test-action-debian-package/node_modules/ramda/es/concat.js
Dawid Dziurla 9308795b8b
update
2020-03-26 15:37:35 +01:00

65 lines
1.8 KiB
JavaScript

import _curry2 from "./internal/_curry2.js";
import _isArray from "./internal/_isArray.js";
import _isFunction from "./internal/_isFunction.js";
import _isString from "./internal/_isString.js";
import toString from "./toString.js";
/**
* Returns the result of concatenating the given lists or strings.
*
* Note: `R.concat` expects both arguments to be of the same type,
* unlike the native `Array.prototype.concat` method. It will throw
* an error if you `concat` an Array with a non-Array value.
*
* Dispatches to the `concat` method of the first argument, if present.
* Can also concatenate two members of a [fantasy-land
* compatible semigroup](https://github.com/fantasyland/fantasy-land#semigroup).
*
* @func
* @memberOf R
* @since v0.1.0
* @category List
* @sig [a] -> [a] -> [a]
* @sig String -> String -> String
* @param {Array|String} firstList The first list
* @param {Array|String} secondList The second list
* @return {Array|String} A list consisting of the elements of `firstList` followed by the elements of
* `secondList`.
*
* @example
*
* R.concat('ABC', 'DEF'); // 'ABCDEF'
* R.concat([4, 5, 6], [1, 2, 3]); //=> [4, 5, 6, 1, 2, 3]
* R.concat([], []); //=> []
*/
var concat =
/*#__PURE__*/
_curry2(function concat(a, b) {
if (_isArray(a)) {
if (_isArray(b)) {
return a.concat(b);
}
throw new TypeError(toString(b) + ' is not an array');
}
if (_isString(a)) {
if (_isString(b)) {
return a + b;
}
throw new TypeError(toString(b) + ' is not a string');
}
if (a != null && _isFunction(a['fantasy-land/concat'])) {
return a['fantasy-land/concat'](b);
}
if (a != null && _isFunction(a.concat)) {
return a.concat(b);
}
throw new TypeError(toString(a) + ' does not have a method named "concat" or "fantasy-land/concat"');
});
export default concat;