Created
July 5, 2019 09:48
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Simple script to retrieve values based on mediaQueries. Can be adapted to work with any comparison conditions. Returns the first match only.
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const WINDOW_HEIGHT = 1080; | |
const WINDOW_WIDTH = 1920; | |
/** | |
* Comparators check against WINDOW_WIDTH and WINDOW_HEIGHT vars, but can be any check you want. | |
* v refers to the value of the condition | |
**/ | |
const comparators = { | |
width: (v) => WINDOW_WIDTH === v, | |
height: (v) => WINDOW_HEIGHT === v, | |
minWidth: (v) => WINDOW_WIDTH >= v, | |
minHeight: (v) => WINDOW_HEIGHT >= v, | |
maxWidth: (v) => WINDOW_WIDTH <= v, | |
maxHeight: (v) => WINDOW_HEIGHT <= v | |
}; | |
//Cache keys | |
const comparatorKeys = Object.keys(comparators); | |
/** | |
* | |
* @param Arrray mediaQueries First match counts. | |
* @returns {*} The .data of the matched query or null | |
*/ | |
function media_query(mediaQueries) { | |
let result = mediaQueries.find(function (config) { | |
return Object.keys(config) | |
.filter(key => comparatorKeys.indexOf(key) >= 0) | |
.reduce((truthy, key) => { | |
//If a previous condition has failed keep result | |
if (!truthy) return truthy; | |
//Call comparator | |
return truthy = comparators[key].call(null, config[key]), truthy; | |
}, true) | |
}); | |
return result ? result.data : null; | |
} | |
let result = media_query([ | |
{ | |
maxWidth: 1820, | |
maxHeight: 1080, | |
data: { | |
query: 1 | |
} | |
}, | |
{ | |
width: 1000, | |
data: { | |
query: 2, | |
} | |
}, | |
{ | |
minWidth: 1000, | |
data: { | |
query: 3 | |
} | |
} | |
]); | |
console.log(result); |
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