# Elm target Javascript version

**URL:** <https://discourse.elm-lang.org/t/elm-target-javascript-version/5158>\
**Category:** Learn\
**Created:** [February 11, 2020, 2:49am UTC](https://discourse.elm-lang.org/t/elm-target-javascript-version/5158 "2020-02-11T02:49:21Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dweremeichik](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.elm-lang.org/dweremeichik/32/2956_2.png) [@dweremeichik](https://discourse.elm-lang.org/u/dweremeichik)\
**Post date:** [February 11, 2020, 2:49am UTC](https://discourse.elm-lang.org/t/elm-target-javascript-version/5158/1 "2020-02-11T02:49:21Z")

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Does Elm target a specific version of Javascript? I’m beginning my first Elm project, and I’m trying to figure out what browsers might be officially supported/targeted. I’ve read through the official guide and don’t remember seeing anything there, or in the readme for the compiler.

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**Author:** ![pdamoc](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.elm-lang.org/pdamoc/32/36_2.png) [@pdamoc](https://discourse.elm-lang.org/u/pdamoc)\
**Post date:** [February 11, 2020, 5:15am UTC](https://discourse.elm-lang.org/t/elm-target-javascript-version/5158/2 "2020-02-11T05:15:28Z")

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> [@dweremeichik](#):
>
> I’m beginning my first Elm project, and I’m trying to figure out what browsers might be officially supported/targeted.

You should be safe with IE11 and above.

You can find more info [here](https://discourse.elm-lang.org/t/elm-support-for-older-browsers-ie-9-10/744) about what you might need to do if you want to support even older browsers.

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**Author:** ![dweremeichik](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.elm-lang.org/dweremeichik/32/2956_2.png) [@dweremeichik](https://discourse.elm-lang.org/u/dweremeichik)\
**Post date:** [February 11, 2020, 6:55am UTC](https://discourse.elm-lang.org/t/elm-target-javascript-version/5158/3 "2020-02-11T06:55:34Z")

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That link has a lot of good information in it, thanks! It also made me think more about reasons to/not support IE at all.

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**Author:** ![pdamoc](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.elm-lang.org/pdamoc/32/36_2.png) [@pdamoc](https://discourse.elm-lang.org/u/pdamoc)\
**Post date:** [February 11, 2020, 7:28am UTC](https://discourse.elm-lang.org/t/elm-target-javascript-version/5158/4 "2020-02-11T07:28:22Z")

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> [@dweremeichik](#):
>
> It also made me think more about reasons to/not support IE at all.

I love CSS custom properties and there is no way (to my knowledge) to get support for that in IE11.

If you can leave IE11 behind, leave it.

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**Author:** ![system](https://canada1.discourse-cdn.com/flex035/uploads/elm_lang/original/1X/50a05e53677a2c3b47776d7abd0f113eb50193a1.png) [@system](https://discourse.elm-lang.org/u/system)\
**Post date:** [February 21, 2020, 7:28am UTC](https://discourse.elm-lang.org/t/elm-target-javascript-version/5158/5 "2020-02-21T07:28:23Z")

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