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One of my alerts is giving the following result:
[object Object] What does this mean exactly? (This was an alert of some jQuery object.)
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To answer your question, what this means is that you are alerting an instance of an object. For instance, when alerting the object, toString() is called on the object, and the default implementation returns [object Object]. If you want to inspect the object, you should either console. log it, JSON.
object Object] is a string representation of an object. You may see this text if you use alert() to print an object to the screen, for instance. You can view the contents of an object using console.15-Dec-2020.
While working with state variables in React, you might run into an error stating Tried to merge an object, instead got [object Object] . This usually happens when you are directly modifying your state and altering its original structure incorrectly.
It means you are alerting an instance of an object. When alerting the object, toString() is called on the object, and the default implementation returns [object Object].
var objA = {}; var objB = new Object; var objC = {}; objC.toString = function () { return "objC" }; alert(objA); // [object Object] alert(objB); // [object Object] alert(objC); // objC If you want to inspect the object, you should either console.log it, JSON.stringify() it, or enumerate over it's properties and inspect them individually using for in.
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