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JavaScript: Concatenate two strings except their first character

JavaScript Basic: Exercise-61 with Solution

Write a JavaScript program to concatenate two strings except their first character.

Pictorial Presentation:

JavaScript:  Concatenate two strings except their first character

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JavaScript program to concatenate two strings except their first character.</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function concatenate(str1, str2) {
  str1 = str1.substring(1, str1.length);
  str2 = str2.substring(1, str2.length);
  return str1 + str2;
}

console.log(concatenate("PHP","JS"));
console.log(concatenate("A","B"));
console.log(concatenate("AA","BB"));

Sample Output:

HPS

AB

Flowchart:

Flowchart: JavaScript - Concatenate two strings except their first character

ES6 Version:

function concatenate(str1, str2) {
  str1 = str1.substring(1, str1.length);
  str2 = str2.substring(1, str2.length);
  return str1 + str2;
}

console.log(concatenate("PHP","JS"));
console.log(concatenate("A","B"));
console.log(concatenate("AA","BB"));

Live Demo:

See the Pen JavaScript - Concatenate two strings except their first character - basic-ex-61 by w3resource (@w3resource) on CodePen.


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Previous: Write a JavaScript program to create a new string without the first and last character of a given string.
Next: Write a JavaScript program to move last three character to the start of a given string.

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JavaScript: Tips of the Day

Parameter's value

function getItems(fruitList, ...args, favoriteFruit) {
  return [...fruitList, ...args, favoriteFruit]
}

getItems(["banana", "apple"], "pear", "orange")

...args is a rest parameter. The rest parameter's value is an array containing all remaining arguments, and can only be the last parameter! In this example, the rest parameter was the second parameter. This is not possible, and will throw a syntax error.

function getItems(fruitList, favoriteFruit, ...args) {
  return [...fruitList, ...args, favoriteFruit];
}


getItems(['banana', 'apple'], 'pear', 'orange');
The above example works. This returns the array [ 'banana', 'apple', 'orange', 'pear' ].

Ref: https://bit.ly/3jFRBje