JavaScript String concat() method : To join one or more strings we use the concat method in JavaScript String.
Syntax of concat method :
string.concat(string1, string2, ..., stringX)
In the above syntax you can pass any number of parameters one or more than one.
Example of concat method : Here I will show you how you can add single string in first example and in second example I will show you to add two strings into one string.
Sample1.html
<!DOCTYPE html>
<html>
<body>
<p>We will join two strings.</p>
<button onclick="joinString()">Join</button>
<p id="container"></p>
<script>
function joinString() {
var val1 = "Welcome ";
var val2 = "User!";
var result = val1.concat(val2);
document.getElementById("container").innerHTML = result;
}
</script>
</body>
</html>
Output : Welcome User!
Sample2.html
<!DOCTYPE html>
<html>
<body>
<p>We will join two strings to one string.</p>
<button onclick="joinString()">Join</button>
<p id="container"></p>
<script>
function joinString() {
var val = "He ";
var val2 = "is";
var val3 = " great person.";
var result = val.concat(val2, val3);
document.getElementById("container").innerHTML = result;
}
</script>
</body>
</html>
Output : He is great person.
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