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- # set-blocking
- [](https://travis-ci.org/yargs/set-blocking)
- [](https://www.npmjs.com/package/set-blocking)
- [](https://coveralls.io/r/yargs/set-blocking?branch=master)
- [](https://github.com/conventional-changelog/standard-version)
- set blocking `stdio` and `stderr` ensuring that terminal output does not truncate.
- ```js
- const setBlocking = require('set-blocking')
- setBlocking(true)
- console.log(someLargeStringToOutput)
- ```
- ## Historical Context/Word of Warning
- This 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
- newer versions of Node.js (`0.12+`), truncating terminal output.
- You should be mindful of the side-effects caused by using `set-blocking`:
- * if your module sets blocking to `true`, it will effect other modules
- consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call
- `setBlocking(true)` once we already know we are about to call `process.exit(code)`.
- * this patch will not apply to subprocesses spawned with `isTTY = true`, this is
- the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).
- ## License
- ISC
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