Welcome to Subscribe On Youtube
2796. Repeat String
Description
Write code that enhances all strings such that you can call the string.replicate(x)
method on any string and it will return repeated string x
times.
Try to implement it without using the built-in method string.repeat
.
Example 1:
Input: str = "hello", times = 2 Output: "hellohello" Explanation: "hello" is repeated 2 times
Example 2:
Input: str = "code", times = 3 Output: "codecodecode" Explanation: "code" is repeated 3 times
Example 3:
Input: str = "js", times = 1 Output: "js" Explanation: "js" is repeated 1 time
Constraints:
1 <= str.length <= 1000
1 <= times <= 1000
Solutions
-
declare global { interface String { replicate(times: number): string; } } String.prototype.replicate = function (times: number) { return new Array(times).fill(this).join(''); };
-
String.prototype.replicate = function (times) { return Array(times).fill(this).join(''); };