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feat: add initial plot/vega/base/to-json implementation
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‎lib/node_modules/@stdlib/plot/vega/base/to-json/lib/index.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 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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/**
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* Serialize a list of private instance properties from a class instance to a JSON object.
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*
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* @module @stdlib/plot/vega/base/to-json
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*
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* @example
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* var toJSON = require( '@stdlib/plot/vega/base/to-json' );
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*
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* // TODO: example
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*/
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// MODULES //
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var main = require( './main.js' );
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// EXPORTS //
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module.exports = main;

‎lib/node_modules/@stdlib/plot/vega/base/to-json/lib/main.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 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 isFunction = require( '@stdlib/assert/is-function' );
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var isArray = require( '@stdlib/assert/is-array' );
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var isObject = require( '@stdlib/assert/is-object' );
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var copy = require( '@stdlib/utils/copy' );
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// MAIN //
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/**
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* Serializes a list of private instance properties from a class instance to a JSON object.
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*
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* @param {Object} obj - input instance
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* @param {Array<string>} properties - properties to serialize
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* @returns {Object} JSON object
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*/
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function toJSON( obj, properties ) {
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var out;
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var tmp;
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var v;
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var o;
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var k;
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var i;
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var j;
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out = {};
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for ( i = 0; i < properties.length; i++ ) {
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k = properties[ i ];
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v = obj[ '_'+k ];
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if ( v === void 0 ) {
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continue;
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}
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if ( isArray( v ) ) {
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tmp = [];
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for ( j = 0; j < v.length; j++ ) {
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o = v[ j ];
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if ( o && isFunction( o.toJSON ) ) {
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tmp.push( o.toJSON() );
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} else if ( isObject( o ) ) {
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tmp.push( copy( o ) );
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} else {
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tmp.push( o );
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}
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}
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out[ k ] = tmp;
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} else if ( v && isFunction( v.toJSON ) ) {
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out[ k ] = v.toJSON();
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} else if ( isObject( v ) ) {
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out[ k ] = copy( v );
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} else {
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out[ k ] = v;
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}
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}
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return out;
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}
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// EXPORTS //
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module.exports = toJSON;

‎lib/node_modules/@stdlib/plot/vega/base/to-json/package.json‎

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{
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"name": "@stdlib/plot/vega/base/to-json",
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"version": "0.0.0",
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"description": "Serialize a list of private instance properties from a class instance to a JSON object.",
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"license": "Apache-2.0",
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"author": {
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"name": "The Stdlib Authors",
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"url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
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},
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"contributors": [
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{
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"name": "The Stdlib Authors",
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"url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
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}
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],
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"main": "./lib",
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"directories": {
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"lib": "./lib"
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},
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"types": "./docs/types",
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"scripts": {},
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"homepage": "https://github.com/stdlib-js/stdlib",
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"repository": {
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"type": "git",
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"url": "git://github.com/stdlib-js/stdlib.git"
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},
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"bugs": {
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"url": "https://github.com/stdlib-js/stdlib/issues"
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},
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"dependencies": {},
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"devDependencies": {},
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"engines": {
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"node": ">=0.10.0",
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"npm": ">2.7.0"
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},
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"os": [
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"aix",
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"darwin",
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"freebsd",
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"linux",
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"macos",
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"openbsd",
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"sunos",
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"win32",
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"windows"
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],
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"keywords": [
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"stdlib",
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"plot",
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"vega",
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"json",
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"utilities",
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"utility",
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"utils",
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"util"
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],
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"__stdlib__": {}
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}

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