ramda

//=> true const a = {}; const b = {};

const double = multiply(2); const triple = multiply(3);

const gt10 = x => x > 10; const even = x => x % 2 === 0; const f = either(gt10, even);

a: 1, b: 2, c: 3, });

const isEven = n => n % 2 === 0; 1, 2, 3, 4, ]);

const classyGreeting = name => 'The name's ' + name.last + ', ' + name.first + ' ' + name.last; const yellGreeting = o(toUpper, classyGreeting);

const composeWhileNotNil = composeWith( (f, res) => isNil(res) ? res : f(res), inc, prop("age"), ])({ age: 1 }); //=> 2

const tomato = { firstName: " Tomato ", data: { elapsed: 100, remaining: 1400, }, id: 123, }; const transformations = { firstName: trim, lastName: trim, // Will not get invoked.

const takesThreeArgs = function( a, b, c, return [a, b, c]; }; const takesTwoArgs = binary( takesThreeArgs, //=> [1, 2, 3]

const lteThree = x => x <= 3; 1, 2, 3, 4, 3, 2, 1, ]);

const isUpperCase = (val, key) => key.toUpperCase() === key;

const byAge = ascend(prop("age")); const people = [ { name: "Emma", age: 70, }, { name: "Peter", age: 78, }, { name: "Mikhail",

"write", "more", ]);

const t = always("Tee");

x => x > 0, "x", { x: 1, y: 2, },

const isClub = propEq("suit", "♣"); const isSpade = propEq("suit", "♠"); const isBlackCard = anyPass([ isClub, isSpade, ]); rank: "10", suit: "♣", }); //=> true

1, 2, 3, 4, 5, 6, 7, ]);