fromPairs.js•814 B
var _curry1 = require('./internal/_curry1');
var _isArray = require('./internal/_isArray');
/**
* Creates a new object out of a list key-value pairs.
*
* @func
* @memberOf R
* @since v0.3.0
* @category List
* @sig [[k,v]] -> {k: v}
* @param {Array} pairs An array of two-element arrays that will be the keys and values of the output object.
* @return {Object} The object made by pairing up `keys` and `values`.
* @see R.toPairs, R.pair
* @example
*
* R.fromPairs([['a', 1], ['b', 2], ['c', 3]]); //=> {a: 1, b: 2, c: 3}
*/
module.exports = _curry1(function fromPairs(pairs) {
var idx = 0;
var len = pairs.length;
var out = {};
while (idx < len) {
if (_isArray(pairs[idx]) && pairs[idx].length) {
out[pairs[idx][0]] = pairs[idx][1];
}
idx += 1;
}
return out;
});