관리-도구

편집 파일: tap.js

/** * This method invokes `interceptor` and returns `value`. The interceptor is * bound to `thisArg` and invoked with one argument; (value). The purpose of * this method is to "tap into" a method chain in order to perform operations * on intermediate results within the chain. * * @static * @memberOf _ * @category Chain * @param {*} value The value to provide to `interceptor`. * @param {Function} interceptor The function to invoke. * @param {*} [thisArg] The `this` binding of `interceptor`. * @returns {*} Returns `value`. * @example * * _([1, 2, 3]) * .tap(function(array) { * array.pop(); * }) * .reverse() * .value(); * // => [2, 1] */ function tap(value, interceptor, thisArg) { interceptor.call(thisArg, value); return value; } module.exports = tap;