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node_modules/object-component/index.js
83 строки
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EvgeniyBudaev
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17 фев 2020, 09:02
17 фев 2020, 09:02
bb6f06f
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/** * HOP ref. */ var has = Object.prototype.hasOwnProperty; /** * Return own keys in `obj`. * * @param {Object} obj * @return {Array} * @api public */ exports.keys = Object.keys || function(obj){ var keys = []; for (var key in obj) { if (has.call(obj, key)) { keys.push(key); } } return keys; }; /** * Return own values in `obj`. * * @param {Object} obj * @return {Array} * @api public */ exports.values = function(obj){ var vals = []; for (var key in obj) { if (has.call(obj, key)) { vals.push(obj[key]); } } return vals; }; /** * Merge `b` into `a`. * * @param {Object} a * @param {Object} b * @return {Object} a * @api public */ exports.merge = function(a, b){ for (var key in b) { if (has.call(b, key)) { a[key] = b[key]; } } return a; }; /** * Return length of `obj`. * * @param {Object} obj * @return {Number} * @api public */ exports.length = function(obj){ return exports.keys(obj).length; }; /** * Check if `obj` is empty. * * @param {Object} obj * @return {Boolean} * @api public */ exports.isEmpty = function(obj){ return 0 == exports.length(obj); };