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eslint-config-lemon

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'use strict'; var has = require('has'); var hasUnscopables = typeof Symbol === 'function' && typeof Symbol.unscopables === 'symbol'; var map = hasUnscopables && Array.prototype[Symbol.unscopables]; var $TypeError = TypeError; module.exports = function shimUnscopables(method) { if (typeof method !== 'string' || !method) { throw new $TypeError('method must be a non-empty string'); } if (!has(Array.prototype, method)) { throw new $TypeError('method must be on Array.prototype'); } if (hasUnscopables) { map[method] = true; } };