Answers for "javascript check if exists in dictionary"

javascript does key exist

var person={"name":"Billy","age":20}
person.hasOwnProperty("name"); // true
person.hasOwnProperty("sex"); // false

Posted by: Guest on July-22-2019

jquery if key exists in object

Use the in operator:

testArray = 'key1' in obj;
Sidenote: What you got there, is actually no jQuery object, but just a plain JavaScript Object

Posted by: Guest on March-20-2021

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