@provenanceio/wallet-utils/esm/utils/display/trimString.js

Typescript Utilities for Provenance Blockchain Wallet

// Limit the maxLength of a string
// ellipsisIndex arg will add ellipsis at that index (defaults to the end)
// Examples:
// trimString('fantastic', 3, -1) => 'fan...';
// trimString('fantastic', 3, 2) => 'fa...c'
// trimString('fantastic', 6, 1) => 'f...astic'
// trimString('fantastic', 6, 3) => 'fan...tic'
// trimString('fantastic', 3, 0) => '...tic'
export var trimString = function trimString() {
  var text = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
  var maxLength = arguments.length > 1 ? arguments[1] : undefined;
  var ellipsisIndex = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : -1;
  var ellipsisValue = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : '...';
  if (!text) return text;
  var textLength = text.length; // If maxLength is 0, just return the ellipsis

  if (!maxLength) return ellipsisValue; // Text must be a string, if it isn't return whatever was passed in

  if (typeof text !== 'string') return text; // EllipsisIndex requested past the length of the string

  if (ellipsisIndex > maxLength) return text; // If the text is shorter than the max, just return it

  if (textLength <= maxLength) return text; // Ellipsis at end (ellipsisIndex -1 | Prov...)

  if (ellipsisIndex === -1) return text.slice(0, maxLength - textLength).concat(ellipsisValue); // Ellipsis at start (ellipsisIndex 0 | ...ance)

  if (ellipsisIndex === 0) return ''.concat(ellipsisValue, text.slice(textLength - maxLength)); // Ellipsis middle (ellipsisIndex >0 | Pr...ce)

  var front = text.slice(0, ellipsisIndex);
  var back = text.split('').reverse().join('').slice(0, maxLength - ellipsisIndex).split('').reverse().join('');
  return ''.concat(front, ellipsisValue, back);
};