froebel/surround.js

TypeScript utility library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.surround = exports.default = void 0;

var _except = require("./except");

/**
 * Surrounds the `str` with `surrounding`. `surrounding` must have an even length.
 *
 * @example
 * ```
 * surround("foo", "()")      // "(foo)"
 * surround("foo", "({[]})")  // "({[foo]})"
 * ```
 */
const surround = (str, surrounding) => {
  if (typeof surrounding !== "string") return str;
  (0, _except.assert)(surrounding.length % 2 === 0, "surrounding string must have even length");
  const half = surrounding.length / 2;
  return `${surrounding.slice(0, half)}${str}${surrounding.slice(half, half * 2)}`;
};

exports.surround = surround;
var _default = surround;
exports.default = _default;
module.exports = Object.assign(exports.default || {}, exports);