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cdtinney/nested_keys.js

Created February 22, 2017 18:36
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Concise pattern for checking existence of nested keys within objects. Credit to http://web.archive.org/web/20161108071447/http://blog.osteele.com/posts/2007/12/cheap-monads/
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nested_keys.js
var level3 = (((test || {}).level1 || {}).level2 || {}).level3;
alert( level3 );
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