The object whose class is Object seems quite different from the usual class instance object, because it acts like an associative array or list: it can be created by simple object literals (a list …

Dec 15, 2011 · After all, the typeof operator will tell you if something is an object to JavaScript, but JavaScript's definition of an object is too broad for most real-world scenarios (e.g. typeof null …

The best way to find out the REAL type of an object (including BOTH the native Object or DataType name (such as String, Date, Number, ..etc) AND the REAL type of an object (even …

This version is more like a poly-fil so that you can use it in any environment. The result of this function is a valid Javascript object declaration. I wouldn't doubt if something like this was …

Mar 25, 2009 · Object.keys(obj).length is 10 times slower for empty objects; JSON.stringify(obj).length is always the slowest (not suprising) …

Jan 17, 2012 · As @Matt already explained the reason for [object object], I would like to elaborate on how to inspect the object's value. There are three options that come to my mind: …

@AlanH spread operator is like a shorthand of Object.assign and have lower precedence than the && operator. It ignore value without property (boolean, null, undefined, number), and add all …

Jan 17, 2013 · For iterating on keys of Arrays, Strings, or Objects, use for .. in:. for (let key in yourobject) { console.log(key, yourobject[key]); }

May 31, 2019 · This is a good solution. But in a javascript Object you can't have a kebab-case key, unless it's in quotes. So if someone is looking to display an Object in a js syntax …

Oct 16, 2008 · The term you have used in your question title, Remove a property from a JavaScript object, can be interpreted in some different ways. The one is to remove it for whole …