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Ramda vs Lodash
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var _ = require("lodash"); | |
var R = require("ramda"); | |
var companies = [ | |
{ name: "tw", since: 1993 }, | |
{ name: "pucrs", since: 1930 }, | |
{ name: "tw br", since: 2009 } | |
]; | |
var r1 = _(companies).chain() | |
.filter(function(c) { | |
return c.name.split(" ")[0] === "tw"; | |
}) | |
.map(function(c) { | |
return { | |
name: c.name.toUpperCase(), | |
since: c.since | |
}; | |
}) | |
.sortBy(function(c) { | |
return c.since; | |
}) | |
.reverse() | |
.value(); | |
console.log("with lodash:", r1); | |
var r2 = R.compose( | |
R.reverse, | |
R.sortBy(R.prop("since")), | |
R.map(R.over(R.lensProp("name"), R.toUpper)), | |
R.filter(R.where({ name: R.test(/^tw/) })) | |
)(companies); | |
console.log("with ramda:", r2); |
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