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1 | var isObject = require('../internals/is-object');
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2 |
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3 | // `OrdinaryToPrimitive` abstract operation
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4 | // https://tc39.es/ecma262/#sec-ordinarytoprimitive
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5 | module.exports = function (input, pref) {
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6 | var fn, val;
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7 | if (pref === 'string' && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
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8 | if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input))) return val;
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9 | if (pref !== 'string' && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
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10 | throw TypeError("Can't convert object to primitive value");
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11 | };
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