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x/ramda/mergeLeft.js

:ram: Practical functional Javascript
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import _objectAssign from './internal/_objectAssign';import _curry2 from './internal/_curry2';

/** * Create a new object with the own properties of the first object merged with * the own properties of the second object. If a key exists in both objects, * the value from the first object will be used. * * @func * @memberOf R * @since v0.26.0 * @category Object * @sig {k: v} -> {k: v} -> {k: v} * @param {Object} l * @param {Object} r * @return {Object} * @see R.mergeRight, R.mergeDeepLeft, R.mergeWith, R.mergeWithKey * @example * * R.mergeLeft({ 'age': 40 }, { 'name': 'fred', 'age': 10 }); * //=> { 'name': 'fred', 'age': 40 } * * const resetToDefault = R.mergeLeft({x: 0}); * resetToDefault({x: 5, y: 2}); //=> {x: 0, y: 2} * @symb R.mergeLeft(a, b) = {...b, ...a} */var mergeLeft = _curry2(function mergeLeft(l, r) { return _objectAssign({}, r, l);});export default mergeLeft;