How to use the rgb-hex.apply function in rgb-hex
To help you get started, we’ve selected a few rgb-hex examples, based on popular ways it is used in public projects.
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postcss / postcss-color-rgba-fallback / index.js View on Github 
var value = valueParser(decl.value).walk(function(node) {
var nodes = node.nodes
if (node.type === "function" && node.value === "rgba") {
try {
alpha = parseFloat(nodes[6].value)
RGB = calculateRGB(backgroundColor, [
parseInt(nodes[0].value, 10),
parseInt(nodes[2].value, 10),
parseInt(nodes[4].value, 10),
alpha,
])
hex = rgbToHex.apply(null, RGB)
node.type = "word"
node.value = "#" + hex
}
catch (e) {
return false
}
return false
}
}).toString()
