# Use javascript variable in Phoenix EEx

**URL:** <https://forum.elixirforum.com/t/use-javascript-variable-in-phoenix-eex/15147>\
**Category:** Questions\
**Tags:** phoenix, eex, javascript\
**Created:** [July 14, 2018, 4:47pm UTC](https://forum.elixirforum.com/t/use-javascript-variable-in-phoenix-eex/15147 "2018-07-14T16:47:21Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![pedromvieira](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/pedromvieira/32/5948_2.png) [@pedromvieira](https://forum.elixirforum.com/u/pedromvieira)\
**Post date:** [July 15, 2018, 11:54am UTC](https://forum.elixirforum.com/t/use-javascript-variable-in-phoenix-eex/15147/5 "2018-07-15T11:54:03Z")

</div>

You can write a cookie and retrieve it via conn.

# write

```
document.cookie = 'time_from_utc=' + time_from_utc + ';path=/'

```

# read

```
conn.cookies["time_from_utc"]

```

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