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1# set-blocking
2
3[![Build Status](https://travis-ci.org/yargs/set-blocking.svg)](https://travis-ci.org/yargs/set-blocking)
4[![NPM version](https://img.shields.io/npm/v/set-blocking.svg)](https://www.npmjs.com/package/set-blocking)
5[![Coverage Status](https://coveralls.io/repos/yargs/set-blocking/badge.svg?branch=)](https://coveralls.io/r/yargs/set-blocking?branch=master)
6[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
7
8set blocking `stdio` and `stderr` ensuring that terminal output does not truncate.
9
10```js
11const setBlocking = require('set-blocking')
12setBlocking(true)
13console.log(someLargeStringToOutput)
14```
15
16## Historical Context/Word of Warning
17
18This was created as a shim to address the bug discussed in [node #6456](https://github.com/nodejs/node/issues/6456). This bug crops up on
19newer versions of Node.js (`0.12+`), truncating terminal output.
20
21You should be mindful of the side-effects caused by using `set-blocking`:
22
23* if your module sets blocking to `true`, it will effect other modules
24 consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call
25 `setBlocking(true)` once we already know we are about to call `process.exit(code)`.
26* this patch will not apply to subprocesses spawned with `isTTY = true`, this is
27 the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).
28
29## License
30
31ISC
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