How to check object property in Node.js

Here's the way...

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var my_obj = { name : "Hisoka", skills: "Bungejigum" }; if(my_obj.hasOwnProperty('status')) { console.log(" my object has status property"); } else { console.log(" status is NOT in there"); } if(my_obj.hasOwnProperty('skills')) { console.log(" my object has skills property"); } else { console.log(" skills is NOT in there"); } /** * Another way for checking property is using 'in'. * but BE CAREFUL! The in operator matches all object keys, * including those in the object's prototype chain. * So it's preferred to use hasOwnProperty */ console.log("\n"); if('status' in my_obj) { console.log(" status is in there"); } else { console.log(" status is NOT in there"); } if('skills' in my_obj) { console.log(" skills is in there"); } else { console.log(" skills is NOT in there"); }

Result :