environment

Ecology All external factors surrounding air, water, minerals, organisms, and certain organisms

Indoor or outdoor environment characterized by the presence of environmental art designed to be a specific place

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1. The locale, the environmental environment, the environment, the atmosphere, the environment, and the environment all refer to the composition of the atmosphere or background that constitutes a person or something. The environment may refer to the actual physical environment or social or cultural background factors, ie the crime environment and poverty. The environment encountered frequently by literary text refers to the intangible aspects of the environment, exciting artistic confusion and innovative environment. The atmosphere adapts to the surrounding atmosphere, their mood and tone. It is a relaxed and elegant atmosphere. The setting shows that the background is set by something: the perfect setting for emerald. The environment refers specifically to the physical aspect of the environment: waking up in an unfamiliar environment; in harmony with the surrounding environment

External environment where plants and animals live, often affect their development and behavior

Compute an operating system, program, or integrated suite that provides all the tools needed for a particular application word processing environment.

All biological and abiotic factors act on organisms, populations or ecological communities and affect their survival and development. Biological factors include the organism itself, their food and their interactions. Abiotic factors include sunlight, soil, air, water, climate and pollution. Biology responds to environmental changes through evolutionary adaptation of shape and behavior

In other words, each execution context has a lexical environment. This vocabulary environment contains variables and their associated values ​​and also includes references to those external environments. The vocabulary environment is either the global environment, the module environment (including the binding of the module's top declaration), or the function environment (the environment created by calling the function). Based on the above definition, we can see that the environment has access to its parent environment and that its parent environment can access its parent environment. This set of identifiers that each environment can access is called a "scope". Scopes can be nested in a hierarchical environmental chain called "scope chain".

Each function has an environment that gives the meaning of the variable in the function and an execution context that contains a reference to its parent environment. References to the parent environment make all variables in the parent scope available to all internal functions, whether internal functions are called outside the internal function, but are called within the scope of creating them . Calling function test returns 45. This is the return value of the calling function bar (since foo returns bar). Even after the function foo returns, bar can access the free variable y. This is because bar refers to y through the external environment, this is the environment of foo. Since foo's environment can access the global environment, Bar can also access the global variable x. This is called "range chain lookup".