node-core-library.environmentmap

EnvironmentMap class

A map data structure that stores process environment variables. On Windows operating system, the variable names are case-insensitive.

Signature:

export declare class EnvironmentMap 

Constructor	Modifiers	Description
(constructor)(environmentObject)		Constructs a new instance of the `EnvironmentMap` class

Property	Modifiers	Type	Description
caseSensitive	`readonly`	boolean	Whether the environment variable names are case-sensitive.

Method	Modifiers	Description
clear()		Clears all entries, resulting in an empty map.
entries()		Returns the map entries.
get(name)		Returns the value of the specified variable, or `undefined` if the map does not contain that name.
mergeFrom(environmentMap)		Adds each entry from `environmentMap` to this map.
mergeFromObject(environmentObject)		Merges entries from a plain JavaScript object, such as would be used with the `process.env` API.
names()		Returns the map keys, which are environment variable names.
set(name, value)		Assigns the variable to the specified value. A previous value will be overwritten.
toObject()		Returns the keys as a plain JavaScript object similar to the object returned by the `process.env` API.
unset(name)		Removes the key from the map, if present.