JavaScript Objects
- Object keys are always strings or symbols. If other data types are used as keys, they are automatically converted to strings.
- Object properties do not have a guaranteed order. While most modern JavaScript engines maintain the insertion order, it’s not specified by the language.
- Objects have a prototype chain and inherit properties and methods from their prototype objects.
Syntax:
new Object(value)
Object(value)
let object_name = {
key_name : value,
...
}
Map vs Object in JavaScript
In JavaScript, both map and object stores the key-value pairs but differ on some features and use cases.
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