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Asked: 2026-05-16T18:54:47+00:00

return 0[‘toString’][‘length’]; why does it return 1

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return 0['toString']['length'];

why does it return 1

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1 Answer

  1. Editorial Team

    1000['toString'] gives you the function object Number.prototype.toString, and in JS, function objects have a property called length which returns the number of arguments the function takes. In this case is 1 because Number.prototype.toString receives a radix argument.

    alert(Number.prototype.toString.length) // 1

    References:

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