In JavaScript, is there an easier way to check if a property of a property exists?

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I find this very convenient:

var myVal = (myVal=appData) && (myVal=myVal.foo) && (myVal=myVal.bar) && myVal.settings;

If a property exists, the next part of the sequence will be attempted.

When the expression before && evaluates to false, the next part of the expression will not be checked. If either of myVal.appData.foo.bar.settings is not defined, the value of myVal (undefined( will evaluate to false.

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