CODEWITHSUNDEEP
typescript
trusktr
trusktr

Reputation: 45464

How does `import = ` format work without `require()`?

I see something like

import foo = Bar.baz.lorem;

in some source code and it does not have a require() call. Is this an old form if import? I don't see any examples in the docs.

Upvotes: 0

Views: 37

Answers (1)

artem
artem

Reputation: 51609

This is TypeScript syntax for importing from namespaces, not modules. There was a time when namespaces were called "internal modules", and modules were "external modules". So import from namespace can be used to introduce an alias to some entity defined in that namespace:

namespace Bar {
    export namespace baz {
        export const lorem = 42;
    }
}

import foo = Bar.baz.lorem;

This import is compiled into simple var statement

var foo = Bar.baz.lorem;

and, except for its confusing name, has nothing to do with ES6 or CommonJS modules.

Upvotes: 2

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