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JavaScript: Remove a character at the specified position of a given string and return the new string

JavaScript Basic: Exercise-22 with Solution

Write a JavaScript program to remove a character at the specified position of a given string and return the new string.

Pictorial Presentation:

JavaScript: Remove a character at the specified position of a given string and return the new string

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JavaScript program to remove a character at the specified position of a given string and return the new string.</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function remove_character(str, char_pos) 
 {
  part1 = str.substring(0, char_pos);
  part2 = str.substring(char_pos + 1, str.length);
  return (part1 + part2);
 }

console.log(remove_character("Python",0));
console.log(remove_character("Python",3));
console.log(remove_character("Python",5));

Sample Output:

ython
Pyton
Pytho

Flowchart:

Flowchart: JavaScript - Remove a character at the specified position of a given string and return the new string

ES6 Version:

function remove_character(str, char_pos) 
 {
  part1 = str.substring(0, char_pos);
  part2 = str.substring(char_pos + 1, str.length);
  return (part1 + part2);
 }

console.log(remove_character("Python",0));
console.log(remove_character("Python",3));
console.log(remove_character("Python",5));

Live Demo:

See the Pen JavaScript: characterposition: basic-ex-22 by w3resource (@w3resource) on CodePen.


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Next: Write a JavaScript program to create a new string from a given string changing the position of first and last characters.

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JavaScript: Tips of the Day

Converts a string to title case

Example:

const toTitleCase = str =>
  str
    .match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
    .map(x => x.charAt(0).toUpperCase() + x.slice(1))
    .join(' ');
console.log(toTitleCase('some_database_field_name')); // 'Some Database Field Name'
console.log(toTitleCase('Some label that needs to be title-cased')); // 'Some Label That Needs To Be Title Cased'
console.log(toTitleCase('some-package-name')); // 'Some Package Name'
console.log(toTitleCase('some-mixed_string with spaces_underscores-and-hyphens')); // 'Some Mixed String With Spaces Underscores And Hyphens'

Output:

"Some Database Field Name"
"Some Label That Needs To Be Title Cased"
"Some Package Name"
"Some Mixed String With Spaces Underscores And Hyphens"