72 lines
2.0 KiB
JavaScript
72 lines
2.0 KiB
JavaScript
/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var isObjectLike = require( '@stdlib/assert/is-object-like' );
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var copy = require( './../../copy' );
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var defaults = require( './defaults.js' );
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var validate = require( './validate.js' );
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var flatten = require( './flatten.js' );
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// MAIN //
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/**
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* Flattens an object.
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*
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* @param {ObjectLike} obj - object to flatten
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* @param {Options} [options] - function options
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* @param {NonNegativeInteger} [options.depth] - maximum depth to flatten
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* @param {boolean} [options.copy=false] - boolean indicating whether to deep copy
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* @param {boolean} [options.flattenArrays=false] - boolean indicating whether to flatten arrays
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* @param {string} [options.delimiter='.'] - key path delimiter
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* @throws {TypeError} first argument must be object-like
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* @throws {TypeError} options argument must be an object
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* @throws {TypeError} must provide valid options
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* @returns {ObjectLike} flattened object
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*
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* @example
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* var obj = {'a':{'b':{'c':'d'}}};
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*
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* var out = flattenObject( obj );
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* // returns {'a.b.c':'d'}
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*/
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function flattenObject( obj, options ) {
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var opts;
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var err;
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if ( !isObjectLike( obj ) ) {
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throw new TypeError( 'invalid argument. First argument must be object-like. Value: `' + obj + '`.' );
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}
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opts = copy( defaults );
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if ( arguments.length > 1 ) {
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err = validate( opts, options );
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if ( err ) {
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throw err;
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}
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}
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return flatten( obj, opts );
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}
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// EXPORTS //
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module.exports = flattenObject;
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