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- Global object builtin properties
- delete NaN : false
- NaN : NaN
- delete Infinity : false
- Infinity : Infinity
- delete undefined : false
- undefined : undefined
- NaN= "hello"; : hello
- NaN : NaN
- Infinity= "hello"; : hello
- Infinity : Infinity
- undefined= "hello"; : hello
- undefined : undefined
- Math Object builtin properties
- Math.PI = overwrite : hello
- Math.PI : 3.141592653589793
- Math.E = overwrite : hello
- Math.E : 2.718281828459045
- Math.LN10 = overwrite : hello
- Math.LN10 : 2.302585092994046
- Math.LN2 = overwrite : hello
- Math.LN2 : 0.6931471805599453
- Math.LOG2E = overwrite : hello
- Math.LOG2E : 1.4426950408889633
- Math.LOG10E = overwrite : hello
- Math.LOG10E : 0.4342944819032518
- Math.SQRT1_2 = overwrite : hello
- Math.SQRT1_2 : 0.7071067811865476
- Math.SQRT2 = overwrite : hello
- Math.SQRT2 : 1.4142135623730951
- delete Math.PI : false
- Math.PI : 3.141592653589793
- delete Math.E : false
- Math.E : 2.718281828459045
- delete Math.LN10 : false
- Math.LN10 : 2.302585092994046
- delete Math.LN2 : false
- Math.LN2 : 0.6931471805599453
- delete Math.LOG2E : false
- Math.LOG2E : 1.4426950408889633
- delete Math.LOG10E : false
- Math.LOG10E : 0.4342944819032518
- delete Math.SQRT1_2 : false
- Math.SQRT1_2 : 0.7071067811865476
- delete Math.SQRT2 : false
- Math.SQRT2 : 1.4142135623730951
- Number Object builtin properties
- Number.MAX_VALUE = overwrite : hello
- Number.MAX_VALUE : 1.7976931348623157e+308
- Number.MIN_VALUE = overwrite : hello
- Number.MIN_VALUE : 5e-324
- Number.NaN = overwrite : hello
- Number.NaN : NaN
- Number.NEGATIVE_INFINITY = overwrite : hello
- Number.NEGATIVE_INFINITY : -Infinity
- Number.POSITIVE_INFINITY = overwrite : hello
- Number.POSITIVE_INFINITY : Infinity
- delete Number.MAX_VALUE : false
- Number.MAX_VALUE : 1.7976931348623157e+308
- delete Number.MIN_VALUE : false
- Number.MIN_VALUE : 5e-324
- delete Number.NaN : false
- Number.NaN : NaN
- delete Number.NEGATIVE_INFINITY : false
- Number.NEGATIVE_INFINITY : -Infinity
- delete Number.POSITIVE_INFINITY : false
- Number.POSITIVE_INFINITY : Infinity
- delete Number.undefined : true
- Number.undefined : undefined
- delete Number.undefined : true
- Number.undefined : undefined
- delete Number.undefined : true
- Number.undefined : undefined
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