.config/coc/extensions/node_modules/coc-prettier/node_modules/core-js/internals/to-primitive.js

   1 var global = require('../internals/global');
   2 var call = require('../internals/function-call');
   3 var isObject = require('../internals/is-object');
   4 var isSymbol = require('../internals/is-symbol');
   5 var getMethod = require('../internals/get-method');
   6 var ordinaryToPrimitive = require('../internals/ordinary-to-primitive');
   7 var wellKnownSymbol = require('../internals/well-known-symbol');
   8
   9 var TypeError = global.TypeError;
  10 var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
  11
  12 // `ToPrimitive` abstract operation
  13 // https://tc39.es/ecma262/#sec-toprimitive
  14 module.exports = function (input, pref) {
  15   if (!isObject(input) || isSymbol(input)) return input;
  16   var exoticToPrim = getMethod(input, TO_PRIMITIVE);
  17   var result;
  18   if (exoticToPrim) {
  19     if (pref === undefined) pref = 'default';
  20     result = call(exoticToPrim, input, pref);
  21     if (!isObject(result) || isSymbol(result)) return result;
  22     throw TypeError("Can't convert object to primitive value");
  23   }
  24   if (pref === undefined) pref = 'number';
  25   return ordinaryToPrimitive(input, pref);
  26 };