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Configuration error
Configuration error
; | |
var KeyForSymbol = require('./KeyForSymbol'); | |
var Type = require('./Type'); | |
// https://262.ecma-international.org/14.0/#sec-canbeheldweakly | |
module.exports = function CanBeHeldWeakly(v) { | |
if (Type(v) === 'Object') { | |
return true; // step 1 | |
} | |
if (Type(v) === 'Symbol' && typeof KeyForSymbol(v) === 'undefined') { | |
return true; // step 2 | |
} | |
return false; // step 3 | |
}; | |