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

JavaScript Basic: Exercise-22 with Solution

Remove Character at Specified Position in String

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

This JavaScript program removes a character at a specified position in a given string and returns the modified string. It takes the position as input and removes the character at that position using string manipulation methods like substring() or slice(). Finally, it returns the modified string after removing the character at the specified position.

Visual Presentation:

Sample Solution:

JavaScript Code:

// Define a function named remove_character that takes two parameters, str and char_pos
function remove_character(str, char_pos) {
  // Extract the substring from the beginning of str up to (but not including) char_pos
  part1 = str.substring(0, char_pos);
  // Extract the substring from char_pos + 1 to the end of str
  part2 = str.substring(char_pos + 1, str.length);
  // Return the concatenation of part1 and part2, effectively removing the character at char_pos
  return (part1 + part2);
}

// Log the result of calling the remove_character function with the arguments "Python" and 0 to the console
console.log(remove_character("Python", 0));

// Log the result of calling the remove_character function with the arguments "Python" and 3 to the console
console.log(remove_character("Python", 3));

// Log the result of calling the remove_character function with the arguments "Python" and 5 to the console
console.log(remove_character("Python", 5)); 

Output:

ython
Pyton
Pytho

Live Demo:

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

Flowchart:

ES6 Version:

// Using ES6 arrow function syntax to define the remove_character function
const remove_character = (str, char_pos) => {
  // Extract the substring from the beginning of str up to (but not including) char_pos
  const part1 = str.substring(0, char_pos);
  // Extract the substring from char_pos + 1 to the end of str
  const part2 = str.substring(char_pos + 1, str.length);
  // Return the concatenation of part1 and part2, effectively removing the character at char_pos
  return part1 + part2;
};

// Log the result of calling the remove_character function with the arguments "Python" and 0 to the console
console.log(remove_character("Python", 0));

// Log the result of calling the remove_character function with the arguments "Python" and 3 to the console
console.log(remove_character("Python", 3));

// Log the result of calling the remove_character function with the arguments "Python" and 5 to the console
console.log(remove_character("Python", 5));

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