25 lines
585 B
Plaintext
25 lines
585 B
Plaintext
js> load('testsrc/doctests/util.js');
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js> Object.seal;
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function seal() { [native code for Object.seal, arity=1] }
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js> [undefined, null, true, 1, 'hello'].forEach(function(value) {
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> expectTypeError(function() { Object.seal(value) })
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> })
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js> expectTypeError(function() { Object.seal() })
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js> var x = {}
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js> var y = Object.seal(x)
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js> x === y
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true
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js> var obj = Object.defineProperty({}, 'a', {configurable:true})
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js> var _ = Object.seal(obj)
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js> Object.getOwnPropertyDescriptor(obj, 'a').configurable
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false
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js> Object.isExtensible(obj)
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false
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js> Object.isSealed(obj)
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true
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