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30secondsofcode
2019-09-18 20:39:52 +00:00
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commit 68b798e22f
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snippet_data/snippetList.json
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@ -40,7 +40,7 @@
"type": "snippetListing",
"title": "Carousel",
"attributes": {
"text": "Renders a carousel component.\n\n- Use the `React.setState()` hook to create the `active` state variable and give it a value of `0` (index of the first item).\n- Use an object, `style`, to hold the styles for the individual components.\n- Use the `React.setEffect()` hook to update the value of `active` to the index of the next item, using `setTimeout`.\n- Destructure `props`, compute if visibility style should be set to `visible` or not for each carousel item while mapping over and applying the combined style to the carousel item component accordingly.\n- Render the carousel items using `React.cloneElement()` and pass down rest `props` along with the computed styles.\n\n",
"text": "Renders a carousel component.\n\n- Use the `React.setState()` hook to create the `active` state variable and give it a value of `0` (index of the first item).\n- Use an object, `style`, to hold the styles for the individual components.\n- Use the `React.useEffect()` hook to update the value of `active` to the index of the next item, using `setTimeout`.\n- Destructure `props`, compute if visibility style should be set to `visible` or not for each carousel item while mapping over and applying the combined style to the carousel item component accordingly.\n- Render the carousel items using `React.cloneElement()` and pass down rest `props` along with the computed styles.\n\n",
"tags": [
"visual",
"children",
@ -50,7 +50,7 @@
]
},
"meta": {
"hash": "0810223a6248d03b4adb32586b919c28979fe06bbff209fe8e18d890532a094a"
"hash": "4e224ce57a85a9061c065603496ae2a80db43d2ab7908d1c08c7dcbe5779a2d6"
}
},
{

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snippet_data/snippets.json
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@ -53,10 +53,10 @@
"type": "snippet",
"attributes": {
"fileName": "Carousel.md",
"text": "Renders a carousel component.\n\n- Use the `React.setState()` hook to create the `active` state variable and give it a value of `0` (index of the first item).\n- Use an object, `style`, to hold the styles for the individual components.\n- Use the `React.setEffect()` hook to update the value of `active` to the index of the next item, using `setTimeout`.\n- Destructure `props`, compute if visibility style should be set to `visible` or not for each carousel item while mapping over and applying the combined style to the carousel item component accordingly.\n- Render the carousel items using `React.cloneElement()` and pass down rest `props` along with the computed styles.\n\n",
"text": "Renders a carousel component.\n\n- Use the `React.setState()` hook to create the `active` state variable and give it a value of `0` (index of the first item).\n- Use an object, `style`, to hold the styles for the individual components.\n- Use the `React.useEffect()` hook to update the value of `active` to the index of the next item, using `setTimeout`.\n- Destructure `props`, compute if visibility style should be set to `visible` or not for each carousel item while mapping over and applying the combined style to the carousel item component accordingly.\n- Render the carousel items using `React.cloneElement()` and pass down rest `props` along with the computed styles.\n\n",
"codeBlocks": {
"style": "",
"code": "function Carousel(props) {\n const [active, setActive] = React.useState(0);\n let scrollInterval = null;\n const style = {\n carousel: {\n position: 'relative'\n },\n carouselItem: {\n position: 'absolute',\n visibility: 'hidden'\n },\n visible: {\n visibility: 'visible'\n }\n };\n React.useEffect(() => {\n scrollInterval = setTimeout(() => {\n const { carouselItems } = props;\n setActive((active + 1) % carouselItems.length);\n }, 2000);\n });\n const { carouselItems, ...rest } = props;\n return (\n <div style={style.carousel}>\n {carouselItems.map((item, index) => {\n const activeStyle = active === index ? style.visible : {};\n return React.cloneElement(item, {\n ...rest,\n style: {\n ...style.carouselItem,\n ...activeStyle\n }\n });\n })}\n </div>\n );\n}",
"code": "function Carousel(props) {\n const [active, setActive] = React.useState(0);\n let scrollInterval = null;\n const style = {\n carousel: {\n position: 'relative'\n },\n carouselItem: {\n position: 'absolute',\n visibility: 'hidden'\n },\n visible: {\n visibility: 'visible'\n }\n };\n React.useEffect(() => {\n scrollInterval = setTimeout(() => {\n const { carouselItems } = props;\n setActive((active + 1) % carouselItems.length);\n }, 2000);\n return () => clearTimeout(scrollInterval);\n });\n const { carouselItems, ...rest } = props;\n return (\n <div style={style.carousel}>\n {carouselItems.map((item, index) => {\n const activeStyle = active === index ? style.visible : {};\n return React.cloneElement(item, {\n ...rest,\n style: {\n ...style.carouselItem,\n ...activeStyle\n }\n });\n })}\n </div>\n );\n}",
"example": "ReactDOM.render(\n <Carousel\n carouselItems={[\n <div>carousel item 1</div>,\n <div>carousel item 2</div>,\n <div>carousel item 3</div>\n ]}\n />,\n document.getElementById('root')\n);"
},
"tags": [
@ -68,7 +68,7 @@
]
},
"meta": {
"hash": "0810223a6248d03b4adb32586b919c28979fe06bbff209fe8e18d890532a094a"
"hash": "4e224ce57a85a9061c065603496ae2a80db43d2ab7908d1c08c7dcbe5779a2d6"
}
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{