Finding property in Object

This question already has an answer here:

How do I check if an object has a property in JavaScript? 22 answers

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Try hasOwnProperty

if(myObject.hasOwnProperty("1030")) {
    // Do code
}

It's a bit safer than checking if(myObject["1030"]) . This will return false, if the value is falsey ( false , undefined , null ), which may be desirable, but also does not strictly mean it does not exist.

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