/// import prelude = require("prelude-ls"); var five: number = prelude.id(5); //=> 5 var emptyObj: Object = prelude.id({}); //=> {} var expectBool: boolean = prelude.isType("Undefined", void 8); //=> true prelude.isType("Boolean", true); //=> true prelude.isType("Number", 1); //=> true prelude.isType("String", "hi"); //=> true prelude.isType("Object", {}); //=> true prelude.isType("Array", []); //=> true var numberArray: Array = prelude.replicate(4, 3); //=> [3, 3, 3, 3] var strArray: Array = prelude.replicate(4, "a"); //=> ["a", "a", "a", "a"] prelude.replicate(0, "a"); //=> [] // List var eachRes: Array> = prelude.each(x => x.push("boom"), [["a"], ["b"], ["c"]]); //=> [["a", "boom"], ["b", "boom"], ["c", "boom"]] var mapRes: Array = prelude.map(x => x.toString(), [1, 2, 3, 4, 5]) //=> ["1", "2", "3", "4", "5"] prelude.map(x => x.toUpperCase(), ["ha", "ma"]); //=> ["HA", "MA"] prelude.map(x => x.num, [{num: 3}, {num: 1}]); //=> [3, 1] var compactRes: Array = prelude.compact([0, 1, false, true, "", "ha"]) //=> [1, true, "ha"] var filterRes: Array = prelude.filter(x => x < 3, [1, 2, 3, 4, 5]); //=> [1, 2] prelude.filter(prelude.even, [3, 4, 0]); //=> [4, 0] var rejectRes: Array = prelude.reject(prelude.odd, [1, 2, 3, 4, 5]); //=> [2, 4] var partitionRes: Array> = prelude.partition(x => x > 60, [49, 58, 76, 43, 88, 77, 90]); //=> [[76, 88, 77, 90], [49, 58, 43]] var findRes: number = prelude.find(prelude.odd, [2, 4, 6, 7, 8, 9, 10]); //=> 7 var headRes: number = prelude.head([1, 2, 3, 4, 5]); //=> 1 var tailRes: Array = prelude.tail([1, 2, 3, 4, 5]); //=> [2, 3, 4, 5] var lastRes: number = prelude.last([1, 2, 3, 4, 5]); //=> 5 var initialRes: Array = prelude.initial([1, 2, 3, 4, 5]); //=> [1, 2, 3, 4] var emptyRes: boolean = prelude.empty([]); //=> true var reverseRes: Array = prelude.reverse([1, 2, 3]); //=> [3, 2, 1] var uniqueRes: Array = prelude.unique([1, 1, 1, 3, 3, 6, 7, 8]); //=> [1, 3, 6, 7, 8] var uniqueByRes: Array = prelude.uniqueBy(x => x.length, ["and", "here", "are", "some", "words"]); //=> ["and", "here", "words"] var foldRes: number = prelude.fold(x => y => x + y, 0, [1, 2, 3, 4, 5]); //=> 15 var fold1Res: number = prelude.fold1(x => y => x + y, [1, 2, 3]); //=> 6 var foldrRes: number = prelude.foldr(x => y => x - y, 9, [1, 2, 3, 4]); //=> 7 var foldrStrRes: string = prelude.foldr(x => y => x + y, "e", ["a", "b", "c", "d"]); //=> "abcde" var foldr1Res: number = prelude.foldr1(x => y => x - y, [1, 2, 3, 4, 9]); //=> 7 var unfoldrRes: Array = prelude.unfoldr(x => x === 0 ? null : [x, x - 1], 10); //=> [10, 9, 8, 7, 6, 5, 4, 3, 2, 1] var concatRes: Array = prelude.concat([[1], [2, 3], [4]]); //=> [1, 2, 3, 4] var concatMapRes: Array = prelude.concatMap(x => ["hoge", x, x + 2], [1, 2, 3]); //=> ["hoge", 1, 3, "hoge", 2, 4, "hoge", 3, 5] var flattenRes: Array = prelude.flatten([1, [[2], 3], [4, [[5]]]]); //=> [1, 2, 3, 4, 5] var differenceRes: Array = prelude.difference([1, 2, 3], [1]); //=> [2, 3] prelude.difference([1, 2, 3, 4, 5], [5, 2, 10], [9]); //=> [1, 3, 4] prelude.intersection([2, 3], [9, 8], [12, 1], [99]); //=> [] var intersectionRes: Array = prelude.intersection([1, 2, 3], [101, 2, 1, 10], [2, 1], [-1, 0, 1, 2]); //=> [1, 2] prelude.intersection([1, 2, 3], [2, 1, 3], [3, 1, 2]); //=> [1, 2, 3] var unionRes: Array = prelude.union([1, 5, 7], [3, 5], []); //=> [1, 5, 7, 3] var countByRes: Object = prelude.countBy(prelude.floor, [4.2, 6.1, 6.4]); //=> {4: 1, 6: 2} prelude.countBy(x => x.length, ["one", "two", "three"]); //=> {3: 2, 5: 1} var groupByRes: Object = prelude.groupBy(prelude.floor, [4.2, 6.1, 6.4]); //=> {4: [4.2], 6: [6.1, 6.4]} prelude.groupBy(x => x.length, ["one", "two", "three"]); //=> {3: ["one", "two"], 5: ["three"]} var andListRes: boolean = prelude.andList([true, 2 + 2 == 4]); //=> true prelude.andList([true, true, false]); //=> false prelude.andList([]); //=> true var orListRes: boolean = prelude.orList([false, false, true, false]); //=> true prelude.orList([]); //=> false var anyRes: boolean = prelude.any(prelude.even, [3, 5, 7, 8, 9]); //=> true prelude.any(prelude.even, []); //=> false var allRes: boolean = prelude.all(prelude.isType("String"), ["ha", "ma", "la"]); //=> true prelude.all(prelude.isType("String"), []); //=> true var sortRes: Array = prelude.sort([3, 1, 5, 2, 4, 6]); //=> [1, 2, 3, 4, 5, 6] var f = (x: string) => (y: string) => x.length > y.length ? 1 : x.length < y.length ? -1 : 0; var sortWithRes: Array = prelude.sortWith(f, ["three", "one", "two"]); //=> ["one", "two", "three"] var sortByRes: Array = prelude.sortBy(x => x.length, ["there", "hey", "a", "ha"]); //=> ["a", "ha", "hey", "there"] var table: Array<{ id: number; name: string; }> = [{ id: 1, name: "george" }, { id: 2, name: "mike" }, { id: 3, name: "donald" }]; prelude.sortBy(x => x.name, table); //=> [{"id": 3, "name": "donald"}, // {"id": 1, "name": "george"}, // {"id": 2, "name": "mike"}] var sumRes: number = prelude.sum([1, 2, 3, 4, 5]); //=> 15 prelude.sum([]); //=> 0 var productRes: number = prelude.product([1, 2, 3]); //=> 6 prelude.product([]); //=> 1 var meanRes: number = prelude.mean([1, 2, 3, 4, 5]); //=> 3 var maximumRes: number = prelude.maximum([4, 1, 9, 3]); //=> 9 var minimumRes: string = prelude.minimum(["c", "e", "a", "d", "b"]); //=> "a" var maximumByRes: string = prelude.maximumBy(x => x.length, ["hi", "there", "I", "am", "looooong"]); //=> "looooong" var scanRes: Array = prelude.scan(x => y => x + y, 0, [1, 2, 3]); //=> [0, 1, 3, 6] var scan1Res: Array = prelude.scan1(x => y => x + y, [1, 2, 3]); //=> [1, 3, 6] var scanrRes: Array = prelude.scanr(x => y => x + y, 0, [1, 2, 3]); //=> [6, 5, 3, 0] var scanr1Res: Array = prelude.scanr1(x => y => x + y, [1, 2, 3]); //=> [6, 5, 3] var sliceRes: Array = prelude.slice(2, 4, [1, 2, 3, 4, 5]); //=> [3, 4] var takeRes: Array = prelude.take(2, [1, 2, 3, 4, 5]); //=> [1, 2] var dropRes: Array = prelude.drop(2, [1, 2, 3, 4, 5]); //=> [3, 4, 5] var splitAtRes: Array> = prelude.splitAt(2, [1, 2, 3, 4, 5]); //=> [[1, 2], [3, 4, 5]] var takeWhileRes: Array = prelude.takeWhile(prelude.odd, [1, 3, 5, 4, 8, 7, 9]); //=> [1, 3, 5] var dropWhileRes: Array = prelude.dropWhile(prelude.even, [2, 4, 5, 6]); //=> [5, 6] var spanRes: Array> = prelude.span(prelude.even, [2, 4, 5, 6]); //=> [[2, 4], [5, 6]] var breakListRes: Array> = prelude.breakList(x => x == 3, [1, 2, 3, 4, 5]); //=> [[1, 2], [3, 4, 5]] var zipRes: Array> = prelude.zip([1, 2, 3], [4, 5, 6]); //=> [[1, 4], [2, 5], [3, 6]] var zipWithRes: Array = prelude.zipWith(x => y => x + y, [1, 2, 3], [4, 5, 6]); //=> [5, 7, 9] var zipAllRes: Array> = prelude.zipAll([1, 2, 3], [4, 5, 6], [7, 8, 9]); //=> [[1, 4, 7], [2, 5, 8], [3, 6, 9]] var zipAllWithRes: Array = prelude.zipAllWith((a, b, c) => a + b + c, [1, 2, 3], [3, 2, 1], [1, 1, 1]); //=> [5, 5, 5] var atRes: number = prelude.at(2, [1, 2, 3, 4]); //=> 3 prelude.at(-3, [1, 2, 3, 4]); //=> 2 var elemIndexRes: number = prelude.elemIndex("a", ["c", "a", "b", "a"]); //=> 1 var elemIndicesRes: Array = prelude.elemIndices("a", ["c", "a", "b", "a"]); //=> [1, 3] var findIndexRes: number = prelude.findIndex(prelude.even, [1, 2, 3, 4]); //=> 1 var findIndicesRes: Array = prelude.findIndices(prelude.even, [1, 2, 3, 4]); //=> [1, 3] // Obj var keysRes: Array = prelude.keys({a: 2, b: 3, c: 9}); //=> ["a", "b", "c"] var valuesRes: Array = prelude.values({a: 2, b: 3, c: 9}); //=> [2, 3, 9] var pairsToObjRes: Object = prelude.pairsToObj([["a", "b"], ["c", "d"], ["e", 1]]); //=> {a: "b", c: "d", e: 1} var objToPairsRes: Array> = prelude.objToPairs({a: "b", c: "d", e: 1}); //=> [["a", "b"], ["c", "d"], ["e", 1]] var listsToObjRes: Object = prelude.listsToObj(["a", "b", "c"], [1, 2, 3]); //=> {a: 1, b: 2, c: 3} var objToListsRes = prelude.objToLists({a: 1, b: 2, c: 3}); //=> [["a", "b", "c"], [1, 2, 3]] var objEmptyRes: boolean = prelude.Obj.empty({}); //=> true var count = 4; prelude.Obj.each(x => count += x, {a: 1, b: 2, c: 3}); count; //=> 10 prelude.Obj.map(x => x + 2, {a: 2, b: 3, c: 4}); //=> {a: 4, b: 5, c: 6} prelude.Obj.compact({a: 0, b: 1, c: false, d: "", e: "ha"}); //=> {b: 1, e: "ha"} prelude.Obj.filter(prelude.even, {a: 3, b: 4, c: 0}); //=> {b: 4, c: 0} prelude.Obj.reject(x => x == 2, {a: 1, b: 2}); //=> {a: 1} prelude.Obj.partition(x => x == 2, {a: 1, b: 2, c: 3}); //=> [{b: 2}, {a: 1, c: 3}] prelude.Obj.find(prelude.even, {a: 1, b: 2, c: 3, d: 4}); //=> 2 // Str prelude.split("|", "1|2|3"); //=> ["1", "2", "3"] prelude.join("|", ["1", "2", "3"]); //=> "1|2|3" prelude.lines("one\ntwo\nthree"); //=> ["one", "two", "three"] prelude.unlines(["one", "two", "three"]); //=> "one\ntwo\nthree" prelude.words("hello, what is that?"); //=> ["hello,", "what", "is", "that?"] prelude.unwords(["one", "two", "three"]); //=> "one two three" prelude.chars("hello"); //=> ["h", "e", "l", "l", "o"] prelude.unchars(["t", "h", "e", "r", "e"]); //=> "there" prelude.unchars(["ma", "ma"]); //=> "mama" prelude.repeat(4, "a"); //=> "aaaa" prelude.repeat(2, "ha"); //=> "haha" prelude.capitalize("hi there"); //=> "Hi there" prelude.camelize("hi-there"); //=> "hiThere" prelude.camelize("hi_there"); //=> "hiThere" prelude.dasherize("hiThere"); //=> "hi-there" prelude.dasherize("FooBar"); //=> "foo-bar" prelude.dasherize("innerHTML"); //=> "inner-HTML" prelude.empty(""); //=> true prelude.reverse("goat"); //=> "taog" prelude.slice(2, 4, "hello"); //=> "ll" prelude.take(4, "hello"); //=> "hell" prelude.drop(1, "goat"); //=> "oat" prelude.splitAt(4, "hello"); //=> ["hell", "o"] prelude.takeWhile(x => !prelude.empty(prelude.elemIndices(x, ["a", "b", "c", "d"])), "cabdek"); //=> "cabd" prelude.dropWhile(x => x === "m", "mmmmmhmm"); //=> "hmm" prelude.span(x => x === "m", "mmmmmhmm"); //=> ["mmmmm", "hmm"] prelude.Str.breakStr(x => x === "h", "mmmmmhmm"); //=> ["mmmmm", "hmm"] // Func var applyRes: number = prelude.apply((x, y) => x + y, [2, 3]); //=> 5 var add = (x: number, y: number) => x + y; var addCurried = prelude.curry(add); var addFour = addCurried(4); addFour(2); //=> 6 var flipRes: (x: number) => (y: number) => number = prelude.flip(x => y => Math.pow(x, y)); var fixRes: number = prelude.fix( (fib: (n: number) => number) => (n: number) => n <= 1 ? 1 : fib(n - 1) + fib(n - 2) )(9); //=> 55 var sameLength: (x: string, y: string) => boolean = prelude.over((x, y) => x == y, x => x.length); sameLength('hi', 'me'); //=> true sameLength('one', 'boom'); //=> false // Num prelude.max(3, 1); //=> 3 var maxRes: string = prelude.max("a", "c"); //=> "c" var minRes: number = prelude.min(3, 1); //=> 1 prelude.min("a", "c"); //=> "a" var negateRes: number = prelude.negate(3); //=> -3 prelude.negate(-2); //=> 2 var absRes: number = prelude.abs(-2); //=> 2 prelude.abs(2); //=> 2 var signumRes: number = prelude.signum(-5); //=> -1 prelude.signum(0); //=> 0 prelude.signum(9); //=> 1 var quotRes: number = prelude.quot(-20, 3); //=> -6 var remRes: number = prelude.rem(-20, 3); //=> -2 var divRes: number = prelude.div(-20, 3); //=> -7 var modRes: number = prelude.mod(-20, 3); //=> 1 var recipRes: number = prelude.recip(4); //=> 0.25 var piRes: number = prelude.pi; //=> 3.141592653589793 var tauRes: number = prelude.tau; //=> 6.283185307179586 var expRes: number = prelude.exp(1); //=> 2.718281828459045 var sqrtRes: number = prelude.sqrt(4); //=> 2 var lnRes: number = prelude.ln(10); //=> 2.302585092994046 var powRes: number = prelude.pow(-2, 2); //=> 4 var sinRes: number = prelude.sin(prelude.pi / 2); //=> 1 var cosRes: number = prelude.cos(prelude.pi); //=> -1 var aTanRes: number = prelude.tan(prelude.pi / 4); //=> 1 var asinRes: number = prelude.asin(0); //=> 0 var acosRes: number = prelude.acos(1); //=> 0 prelude.atan(0); //=> 0 var atanRes: number = prelude.atan2(1, 0); //=> 1.5707963267948966 var truncateRes: number = prelude.truncate(-1.5); //=> -1 prelude.truncate(1.5); //=> 1 var roundRes: number = prelude.round(0.6); //=> 1 prelude.round(0.5); //=> 1 prelude.round(0.4); //=> 0 var ceilingRes: number = prelude.ceiling(0.1); //=> 1 var floorRes: number = prelude.floor(0.9); //=> 0 var isItNanRes: boolean = prelude.isItNaN(prelude.sqrt(-1)); //=> true var evenRes: boolean = prelude.even(4); //=> true prelude.even(0); //=> true var oddRes: boolean = prelude.odd(3); //=> true var gcdRes: number = prelude.gcd(12, 18); //=> 6 var lcmRes: number = prelude.lcm(12, 18); //=> 36