Repeat String – Javascript [duplicate]

by

Note to new readers: This answer is old and and not terribly practical – it’s just “clever” because it uses Array stuff to get
String things done. When I wrote “less process” I definitely meant
“less code” because, as others have noted in subsequent answers, it
performs like a pig. So don’t use it if speed matters to you.

I’d put this function onto the String object directly. Instead of creating an array, filling it, and joining it with an empty char, just create an array of the proper length, and join it with your desired string. Same result, less process!

String.prototype.repeat = function( num )
{
    return new Array( num + 1 ).join( this );
}

alert( "string to repeat\n".repeat( 4 ) );

More Related Contents:

  1. How do I replace a character at a particular index in JavaScript?
  2. Trim string in JavaScript?
  3. How to check if a string “StartsWith” another string?
  4. How to count string occurrence in string?
  5. Fastest method to replace all instances of a character in a string [duplicate]
  6. Evaluating a string as a mathematical expression in JavaScript
  7. How can I use backslashes (\) in a string?
  8. How many bytes in a JavaScript string?
  9. Is there currently anyway to concatenate two or more string literal types to a single string literal type in TypeScript right now?
  10. How can I split a string into segments of n characters?
  11. How to escape JavaScript in JSP?
  12. Use dynamic (variable) string as regex pattern in JavaScript
  13. Does console.log invokes toString method of an object?
  14. JavaScript string and number conversion
  15. Convert JavaScript String to be all lower case
  16. Efficient Javascript String Replacement
  17. Get the first integers in a string with JavaScript
  18. match() returns array with two matches when I expect one match
  19. Javascript string comparison fails when comparing unicode characters
  20. Find the characters in a string which are not duplicated
  21. jQuery call function from a string [duplicate]
  22. HEX to Base64 converter for JavaScript
  23. how to convert a string to a Unix timestamp in javascript?
  24. Trying to capitalize the first character in array of strings, why this is not working?
  25. Are ES6 template literals faster than string concatenation?
  26. How Can I Truncate A String In jQuery?
  27. Javascript / Jquery – Get number from string
  28. How to test if a URL string is absolute or relative?
  29. Split a string, at every nth position, with JavaScript? [duplicate]
  30. Javascript – Replacing the escape character in a string literal

Leave a Comment