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rename tutorial 'Checking slots' -> 'Checking for slot content'

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Conduitry 5 years ago
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commit be85397ca1
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site/content/tutorial/14-composition/04-optional-slots/text.md
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--- ---
title: Checking slots title: Checking for slot content
--- ---
In some cases, you may want to control parts of your component based on whether the parent passes in content for a certain slot. Perhaps you have a wrapper around that slot, and you don't want to render it if the slot is empty. Or perhaps you'd like to apply a class only if the slot is present. You can do this by checking the properties of the special `$$slots` variable. In some cases, you may want to control parts of your component based on whether the parent passes in content for a certain slot. Perhaps you have a wrapper around that slot, and you don't want to render it if the slot is empty. Or perhaps you'd like to apply a class only if the slot is present. You can do this by checking the properties of the special `$$slots` variable.

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