Replace only specific occurrences of a string. e.g. if the string exists 10 times, you can replace, say, the 3rd and 8th occurrences only, etc. Returns a new string with nth specific matches of a pattern replaced by a replacement. The pattern can be a string or a RegExp, and the replacement can be a string or a function to be called for each match.
npm i replace-nth --save
Run the tests:
npm test
See the tests for examples.
var replaceNth = require('replace-nth');
replaceNth( params );
Params:
num (string): a number formatted as a string.pattern (regex|string): The actual pattern to find and replace nth timesreplacement (string): the replacement to usestr (string): the string to search for replacementsExample:
var params = {
// pass any string
str: 'aaaaaaaaaaaaaaa'
// The nth number of match(es) to replace
num: '[135]',
// The pattern to replace
pattern: /a/g,
// the replacement to use
replacement: 'B',
};
console.log(replaceNth(params));
//=> 'BaBaBaaaaaaaaaa'
'12' returns twelvth match,'[124]' returns the first, second and fourth matchs, and so on.Jon Schlinkert
Copyright (c) 2014 Jon Schlinkert, contributors.
Released under the MIT license
This file was generated by verb-cli on October 04, 2014.