repl: docs-only deprecation of magic mode · nodejs/node@3f27f02

command before writing to `output`. Defaults to [`util.inspect()`][].

* `completer` {Function} An optional function used for custom Tab auto

completion. See [`readline.InterfaceCompleter`][] for an example.

* `replMode` - A flag that specifies whether the default evaluator executes

all JavaScript commands in strict mode, default mode, or a hybrid mode

("magic" mode.) Acceptable values are:

* `replMode` {symbol} A flag that specifies whether the default evaluator

executes all JavaScript commands in strict mode or default (sloppy) mode.

Acceptable values are:

* `repl.REPL_MODE_SLOPPY` - evaluates expressions in sloppy mode.

* `repl.REPL_MODE_STRICT` - evaluates expressions in strict mode. This is

equivalent to prefacing every repl statement with `'use strict'`.

* `repl.REPL_MODE_MAGIC` - attempt to evaluates expressions in default

mode. If expressions fail to parse, re-try in strict mode.

* `repl.REPL_MODE_MAGIC` - This value is **deprecated**, since enhanced

spec compliance in V8 has rendered magic mode unnecessary. It is now

equivalent to `repl.REPL_MODE_SLOPPY` (documented above).

* `breakEvalOnSigint` - Stop evaluating the current piece of code when

`SIGINT` is received, i.e. `Ctrl+C` is pressed. This cannot be used together

with a custom `eval` function. Defaults to `false`.

- `NODE_REPL_HISTORY_SIZE` - Defaults to `1000`. Controls how many lines of

history will be persisted if history is available. Must be a positive number.

- `NODE_REPL_MODE` - May be any of `sloppy`, `strict`, or `magic`. Defaults

to `magic`, which will automatically run "strict mode only" statements in

strict mode.

to `sloppy`, which will allow non-strict mode code to be run. `magic` is

**deprecated** and treated as an alias of `sloppy`.

### Persistent History