The warning sign indicates the element is not available or deprecated.
The element starred as most useful.
It's to check the provided value to be the same as expected.
Type guard (constrain)
Constrains the parameter type to not let input unexpected value in the code editor.
It's a combination of both above, constrains the type of the parameter in the code editor, and checks its provided argument.
Creates a new instance of an object and returns it.
Returns defined value from a method of an object.
Defines a new value in an object and returns it.
Defines new or updates existing property in an object and returns an object.
Returns a value from an object.
Adds or updates an element with a specified key and a value to an object and returns an object.
Having the ability to know or understand things without any proof or evidence. E.g. some of the accessor names indicate directly its role.
Relating to the main or major parts of something rather than the details. E.g. some of the accessor names don't indicate the specific role in the object.
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