Based on this question: https://stackoverflow.com/questions/4250913/repl-on-console-emacs, you can use `M-x ielm` (inferior emacs lisp mode).

There is a (work in progress) REPL for Emacs for use from the command line. It currently supports basic command line editing and history.

The code is [hosted on Github](https://github.com/tetracat/emacsrepl).

There is [this project](https://gitlab.com/jpellegrini/eltr) on Gitlab. The REPL can run on a termninal or on Emacs&#39; minibuffer. Even if you run it in &quot;no-window-system&quot; mode (with `-nw`). 

I have been using Visual Studio for a while and found that when I open visual studio and open the project all the files that were open last time remain open.

This causes my Visual Studio to freeze or crash on startup.

I am using a lot of plugins in my installation and wonder if there is a way to prevent this from happening.

Visual Studio freezes or hangs on startup

I&#39;m developing a PhoneGap application and I&#39;d like to be able to debug it in Chrome rather than on the phone.  However, I do the initialization of my code in an onDeviceReady() function that is triggered when PhoneGap fires the &quot;deviceready&quot; event.  Since Chrome doesn&#39;t fire this event, my code isn&#39;t ever initialized.

Here&#39;s a stripped down version of my code:

    var dashboard = {};
    
    $(document).ready(function() {
        document.addEventListener(&quot;deviceready&quot;, dashboard.onDeviceReady, false);
    }); 
    
    dashboard.onDeviceReady = function() {
        alert(&quot;hello!&quot;); //this is never fired in Chrome
    };

I&#39;ve tried using the [StopGap][1] code, which basically just does the following:

    var e = document.createEvent(&#39;Events&#39;); 
    e.initEvent(&quot;deviceready&quot;);
    document.dispatchEvent(e);

But when I run that code in the Chrome javascript console, the &quot;hello&quot; alert still doesn&#39;t trigger.  What am I doing wrong?  Or does chrome just not support firing &quot;custom&quot; events like deviceready?


  [1]: https://github.com/alunny/stopgap &quot;StopGap&quot;

How to fire deviceready event in Chrome browser (trying to debug phonegap project)

What are some REPLs for Emacs Lisp?

Is there only one that is within Emacs?

Are there some that run inside terminal outside Emacs?


REPL for Emacs Lisp

What are some REPLs for Emacs Lisp?
Is there only one that is within Emacs?
Are there some that run inside terminal outside Emacs?

In an Emacs Org-mode table, when you have a column full of integers I know you can do `C-c +` followed by `C-y` to paste the sum of the values in the column. I want to know the formula to place in the last row to *always* sum the whole column.

I&#39;ve tried everything. The [docs][1] show you how to sum two columns together but not one.

  [1]: http://www.gnu.org/software/emacs/manual/html_mono/org.html#Tables

Permanently summing a column in an Org-mode table

Is there a builtin command to clear shell while using shell in emacs?

If not, is there an elisp function to achieve the same?

Command to clear shell while using emacs shell

I&#39;ve been updating my emacs config with the use of Rsense to allow for an autocomplete drop down box to appear whilst typing code.  This works well in most files except I&#39;ve found it doesn&#39;t allow me to select an answer from the table when I&#39;m editing some code in my ruby on rails project.

Here is my setup:
https://github.com/map7/simple_emacs

I&#39;m using this under Ubuntu 10.04.

For simple ruby script files it works great. I can open up a new file and type.

&lt;!-- language: lang-rb --&gt;

    &quot;test&quot;.up...

Just as I type the &#39;p&#39; character in up a list of options appear and I can go up and down the list with arrow keys and select one (eg: upcase) with the enter key.

What doesn&#39;t work is when I do the exact same test but within a rails project&#39;s base directory.

**Update:**

Found that the problem is with (require &#39;rails), so it&#39;s something in the emacs-rails plugin that the autocomplete doesn&#39;t like.

**Update:** 

It&#39;s within emacs-rails -&gt; rails-project.el. If I comment this macro out then autocomplete works, otherwise it doesn&#39;t:

&lt;!-- language: lang-rb --&gt;

    (defmacro* rails-project:with-root ((root) &amp;body body)
      &quot;If you use `rails-project:root&#39; or functions related on it
    several times in a block of code, you can optimize your code by
    using this macro. Also, blocks of code will be executed only if
    rails-root exist.
     (rails-project:with-root (root)
        (foo root)
        (bar (rails-core:file \&quot;some/path\&quot;)))
     &quot;
     `(let ((,root (rails-project:root)))
        (when ,root
          (flet ((rails-project:root () ,root))
            ,@body))))


Can someone explain why this breaks autocomplete?

Emacs Ruby autocomplete almost working

I&#39;ve been using Vim as my primary editor for years and tried Emacs several times during that time. Then I discovered [Evil](https://gitorious.org/evil/pages/Home) and decided that it meets my demand for speedy movement well enough that I can finally move on to Emacs.

So, to all you Evil users, how do you integrate it with normal Emacs functions? Have you encountered any conflicts between this mode and others? What&#39;s your sharing-worthy experiences/tips on this topic?

Evil Mode best practice?

I&#39;m using emacs 24 and [solarized][1] color theme.

When Emacs starts up, it prompt me with &quot;Loading a theme can run Lisp code, really load?&quot;.

When I answer with &quot;yes&quot;, it continues to &quot;Treat this theme as safe in future sessions?&quot;.

If I say &quot;y&quot;, the theme gets loaded, and 

    (custom-set-variables
        (custome-safe-themes (quote (&quot;...&quot; default))))

gets added to ~/.emacs automatically.

However, those questions come back every time I open Emacs!

What&#39;s the proper way to turn those off?

  [1]: https://github.com/sellout/emacs-color-theme-solarized

How to treat my custom emacs theme as a &quot;safe theme&quot;?

I have a question about Emacs Lisp. What is the difference between **setq** and **setq-default**?

Tutorials say **setq** takes effect in the *local buffer* while **setq-default** affects all buffers.  
 
For example, if I wrote **(setq a-var a-vars-value)** in **init.el**, I found after starting Emacs and opening a new buffer, the **a-var** is also there and its value is **a-vars-value**. I thought it was not supposed to be there. It seems there is no difference between **setq** and **setq-default**.  

Is there something wrong with my understanding?

For example:  

1. I wrote **(setq hello 123)** in the **init.el** file, and I run **emacs abuffer** in the shell, then I input **&quot;hello C-x C-e&quot;**, it shows &quot;123&quot;. The same happens when I run this in all new buffers.  

2. I wrote **(setq tab-width 4)** in the **init.el** file. When I run **tab-width C-x C-e**, it shows &quot;8&quot; (Current mode is &#39;Text&#39;). However, when I use **(setq-default tab-width 4)**, it show &quot;4&quot;. I can&#39;t explain this phenomenon.

The difference between setq and setq-default in Emacs Lisp

What is the preferred way of reloading functions defined in a Clojure file without having to restart the REPL. Right now, in order to use the updated file I have to:

- edit `src/foo/bar.clj`
- close the REPL
- open the REPL
- `(load-file &quot;src/foo/bar.clj&quot;)`
- `(use &#39;foo.bar)`

In addition, `(use &#39;foo.bar :reload-all)` does not result in required effect, which is evaluating the modified bodies of functions and returning new values, instead of behaving as the source haven&#39;t changed at all.

**Documentation:**

 - [load-file][1]
 - [use][2]

  [1]: https://clojuredocs.org/clojure.core/load-file
  [2]: https://clojuredocs.org/clojure.core/use

How to reload a clojure file in REPL

I have a script `foo.js` that contains some functions I want to play with in the REPL.

Is there a way to have node execute my script and then jump into a REPL with all the declared globals, like I can with `python -i foo.py` or `ghci foo.hs`?

How do I load my script into the node.js REPL?

The interactive environment is VERY helpful for a programmer. However, it seems Go does not provide it.  Is my understanding correct?

Does Go provide REPL?

When I program in Javascript, I find it *extremely* convenient to be able to use the debugger to halt program execution at any point and to be able to runs commands and inspect variables from there.

Now, back in Haskell, is there a way to run arbitrary functions in the interactive GHCI REPL or am I limited to things declared at the toplevel?

What is the &quot;standard&quot; approach to working and debugging inner functions and values?

What is the best way to test and interact with inner functions defined inside a toplevel function?

When I typed multiline in coffeescript interactive mode, an error occrured.

For example, I want to try the following code:

    kids =
      brother:
        name: &quot;Max&quot;
        age:  11
      sister:
        name: &quot;Ida&quot;
        age:  9

This Error was displayed:

    coffee&gt; kids = 
    Error: In repl, Parse error on line 1: Unexpected &#39;TERMINATOR&#39;
      at Object.parseError (/usr/lib/coffeescript/parser.js:463:11)
      at Object.parse (/usr/lib/coffeescript/parser.js:533:22)
      at /usr/lib/coffeescript/coffee-script.js:26:22
      at Object.eval (/usr/lib/coffeescript/coffee-script.js:64:17)
      at Interface.&lt;anonymous&gt; (/usr/lib/coffeescript/repl.js:18:26)
      at Interface.emit (events:27:15)
      at Interface._ttyWrite (readline:309:12)
      at Interface.write (readline:147:30)
      at Stream.&lt;anonymous&gt; (/usr/lib/coffeescript/repl.js:35:17)
      at Stream.emit (events:27:15)


I tried to use &#39;\&#39; as a newline,but the same error was displayed.

    coffee&gt; kids = \
    Error: In repl, Parse error on line 1: Unexpected &#39;\&#39;
      at Object.parseError (/usr/lib/coffeescript/parser.js:463:11)
      at Object.parse (/usr/lib/coffeescript/parser.js:533:22)
      at /usr/lib/coffeescript/coffee-script.js:26:22
      at Object.eval (/usr/lib/coffeescript/coffee-script.js:64:17)
      at Interface.&lt;anonymous&gt; (/usr/lib/coffeescript/repl.js:18:26)
      at Interface.emit (events:27:15)
      at Interface._ttyWrite (readline:309:12)
      at Interface.write (readline:147:30)
      at Stream.&lt;anonymous&gt; (/usr/lib/coffeescript/repl.js:35:17)
      at Stream.emit (events:27:15)


I can&#39;t use multiline, so I can&#39;t use indentation.

What should I do?

My environment is the following:

 - OS: Ubuntu 10.04 lucid
 
 - coffeescript version 1.0.0
   I installed coffeescript with PPA and apt-get command.

see this url: https://launchpad.net/~gezakovacs/+archive/coffeescript



Content Type	Original Author	Original Content on Stackoverflow
Question	Tim	View Question on Stackoverflow
Solution 1 - Emacs	Tikhon Jelvis	View Answer on Stackoverflow
Solution 2 - Emacs	ack	View Answer on Stackoverflow
Solution 3 - Emacs	jcp	View Answer on Stackoverflow

REPL for Emacs Lisp

Emacs Problem Overview

Emacs Solutions

Solution 1 - Emacs

Solution 2 - Emacs

Solution 3 - Emacs

How to fire deviceready event in Chrome browser (trying to debug phonegap project)

Visual Studio freezes or hangs on startup

Attributions