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If the previous nonblank line has no indent points beyond the column point starts at, `tab-to-tab-stop' is done instead. Just change the value of indent-line-function to the insert-tab function and configure tab insertion as 4 spaces.
js-indent-level can be used in the default javascript-mode, which is included by default starting in emacs 23.2.
(setq js-indent-level 2)
should do what you're looking for. If you're using an older version of emacs, you may be in java-mode. I think this mode responds to c-basic-offset, however I may be wrong.
I wish someone had told me about Custom a lot sooner! Perhaps this will help another mere mortal like me ;)
Invoke Custom:
M-x customize
Then, choose "Programming," and then "Languages," and then select a language/mode to customize. Edit the options as you see fit. When done, choose either "Save for current session" or "Save for future sessions."
If you're using js2-mode (which is more powerful IMHO), then the command is:
(setq-default js2-basic-offset 2)
Source.
You might also want to set emacs to use spaces instead of tabs
(setq-default indent-tabs-mode nil)
You can also use
M-x customize-variable
and type
js-indent-level
(js- [TAB] shows a list of options). Then change the Js Indent Level as wanted and click [State:] and save.
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