very easily.

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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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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

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