JavaScript: Create a new string of specified copies of a given string
JavaScript Basic: Exercise-57 with Solution
Write a JavaScript program to create a new string of specified copies (positive numbers) of a given string.
This JavaScript program takes a string and a positive number as inputs, then creates a new string by repeating the given string the specified number of times. The result is a single string made up of the original string copied multiple times.
Visual Presentation:
Sample Solution:
JavaScript Code:
// Define a function named string_copies with parameters str (string) and n (number)
function string_copies(str, n) {
// Check if n is less than 0
if (n < 0)
// Return false if n is negative
return false;
else
// Use the repeat method to replicate the string 'n' times
return str.repeat(n);
}
// Log the result of calling string_copies with the arguments "abc" and 5 to the console
console.log(string_copies("abc", 5));
// Log the result of calling string_copies with the arguments "abc" and 0 to the console
console.log(string_copies("abc", 0));
// Log the result of calling string_copies with the arguments "abc" and -2 to the console
console.log(string_copies("abc", -2));
Output:
abcabcabcabcabc false
Live Demo:
See the Pen JavaScript - create a new string of specified copies (positive number) of a given string. - basic-ex-57 by w3resource (@w3resource) on CodePen.
Flowchart:
ES6 Version:
// Define a function named string_copies with parameters str and n
const string_copies = (str, n) => {
// Check if n is less than 0, and return false if true
if (n < 0) {
return false;
} else {
// Use the repeat method to repeat the string n times
return str.repeat(n);
}
};
// Call the function with sample arguments and log the results to the console
console.log(string_copies("abc", 5));
console.log(string_copies("abc", 0));
console.log(string_copies("abc", -2));
Improve this sample solution and post your code through Disqus.
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