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Original file line number	Diff line number	Diff line change
@@ -149,7 +149,7 @@ The inner Lexical Environment has a reference to the `outer` one.
`149`	`149`
`150`	`150`	`When the code wants to access a variable -- the inner Lexical Environment is searched first, then the outer one, then the more outer one and so on until the global one.`
`151`	`151`
`152`		-If a variable is not found anywhere, that's an error in strict mode (without `use strict`, an assignment to an undefined variable, like `user = "John"` creates a new global variable `user`, that's for backwards compatibility).
	`152`	+If a variable is not found anywhere, that's an error in strict mode (without `use strict`, an assignment to a non-existing variable, like `user = "John"` creates a new global variable `user`, that's for backwards compatibility).
`153`	`153`
`154`	`154`	`Let's see how the search proceeds in our example:`
`155`	`155`

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