text: JavaScript: Convert a number from one base to another
  
  JavaScript Math: Exercise-1 with Solution
  
  Write a JavaScript function to convert a number from one base to another.
  
  Sample Solution:
  
  JavaScript Code:
  
  ``````var base_convert = function(number, initial_base, change_base) {
  if (initial_base<2 || change_base<2 || initial_base>36 || change_base>36)
  return 'Base between 2 and 36';
  return parseInt(number + '', initial_base)
  .toString(change_base);
  }
  console.log(base_convert('E164',16,8));
  console.log(base_convert(1000,2,8));
  console.log(base_convert(10,1,2));
  console.log(base_convert(10,-2,2));
  ```
  ```
  
  Output:
  
  ```160544
  10
  Base between 2 and 36
  Base between 2 and 36
  ```
  
  Explanation:
  
  In the exercise above,
  
  • Function base_convert():
  • The code defines a function named "base_convert()" which takes three parameters: 'number', 'initial_base', and 'change_base'. This function is designed to convert numbers from one base to another.
  • Input validation:
  • The function checks if either 'initial_base' or 'change_base' is less than 2 or greater than 36. If either condition is true, it returns the message 'Base between 2 and 36', indicating that the base should be within the valid range of 2 to 36.
  • Number conversion:
  • If the input bases are valid, the function converts the input 'number' to an integer using parseInt(number + '', initial_base). The "parseInt()" function parses a string argument and returns an integer of the specified radix (the 'initial_base' in this case).
  • Then, it converts the obtained integer to a string representation in the desired base using .toString(change_base). This converts the number to the specified 'change_base'.
  • The function returns the converted number as a string.
  • Finally the code demonstrates two function calls using console.log():
  • console.log(base_convert('E164', 16, 8));: This converts the hexadecimal number 'E164' to octal base (8) and prints the result.
  • console.log(base_convert(1000, 2, 8));: This converts the decimal number 1000 from binary base (2) to octal base (8) and prints the result.
  
  Flowchart:
  
  Live Demo:
  
  See the Pen javascript-math-exercise-1 by w3resource (@w3resource) on CodePen.
  
  Improve this sample solution and post your code through Disqus.
  
  What is the difficulty level of this exercise?
  
  Test your Programming skills with w3resource's quiz.
  
  ﻿
explanation: The document provides a JavaScript exercise that involves writing a function to convert a number from one base to another. It includes a sample solution with code, an explanation of the function, and some test cases. The document also asks about the difficulty level of the exercise and invites users to improve the solution and post their code.
distilabel_metadata.content: Evaluate the user given text extract and determine if it contains a math question and optionally and answer to this question.
  
  Output rules:
  
  1. Briefly describe the document and mention if it contains a question or a question and answer.
  2. Finalize the output with: Label: no-question,question,question-and-answer,multiple-question,multiple-question-and-answer
distilabel_metadata.role: system
distilabel_metadata.content: JavaScript: Convert a number from one base to another
  
  JavaScript Math: Exercise-1 with Solution
  
  Write a JavaScript function to convert a number from one base to another.
  
  Sample Solution:
  
  JavaScript Code:
  
  ``````var base_convert = function(number, initial_base, change_base) {
  if (initial_base<2 || change_base<2 || initial_base>36 || change_base>36)
  return 'Base between 2 and 36';
  return parseInt(number + '', initial_base)
  .toString(change_base);
  }
  console.log(base_convert('E164',16,8));
  console.log(base_convert(1000,2,8));
  console.log(base_convert(10,1,2));
  console.log(base_convert(10,-2,2));
  ```
  ```
  
  Output:
  
  ```160544
  10
  Base between 2 and 36
  Base between 2 and 36
  ```
  
  Explanation:
  
  In the exercise above,
  
  • Function base_convert():
  • The code defines a function named "base_convert()" which takes three parameters: 'number', 'initial_base', and 'change_base'. This function is designed to convert numbers from one base to another.
  • Input validation:
  • The function checks if either 'initial_base' or 'change_base' is less than 2 or greater than 36. If either condition is true, it returns the message 'Base between 2 and 36', indicating that the base should be within the valid range of 2 to 36.
  • Number conversion:
  • If the input bases are valid, the function converts the input 'number' to an integer using parseInt(number + '', initial_base). The "parseInt()" function parses a string argument and returns an integer of the specified radix (the 'initial_base' in this case).
  • Then, it converts the obtained integer to a string representation in the desired base using .toString(change_base). This converts the number to the specified 'change_base'.
  • The function returns the converted number as a string.
  • Finally the code demonstrates two function calls using console.log():
  • console.log(base_convert('E164', 16, 8));: This converts the hexadecimal number 'E164' to octal base (8) and prints the result.
  • console.log(base_convert(1000, 2, 8));: This converts the decimal number 1000 from binary base (2) to octal base (8) and prints the result.
  
  Flowchart:
  
  Live Demo:
  
  See the Pen javascript-math-exercise-1 by w3resource (@w3resource) on CodePen.
  
  Improve this sample solution and post your code through Disqus.
  
  What is the difficulty level of this exercise?
  
  Test your Programming skills with w3resource's quiz.
  
  ﻿
distilabel_metadata.role: user
distilabel_metadata.raw_output_q_a_detector_0: The document provides a JavaScript exercise that involves writing a function to convert a number from one base to another. It includes a sample solution with code, an explanation of the function, and some test cases. The document also asks about the difficulty level of the exercise and invites users to improve the solution and post their code.
  
  Label: question-and-answer