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JavaScript: Create a new string without the first and last character of a given string

JavaScript Basic: Exercise-60 with Solution

Write a JavaScript program to create a new string without the first and last character of a given string.

Pictorial Presentation:

JavaScript:  Create a new string without the first and last character of a given string

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JavaScript program to create a new string without the first and last character of a given string.</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function without_first_end(str) {
  return str.substring(1, str.length - 1);
}
console.log(without_first_end('JavaScript'));
console.log(without_first_end('JS'));
console.log(without_first_end('PHP'));

Sample Output:

avaScrip

H

Flowchart:

Flowchart: JavaScript - Create a new string without the first and last character of a given string

ES6 Version:

function without_first_end(str) {
  return str.substring(1, str.length - 1);
}
console.log(without_first_end('JavaScript'));
console.log(without_first_end('JS'));
console.log(without_first_end('PHP'));

Live Demo:

See the Pen JavaScript - Create a new string without the first and last character of a given string - basic-ex-60 by w3resource (@w3resource) on CodePen.


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

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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