truncate-middle

There are cases where important information is at the end of the string and truncating the end isn't helpful.

Example use cases

var book1 = "America Again: Re-becoming the Greatness We Never Weren't by Stephen Colbert (978-0446583978)";
var truncateMiddle = require('truncate-middle');
var display = truncateMiddle(book1, 30, 16, '...');
// You get 'America Again: Re-becoming the...(978-0446583978)'

Usage

Install from npm.

npm install --save truncate-middle

Requiring in JavaScript

var truncateMiddle = require('truncate-middle');
truncateMiddle('the quick brown', 5, 3, '...');
// Result:
//  'the q...own'

Defaults:

truncateMiddle('the quick brown');
// Result:
//  'the quick brown'

Specifying a front length of 5:

truncateMiddle('the quick brown', 5);
// Result:
//  'the q…'

Specifying a front length of 5 and back length of 3:

truncateMiddle('the quick brown', 5, 3);
// Result:
//  'the q…own'

When there isn't anything to truncate:

truncateMiddle('the quick brown', 50, 50);
// Result:
//  'the quick brown'

Function signature

truncateMiddle(str, frontLen, backLen, truncateStr)

1. str (string): String to be truncated
2. frontLen (number): Number of characters to be remained in front.
3. backLen (number): Number of characters to be remained at the back.
4. truncateStr (string): String that is replaced the truncated portion. Defaults to …

Return is always the truncated string.

License

MIT