Javascript String Match Example | Javascript match()

Javascript string match() is an inbuilt function that retrieves the matches when matching a string against a regular expression. Javascript match() method searches the string for the match against the regular expression, and returns the matches, as an Array object.

If a  regular expression does not include the g modifier to perform a global search, then the javascript string match() method will return only the first match in the  string.

Javascript String Match Example

The syntax for the String match() method is the following.

string.match(regexp)

The regexp parameter is required. It is the value to search for, as a regular expression. Let us take an example by creating a file called app.js and add the following code.

We will use the Node.js to run the file and log the output.

// app.js

let str = 'Obama was US president';
let newArray  = str.match(/ba/);
console.log(newArray);

So, in the above example, we have passed the regular expression which is saying that return an array of all the elements satisfying that regular expression.

#javascript #javascript match #regexp #app.js

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Javascript String Match Example | Javascript match()
Lowa Alice

Lowa Alice

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JavaScript Strings Tutorial

JavaScript Strings

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Javascript String Match Example | Javascript match()

Javascript string match() is an inbuilt function that retrieves the matches when matching a string against a regular expression. Javascript match() method searches the string for the match against the regular expression, and returns the matches, as an Array object.

If a  regular expression does not include the g modifier to perform a global search, then the javascript string match() method will return only the first match in the  string.

Javascript String Match Example

The syntax for the String match() method is the following.

string.match(regexp)

The regexp parameter is required. It is the value to search for, as a regular expression. Let us take an example by creating a file called app.js and add the following code.

We will use the Node.js to run the file and log the output.

// app.js

let str = 'Obama was US president';
let newArray  = str.match(/ba/);
console.log(newArray);

So, in the above example, we have passed the regular expression which is saying that return an array of all the elements satisfying that regular expression.

#javascript #javascript match #regexp #app.js

Coy  Roberts

Coy Roberts

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Javascript String Split Example | Javascript String.split()

Javascript string split() is an inbuilt function that is used to split the string into an array of the substring and returns a new collection.  If the empty string (“”) is used as the separator, the string is split between each character. The split() method does not mutate the original string.

Javascript string split example

The syntax is following for String Split Example.

string.split(separator, limit)

Syntax Explanation

Arguments

The first argument to the split function is the string which specifies the points where the split has to take place.

This argument can be treated as a simple string or as a regular expression. If the separator is unspecified, then the whole string becomes a single array element.

The same thing also happens when a separator is not present in the string. If the separator is an empty string (“”), then every character of the string is separated.

The second argument to a function limit defines an upper limit on the number of splits to be found in a given string. If a string remains unchecked after a threshold or limit is reached, then it is not reported in an array.

#javascript #javascript string.split #regular expression

Rahul Jangid

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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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