Concatenation Of Javascript Strings

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Michael Zippo 04.11.2021

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The JavaScript concat () method merges the contents of two or more strings. You can also use the concatenation operator + to join multiple strings. The concatenation operator is preferred in most cases because it is more concise.

Concatenation is a technique used in programming to join two or more strings into a single value. For example, you might have two employee lists stored as strings, one for each branch of your business. You can merge them all into a list of all your employees.

There are two ways to concatenate a string:

• Using the concatenation operator (+).
• Using the concat () method.

In this tutorial, we will see how to concatenate a JavaScript string . We’ll look at the plus sign (+) concatenation operator and the strings concat () method. Without further ado, let’s get started!

The concat () method supports the browser on all modern browsers.

There is a method called Array.concat () which concatenates two arrays. In this article, we’ll focus on the string concat () method.

Concatenate JavaScript strings

You can combine two or more JavaScript strings into one. The process of joining strings is called JavaScript string concatenation. To concatenate strings without depending on any built-in function, you can use the + operator.

Here is the syntax of the concatenation operator:

Concatenation is useful if you have separate string values ‚Äã‚Äãthat you want to display as one. For example, suppose we have two strings. A string contains the name of a user. The other string contains the last name. You can combine these two values ‚Äã‚Äãto get the entire name as a string.

Suppose that we wanted to join two strings. One string is the name of a customer. Another string is the last name of that customer. We join these two strings using the "+" operator:

Our code returns: " BillJohnson ". Our strings are not automatically separated by a space. If we want a space between our strings, we need to specify one in one of our strings:

Our code returns now: "Bill Johnson.‚" That’s because we’ve added a space in the "Bill‚" string.

concat () method JavaScript string

The concat () c JavaScript method joins two or more strings. concat () accepts as many parameters as you want, each one representing a string to join. The concat () method is an alternative to the concatenation operator.

Here is the syntax of the concat () JavaScript string function:

You can pass as many parameters as you want in concat ().

Let’s take an example to illustrate how the concat () string function works in action. Let’s say we have a user’s first, middle and middle names and want to combine them into one string. We could use the following code to achieve this:

Our code returns: "Lucy Turnbull Cooper". It is important to note that we have included spaces at the beginning of "second_name & rdquo; and " second_name ". This ensures that our final string has been separated by spaces.

You can also use the concat () function to combine more than two strings. Here is an example of concat () used to combine three strings:

Our code returns a new string: " Hello, Alex ! It’s a great day!"

The concat () JavaScript string function doesn’t modify our original string. Instead, it creates a new string with our values ‚Äã‚Äãconcatenated. So if we wanted to store our new string for later use, we should assign to a variable like this:

Our code returns the same as above, but now our new string is stored in the variable "new_string."

Conclusion

The JavaScript concatenation operator is a plus sign (+). This operator allows you to add the content of two or more channels together to create a larger channel. You can also use the concat () method to join strings.