Find and replace nth occurrence of [bracketed] expression in string

by

Here is another possible solution. You can pass the string.replace function a function to determine what the replacement value should be. The function will be passed three arguments. The first argument is the matching text, the second argument is the position within the original string, and the third argument is the original string.

The following example will replace the second “L” in “HELLO, WORLD” with “M”.

var s = "HELLO, WORLD!";
var nth = 0;
s = s.replace(/L/g, function (match, i, original) {
    nth++;
    return (nth === 2) ? "M" : match;
});
alert(s); // "HELMO, WORLD!";

See MDN: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/replace

More Related Contents:

  1. Fastest method to escape HTML tags as HTML entities?
  2. Remove whitespace and line breaks between HTML elements using jQuery
  3. Wrap tags around http text
  4. Javascript regex returning true.. then false.. then true.. etc [duplicate]
  5. Split a string based on multiple delimiters
  6. Insert space before capital letters
  7. Removing backslashes from strings in javascript
  8. Remove everything within script and style tags
  9. Does jQuery strip some html elements from a string when using .html()?
  10. How to hide css and js version details from weppalyzer in PHP
  11. How do I pass a URL as a parameter? [closed]
  12. .index() only for one instance of class [closed]
  13. How to scroll an HTML page to a given anchor
  14. How to reload current page without losing any form data?
  15. Check for special characters in string
  16. Call javascript function after script is loaded
  17. Dynamically loading css stylesheet doesn’t work on IE
  18. How can I detect whether an iframe is loaded?
  19. Passing regex modifier options to RegExp object
  20. Can I use javascript to dynamically change a video’s source?
  21. HTML 5 – Play file at certain time point
  22. Bootstrap 4 multiselect dropdown
  23. How to enable Bootstrap tooltip on disabled button?
  24. Prevent Highlight of Text Table
  25. Regex in JavaScript for validating decimal numbers
  26. User Activity Tracking using javascript library [closed]
  27. Targeting $(this) within nested for each loops in jQuery
  28. How to get on-screen visible element objects in jQuery? [duplicate]
  29. JavaScript runtime error: ‘$’ is undefined
  30. Regular Expression to MATCH ALL words in a query, in any order

Leave a Comment