# \#defaults

**URL:** https://discourse.julialang.org/tag/defaults/1639.md

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## [Boolean open modes for \`open()\`](https://discourse.julialang.org/t/boolean-open-modes-for-open/117157)

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**Author:** [@ryofurue](https://discourse.julialang.org/u/ryofurue)\
**Replies:** 2\
**Last updated:** [July 18, 2024, 1:08am UTC](https://discourse.julialang.org/t/boolean-open-modes-for-open/117157 "2024-07-18T01:08:31Z")

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I’m trying to understand the keyword arguments write, truncate, . . . , of the open() function. I put a link to the documentation at the end of this message. Specifically, I want to know What it means if you specify w…