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What is the $$ (double dollar sign) used for in angular?

rated 0 times [ 18] [ 6] / answers: 1 / hits: 17850 / 11 Years ago, sat, october 12, 2013, 12:00:00

I'm taking a look at the angular 1.2 source code, and I'm just curious why some functions are prefixed with the two dollar signs. Is this some sort of convention?

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andreguym

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answered 11 Years ago damiondenzelc · Accepted Answer

Single $ for reserved, public identifiers

Double $$ for reserved private identifiers

To quote the docs:

$ Prefix Naming Convention

...

If you inspect a Scope, you may also notice some properties that begin with $$. These properties are considered private, and should not be accessed or modified.