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# From Ruby Variables To JavaScript Variables

I sometimes find myself writing so much Ruby that as soon as I am back in a JavaScript file, my code starts looking like this:

```javascript
const my_javascript_var = 123;
```

It would be easy enough to hit `caw` to the delete the entire word and then retype it as camel case. I happen to have the [Abolish.vim](https://github.com/tpope/vim-abolish) plugin installed, so there is an even quicker way.

If I hit `crc` over the variable, it will be *coerced* to camel case.

```javascript
const myJavascriptVar = 123;
```

If I hit `crs` then it will be *coerced* back to snake case. Hit `crc` one more time and I can get back to writing some JavaScript.

See `:h abolish-coercion` for more details.