prelude.ts - npm Package Compare versions

Comparing version 0.3.3 to 0.3.4

dist/src/HashSet.d.ts

@@ -152,2 +152,7 @@ import { ISet } from "./ISet";
     /**
+     * Returns a new set with the element you give removed
+     * if it was present in the set.
+     */
+    remove(elt: T & WithEquality): HashSet<T>;
+    /**
      * Returns a new set with all the elements of the current
@@ -154,0 +159,0 @@ * Set, minus the elements of the iterable you give as a parameter.

dist/src/HashSet.js

@@ -237,2 +237,9 @@ "use strict";
     /**
+     * Returns a new set with the element you give removed
+     * if it was present in the set.
+     */
+    HashSet.prototype.remove = function (elt) {
+        return new HashSet(this.hamt.remove(elt));
+    };
+    /**
      * Returns a new set with all the elements of the current
@@ -445,2 +452,5 @@ * Set, minus the elements of the iterable you give as a parameter.
     };
+    EmptyHashSet.prototype.remove = function (elt) {
+        return this;
+    };
     EmptyHashSet.prototype.equals = function (other) {
@@ -447,0 +457,0 @@ if (!other || !other.length) {

dist/src/index.d.ts

@@ -12,1 +12,2 @@ export * from "./Option";
 export * from "./Contract";
+export * from "./Predicate";

dist/src/index.js

@@ -21,2 +21,3 @@ "use strict";
 __export(require("./Contract"));
+__export(require("./Predicate"));
 //# sourceMappingURL=index.js.map

dist/src/List.d.ts

@@ -190,2 +190,10 @@ import { Option } from "./Option";
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     List.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    zipWithIndex(): List<[T, number]>;
+    /**
      * Reverse the collection. For instance:
@@ -233,2 +241,7 @@ *
     /**
+     * Removes the first element matching the predicate
+     * (use [[Seq.filter]] to remove all elements matching a predicate)
+     */
+    abstract removeFirst(predicate: (v: T) => boolean): List<T>;
+    /**
      * Prepend an element at the beginning of the collection.
@@ -235,0 +248,0 @@ */

dist/src/List.js

@@ -107,2 +107,12 @@ "use strict";
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     List.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    List.prototype.zipWithIndex = function () {
+        return SeqHelpers.zipWithIndex(this);
+    };
+    /**
      * Matches each element with a unique key that you extract from it.
@@ -226,2 +236,5 @@ * If the same key is present twice, the function will return None.
     };
+    EmptyList.prototype.removeFirst = function (predicate) {
+        return this;
+    };
     EmptyList.prototype.prepend = function (elt) {
@@ -448,2 +461,17 @@ return new ConsList(elt, this);
     };
+    ConsList.prototype.removeFirst = function (predicate) {
+        var curItem = this;
+        var result = emptyList;
+        var removed = false;
+        while (!curItem.isEmpty()) {
+            if (predicate(curItem.value) && !removed) {
+                removed = true;
+            }
+            else {
+                result = new ConsList(curItem.value, result);
+            }
+            curItem = curItem._tail;
+        }
+        return result.reverse();
+    };
     ConsList.prototype.prepend = function (elt) {
@@ -450,0 +478,0 @@ return new ConsList(elt, this);

dist/src/prelude_ts.min.js

 /**
- * prelude.ts v0.3.3
+ * prelude.ts v0.3.4
  * https://github.com/emmanueltouzery/prelude.ts
@@ -7,2 +7,2 @@ * (c) 2017-2017 Emmanuel Touzery
 */
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dist/src/Seq.d.ts

@@ -21,2 +21,7 @@ import { WithEquality, Ordering } from "./Comparison";
     /**
+     * Removes the first element matching the predicate
+     * (use [[Seq.filter]] to remove all elements matching a predicate)
+     */
+    removeFirst(predicate: (v: T) => boolean): Seq<T>;
+    /**
      * Call a function for element in the collection.
@@ -132,2 +137,10 @@ * Return the unchanged collection.
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     Vector.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    zipWithIndex(): Seq<[T, number]>;
+    /**
      * Retrieve the element at index idx.
@@ -134,0 +147,0 @@ * Returns an option because the collection may

dist/src/SeqHelpers.d.ts

@@ -17,1 +17,5 @@ import { Option } from "./Option";
 export declare function seqHasTrueEquality<T>(seq: Seq<T>): boolean;
+/**
+ * @hidden
+ */
+export declare function zipWithIndex<T>(seq: Seq<T>): Seq<[T, number]>;

dist/src/SeqHelpers.js

 "use strict";
 exports.__esModule = true;
 var Option_1 = require("./Option");
+var Stream_1 = require("./Stream");
 /**
@@ -39,2 +40,9 @@ * @hidden
 exports.seqHasTrueEquality = seqHasTrueEquality;
+/**
+ * @hidden
+ */
+function zipWithIndex(seq) {
+    return seq.zip(Stream_1.Stream.iterate(0, function (i) { return i + 1; }));
+}
+exports.zipWithIndex = zipWithIndex;
 //# sourceMappingURL=SeqHelpers.js.map

dist/src/Stream.d.ts

@@ -7,2 +7,3 @@ import { Option } from "./Option";
 import { Seq } from "./Seq";
+import { List } from "./List";
 /**
@@ -209,2 +210,10 @@ * A lazy, potentially infinite, sequence of values.
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     Stream.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    zipWithIndex(): Stream<[T, number]>;
+    /**
      * Reverse the collection. For instance:
@@ -251,2 +260,7 @@ *
     abstract appendAll(elts: Iterable<T>): Stream<T>;
+    /**
+     * Removes the first element matching the predicate
+     * (use [[Stream.filter]] to remove all elements matching a predicate)
+     */
+    abstract removeFirst(predicate: (v: T) => boolean): Stream<T>;
     abstract appendStream(elts: Stream<T>): Stream<T>;
@@ -358,2 +372,6 @@ /**
     /**
+     * Convert this collection to a list.
+     */
+    toList(): List<T>;
+    /**
      * Transform this value to another value type.
@@ -360,0 +378,0 @@ * Enables fluent-style programming by chaining calls.

dist/src/Stream.js

@@ -20,2 +20,3 @@ "use strict";
 var Lazy_1 = require("./Lazy");
+var List_1 = require("./List");
 var SeqHelpers = require("./SeqHelpers");
@@ -134,2 +135,12 @@ /**
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     Stream.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    Stream.prototype.zipWithIndex = function () {
+        return SeqHelpers.zipWithIndex(this);
+    };
+    /**
      * Matches each element with a unique key that you extract from it.
@@ -160,2 +171,8 @@ * If the same key is present twice, the function will return None.
     /**
+     * Convert this collection to a list.
+     */
+    Stream.prototype.toList = function () {
+        return List_1.List.ofIterable(this);
+    };
+    /**
      * Transform this value to another value type.
@@ -254,2 +271,5 @@ * Enables fluent-style programming by chaining calls.
     };
+    EmptyStream.prototype.removeFirst = function (predicate) {
+        return this;
+    };
     EmptyStream.prototype.appendStream = function (elts) {
@@ -475,2 +495,8 @@ return elts;
     };
+    ConsStream.prototype.removeFirst = function (predicate) {
+        var tail = this._tail.get();
+        return predicate(this.value) ?
+            tail :
+            new ConsStream(this.value, Lazy_1.Lazy.of(function () { return tail.removeFirst(predicate); }));
+    };
     ConsStream.prototype.appendStream = function (elts) {
@@ -477,0 +503,0 @@ var tail = this._tail.get();

dist/src/Vector.d.ts

@@ -6,2 +6,3 @@ import { Seq } from "./Seq";
 import { Option } from "./Option";
+import { List } from "./List";
 /**
@@ -119,2 +120,7 @@ * A general-purpose list class with all-around good performance.
     /**
+     * Removes the first element matching the predicate
+     * (use [[Seq.filter]] to remove all elements matching a predicate)
+     */
+    removeFirst(predicate: (v: T) => boolean): Vector<T>;
+    /**
      * Return a new collection where each element was transformed
@@ -289,2 +295,6 @@ * by the mapper function you give.
     /**
+     * Convert this collection to a list.
+     */
+    toList(): List<T>;
+    /**
      * Combine this collection with the collection you give in
@@ -302,2 +312,10 @@ * parameter to produce a new collection which combines both,
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     Vector.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    zipWithIndex(): Vector<[T, number]>;
+    /**
      * Reverse the collection. For instance:
@@ -304,0 +322,0 @@ *

dist/src/Vector.js

@@ -8,2 +8,3 @@ "use strict";
 var HashSet_1 = require("./HashSet");
+var List_1 = require("./List");
 var SeqHelpers = require("./SeqHelpers");
@@ -213,2 +214,21 @@ var hamt = require("hamt_plus");
     /**
+     * Removes the first element matching the predicate
+     * (use [[Seq.filter]] to remove all elements matching a predicate)
+     */
+    Vector.prototype.removeFirst = function (predicate) {
+        var _this = this;
+        return new Vector(hamt.empty.mutate(function (h) {
+            var found = false;
+            for (var i = 0; i < _this.hamt.size; i++) {
+                var item = _this.hamt.get(i + _this.indexShift);
+                if (predicate(item) && !found) {
+                    found = true;
+                }
+                else {
+                    h.set(h.size, item);
+                }
+            }
+        }), 0);
+    };
+    /**
      * Return a new collection where each element was transformed
@@ -232,3 +252,2 @@ * by the mapper function you give.
         return new Vector(hamt.empty.mutate(function (h) {
-            var outputIdx = 0;
             for (var i = 0; i < _this.hamt.size; i++) {
@@ -238,3 +257,3 @@ var item = _this.hamt.get(i + _this.indexShift);
                 if (val.isSome()) {
-                    h.set(outputIdx++, val.getOrThrow());
+                    h.set(h.size, val.getOrThrow());
                 }
@@ -252,7 +271,6 @@ }
         return new Vector(hamt.empty.mutate(function (h) {
-            var outputIdx = 0;
             for (var i = 0; i < _this.hamt.size; i++) {
                 var item = _this.hamt.get(i + _this.indexShift);
                 if (predicate(item)) {
-                    h.set(outputIdx++, item);
+                    h.set(h.size, item);
                 }
@@ -539,2 +557,8 @@ }
     /**
+     * Convert this collection to a list.
+     */
+    Vector.prototype.toList = function () {
+        return List_1.List.ofIterable(this);
+    };
+    /**
      * Combine this collection with the collection you give in
@@ -566,2 +590,12 @@ * parameter to produce a new collection which combines both,
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     Vector.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    Vector.prototype.zipWithIndex = function () {
+        return SeqHelpers.zipWithIndex(this);
+    };
+    /**
      * Reverse the collection. For instance:
@@ -568,0 +602,0 @@ *

dist/tests/HashSet.js

@@ -103,2 +103,5 @@ "use strict";
     it("calculates removeAll from empty well", function () { return assert.ok(HashSet_1.HashSet.empty().equals(HashSet_1.HashSet.empty().removeAll([0, 3]))); });
+    it("calculates remove well", function () { return assert.ok(HashSet_1.HashSet.of(0, 1, 2, 4).equals(HashSet_1.HashSet.of(0, 1, 2, 3, 4).remove(3))); });
+    it("calculates remove well event if item not present", function () { return assert.ok(HashSet_1.HashSet.of(0, 1, 2, 3, 4).equals(HashSet_1.HashSet.of(0, 1, 2, 3, 4).remove(5))); });
+    it("calculates remove from empty well", function () { return assert.ok(HashSet_1.HashSet.empty().equals(HashSet_1.HashSet.empty().remove(3))); });
     it("filters correctly", function () { return assert.ok(HashSet_1.HashSet.of(2, 4).equals(HashSet_1.HashSet.of(1, 2, 3, 4, 5).filter(function (x) { return x % 2 == 0; }))); });
@@ -105,0 +108,0 @@ });

dist/tests/Seq.js

@@ -6,2 +6,3 @@ "use strict";
 var Option_1 = require("../src/Option");
+var Predicate_1 = require("../src/Predicate");
 var SampleData_1 = require("./SampleData");
@@ -149,2 +150,5 @@ var TestHelpers_1 = require("./TestHelpers");
         it("returns an empty stream when dropping too much", function () { return assert.deepEqual([], of(1, 2).drop(3).toArray()); });
+        it("calculates removeFirst well", function () { return assert.deepEqual([0, 1, 3, 4], of(0, 1, 2, 3, 4).removeFirst(Predicate_1.Predicates.isIn([3, 2])).toArray()); });
+        it("calculates removeFirst well event if item not present", function () { return assert.deepEqual([0, 1, 2, 3, 4], of(0, 1, 2, 3, 4).removeFirst(Predicate_1.Predicates.equals(5)).toArray()); });
+        it("calculates removeFirst from empty well", function () { return assert.ok(empty().equals(empty().removeFirst(function (x) { return x === 3; }))); });
     });
@@ -151,0 +155,0 @@ describe(seqName + " value extraction", function () {

package.json

 {
     "name": "prelude.ts",
-    "version": "0.3.3",
+    "version": "0.3.4",
     "description": "A typescript functional programming library",
@@ -40,5 +40,5 @@ "main": "dist/src/index.js",
         "clean": "rm -Rf ./dist",
-        "docgen": "./node_modules/typedoc/bin/typedoc --mode file --out apidoc --excludePrivate --excludeExternals --excludeNotExported --ignoreCompilerErrors src/index.ts",
+        "docgen": "./scripts/make_doc.sh",
         "benchmarks": "tsc && node ./dist/benchmarks/bench.js"
     }
 }

src/HashSet.ts

@@ -249,2 +249,10 @@ import { ISet } from "./ISet";
     /**
+     * Returns a new set with the element you give removed
+     * if it was present in the set.
+     */
+    remove(elt: T&WithEquality): HashSet<T> {
+        return new HashSet<T>(this.hamt.remove(elt));
+    }
+
+    /**
      * Returns a new set with all the elements of the current
@@ -483,2 +491,6 @@ * Set, minus the elements of the iterable you give as a parameter.
 
+    remove(elt: T&WithEquality): HashSet<T> {
+        return this;
+    }
+
     equals(other: HashSet<T>): boolean {
@@ -485,0 +497,0 @@ if (!other || !other.length) {

src/index.ts

@@ -17,1 +17,2 @@ // Not re-exporting the abstract types such as Seq, Collection and so on,
 export * from "./Contract";
+export * from "./Predicate";

src/List.ts

@@ -249,2 +249,13 @@ import { Option } from "./Option";
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     List.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    zipWithIndex(): List<[T,number]> {
+        return <List<[T,number]>>SeqHelpers.zipWithIndex<T>(this);
+    }
+
+    /**
      * Reverse the collection. For instance:
@@ -292,3 +303,3 @@ *
     shuffle(): List<T> {
-        return List.ofIterable(SeqHelpers.shuffle(this.toArray()));
+        return List.ofIterable<T>(SeqHelpers.shuffle(this.toArray()));
     }
@@ -307,2 +318,8 @@
     /**
+     * Removes the first element matching the predicate
+     * (use [[Seq.filter]] to remove all elements matching a predicate)
+     */
+    abstract removeFirst(predicate: (v:T)=>boolean): List<T>;
+
+    /**
      * Prepend an element at the beginning of the collection.
@@ -554,2 +571,6 @@ */
 
+    removeFirst(predicate: (x:T)=>boolean): List<T> {
+        return this;
+    }
+
     prepend(elt: T): List<T> {
@@ -821,2 +842,17 @@ return new ConsList(elt, this);
 
+    removeFirst(predicate: (x:T)=>boolean): List<T> {
+        let curItem: List<T> = this;
+        let result = <EmptyList<T>>emptyList;
+        let removed = false;
+        while (!curItem.isEmpty()) {
+            if (predicate((<ConsList<T>>curItem).value) && !removed) {
+                removed = true;
+            } else {
+                result = new ConsList((<ConsList<T>>curItem).value, result);
+            }
+            curItem = (<ConsList<T>>curItem)._tail;
+        }
+        return result.reverse();
+    }
+
     prepend(elt: T): List<T> {
@@ -823,0 +859,0 @@ return new ConsList(elt, this);

src/Seq.ts

@@ -25,2 +25,8 @@ import { WithEquality, Ordering } from "./Comparison";
     /**
+     * Removes the first element matching the predicate
+     * (use [[Seq.filter]] to remove all elements matching a predicate)
+     */
+    removeFirst(predicate: (v:T)=>boolean): Seq<T>;
+
+    /**
      * Call a function for element in the collection.
@@ -153,2 +159,11 @@ * Return the unchanged collection.
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     Vector.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    zipWithIndex(): Seq<[T,number]>;
+
+    /**
      * Retrieve the element at index idx.
@@ -155,0 +170,0 @@ * Returns an option because the collection may

src/SeqHelpers.ts

@@ -5,2 +5,3 @@ import { Option } from "./Option";
 import { Seq } from "./Seq";
+import { Stream } from "./Stream";
 
@@ -45,1 +46,8 @@ /**
 }
+
+/**
+ * @hidden
+ */
+export function zipWithIndex<T>(seq: Seq<T>): Seq<[T,number]> {
+    return seq.zip<number>(Stream.iterate(0,i=>i+1));
+}

src/Stream.ts

@@ -13,2 +13,3 @@ import { Option } from "./Option";
 import { Lazy } from "./Lazy";
+import { List } from "./List";
 import * as SeqHelpers from "./SeqHelpers";
@@ -279,2 +280,13 @@
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     Stream.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    zipWithIndex(): Stream<[T,number]> {
+        return <Stream<[T,number]>>SeqHelpers.zipWithIndex<T>(this);
+    }
+
+    /**
      * Reverse the collection. For instance:
@@ -335,2 +347,8 @@ *
 
+    /**
+     * Removes the first element matching the predicate
+     * (use [[Stream.filter]] to remove all elements matching a predicate)
+     */
+    abstract removeFirst(predicate: (v:T)=>boolean): Stream<T>;
+
     /*
@@ -471,2 +489,9 @@ * Append another Stream at the end of this Stream.
     /**
+     * Convert this collection to a list.
+     */
+    toList(): List<T> {
+        return List.ofIterable(this);
+    }
+
+    /**
      * Transform this value to another value type.
@@ -604,2 +629,6 @@ * Enables fluent-style programming by chaining calls.
 
+    removeFirst(predicate: (x:T)=>boolean): Stream<T> {
+        return this;
+    }
+
     appendStream(elts:Stream<T>): Stream<T> {
@@ -870,2 +899,10 @@ return elts;
 
+    removeFirst(predicate: (x:T)=>boolean): Stream<T> {
+        const tail = this._tail.get();
+        return predicate(this.value) ?
+            tail :
+            new ConsStream(this.value,
+                           Lazy.of(()=>tail.removeFirst(predicate)));
+    }
+
     appendStream(elts:Stream<T>): Stream<T> {
@@ -872,0 +909,0 @@ const tail = this._tail.get();

src/Vector.ts

@@ -9,2 +9,3 @@ import { Seq } from "./Seq";
 import { HashSet } from "./HashSet";
+import { List } from "./List";
 import * as SeqHelpers from "./SeqHelpers";
@@ -232,2 +233,21 @@ const hamt: any = require("hamt_plus");
     /**
+     * Removes the first element matching the predicate
+     * (use [[Seq.filter]] to remove all elements matching a predicate)
+     */
+    removeFirst(predicate: (v:T)=>boolean): Vector<T> {
+        return new Vector<T>(hamt.empty.mutate(
+            (h:any) => {
+                let found = false;
+                for (let i=0;i<this.hamt.size;i++) {
+                    const item = this.hamt.get(i+this.indexShift);
+                    if (predicate(item) && !found) {
+                        found = true;
+                    } else {
+                        h.set(h.size, item);
+                    }
+                }
+            }), 0);
+    }
+
+    /**
      * Return a new collection where each element was transformed
@@ -254,3 +274,2 @@ * by the mapper function you give.
             (h:any) => {
-                let outputIdx = 0;
                 for (let i=0;i<this.hamt.size;i++) {
@@ -260,3 +279,3 @@ const item = this.hamt.get(i+this.indexShift);
                     if (val.isSome()) {
-                        h.set(outputIdx++, val.getOrThrow());
+                        h.set(h.size, val.getOrThrow());
                     }
@@ -275,7 +294,6 @@ }
             (h:any) => {
-                let outputIdx = 0;
                 for (let i=0;i<this.hamt.size;i++) {
                     const item = this.hamt.get(i+this.indexShift);
                     if (predicate(item)) {
-                        h.set(outputIdx++, item);
+                        h.set(h.size, item);
                     }
@@ -587,2 +605,9 @@ }
     /**
+     * Convert this collection to a list.
+     */
+    toList(): List<T> {
+        return List.ofIterable(this);
+    }
+
+    /**
      * Combine this collection with the collection you give in
@@ -616,2 +641,13 @@ * parameter to produce a new collection which combines both,
     /**
+     * Combine this collection with the index of the elements
+     * in it. Handy if you need the index when you map on
+     * the collection for instance:
+     *
+     *     Vector.of("a","b").zipWithIndex().map([v,idx] => ...)
+     */
+    zipWithIndex(): Vector<[T,number]> {
+        return <Vector<[T,number]>>SeqHelpers.zipWithIndex<T>(this);
+    }
+
+    /**
      * Reverse the collection. For instance:
@@ -618,0 +654,0 @@ *

tests/HashSet.ts

@@ -135,2 +135,8 @@ import { HashSet } from "../src/HashSet";
         HashSet.empty<number>().equals(HashSet.empty<number>().removeAll([0,3]))));
+    it("calculates remove well", () => assert.ok(
+        HashSet.of(0,1,2,4).equals(HashSet.of(0,1,2,3,4).remove(3))));
+    it("calculates remove well event if item not present", () => assert.ok(
+        HashSet.of(0,1,2,3,4).equals(HashSet.of(0,1,2,3,4).remove(5))));
+    it("calculates remove from empty well", () => assert.ok(
+        HashSet.empty<number>().equals(HashSet.empty<number>().remove(3))));
     it("filters correctly", () => assert.ok(
@@ -137,0 +143,0 @@ HashSet.of(2,4).equals(HashSet.of(1,2,3,4,5).filter(x => x%2==0))));

tests/Seq.ts

@@ -5,2 +5,3 @@ import { Seq } from "../src/Seq";
 import { Option } from "../src/Option";
+import { Predicates } from "../src/Predicate";
 import { MyClass } from "./SampleData";
@@ -229,2 +230,8 @@ import { assertFailCompile } from "./TestHelpers";
             [], of(1,2).drop(3).toArray()));
+        it("calculates removeFirst well", () => assert.deepEqual(
+            [0,1,3,4], of(0,1,2,3,4).removeFirst(Predicates.isIn([3,2])).toArray()));
+        it("calculates removeFirst well event if item not present", () => assert.deepEqual(
+            [0,1,2,3,4], of(0,1,2,3,4).removeFirst(Predicates.equals(5)).toArray()));
+        it("calculates removeFirst from empty well", () => assert.ok(
+            empty<number>().equals(empty<number>().removeFirst(x => x === 3))));
     });
@@ -231,0 +238,0 @@ describe(seqName + " value extraction", () => {

No alert changes

Improved metrics

Total package byte prevSize

2539906

increased by12.68%

Number of package files

170

increased by8.97%

Lines of code

18976

increased by4.34%

No dependency changes