allex_arrayoperationslowlevellib - npm Package Compare versions

Comparing version 1.0.0 to 1.1.0

index.js

@@ -48,2 +48,17 @@ module.exports = function createArryOperations(extend, readPropertyFromDotDelimitedString, isFunction, Map, AllexJSONizingError) {
 
+  function lastfinder (propname, propval, result, item) {
+    var und;
+    if (propval !== und && readPropertyFromDotDelimitedString(item, propname) === propval) {
+      return item;
+    }
+    return result;
+  }
+
+  function findLastElementWithProperty(a, propname, propval) {
+    if (!(a && a.reduce)) {
+      return;
+    }
+    return a.reduce(lastfinder.bind(null, propname, propval), void 0);
+  }
+
   function findElementAndIndexWithProperty(a, propname, propval) {
@@ -300,2 +315,3 @@ if (!(a && a.some)) {
     findElementWithProperty: findElementWithProperty,
+    findLastElementWithProperty: findLastElementWithProperty,
     findElementAndIndexWithProperty: findElementAndIndexWithProperty,
@@ -302,0 +318,0 @@ pivot : pivot,

package.json

 {
   "name": "allex_arrayoperationslowlevellib",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "Various operations on Arrays",
@@ -22,2 +22,11 @@ "main": "index.js",
   "devDependencies": {
+    "allex_avltreelowlevellib": "^1.1.0",
+    "allex_checkslowlevellib": "^1.1.4",
+    "allex_doublelinkedlistbaselowlevellib": "^1.1.0",
+    "allex_errorlowlevellib": "^1.0.0",
+    "allex_inheritlowlevellib": "^3.0.1",
+    "allex_jsonizingerrorlowlevellib": "^1.0.0",
+    "allex_maplowlevellib": "^1.0.0",
+    "allex_objectmanipulationlowlevellib": "^3.1.0",
+    "allex_stringmanipulationlowlevellib": "^3.4.2",
     "chai": "3.x"
@@ -24,0 +33,0 @@ },

test/test.basic.js

 var expect = require('chai').expect,
-  inherit = require('allex_inheritlowlevellib').inherit,
+  checkftions = require('allex_checkslowlevellib'),
+  inherit = require('allex_inheritlowlevellib')(checkftions.isFunction, checkftions.isString).inherit,
   AllexError = require('allex_errorlowlevellib')(inherit),
   AllexJSONizingError = require('allex_jsonizingerrorlowlevellib')(AllexError,inherit),
-  checkftions = require('allex_checkslowlevellib'),
   objmanip = require('allex_objectmanipulationlowlevellib')(checkftions),
@@ -58,2 +58,8 @@ stringmanip = require('allex_stringmanipulationlowlevellib')(checkftions.isString, checkftions.isNull),
     expect(arrOp.difference([1, 2, 3, '4', '5'], [1, '4', 8, 9, 10])).to.deep.equal([2, 3, '5']);
+    var r = arrOp.difference ([1,2,3], [4,5,6]);
+    if (arrOp.contains (r, 4)) throw new Error('Result should not contain 4');
+    if (arrOp.contains (r, 5)) throw new Error('Result should not contain 5');
+    if (arrOp.contains (r, 6)) throw new Error('Result should not contain 6');
+    r = arrOp.difference([1,2],[2,3]);
+    if (arrOp.contains(r, 2)) throw new Error('Result should not contain 2');
   });
@@ -71,2 +77,5 @@ it('union', function () {
   });
+  it('findLastElementWithProperty', function () {
+    expect(arrOp.findLastElementWithProperty([1, {name: 'a', height: 15}, null, {name: 'a', a: 8}], 'name', 'a')).to.deep.equal({name: 'a', a: 8});
+  });
   it('findElementAndIndexWithProperty', function () {
@@ -84,1 +93,66 @@ expect(arrOp.findElementAndIndexWithProperty([1, {name: 'a', height: 15}, null, {name: 'b', a: 8}], 'name', 'b')).to.deep.equal({element:{name: 'b', a: 8}, index: 3});
 });
+
+describe ('Test pivot', function () {
+  var numeric_source = [
+    {"symbol":0,"repetitions":5,"multiplier":1000},
+    {"symbol":0,"repetitions":4,"multiplier":500},
+    {"symbol":0,"repetitions":3,"multiplier":200},
+    {"symbol":2,"repetitions":5,"multiplier":300},
+    {"symbol":2,"repetitions":4,"multiplier":250},
+    {"symbol":3,"repetitions":5,"multiplier":250},
+    {"symbol":3,"repetitions":4,"multiplier":200},
+    {"symbol":4,"repetitions":5,"multiplier":220},
+    {"symbol":4,"repetitions":4,"multiplier":200},
+    {"symbol":4,"repetitions":3,"multiplier":160},
+    {"symbol":5,"repetitions":5,"multiplier":200},
+    {"symbol":5,"repetitions":4,"multiplier":180},
+    {"symbol":5,"repetitions":3,"multiplier":120},
+    {"symbol":6,"repetitions":5,"multiplier":180},
+    {"symbol":6,"repetitions":4,"multiplier":120},
+    {"symbol":6,"repetitions":3,"multiplier":75}];
+
+
+  var pivot = arrOp.pivot, 
+    unpivot = arrOp.unpivot,
+    Pivoter = arrOp.Pivoter;
+
+  it ('Pivot test', function () {
+    var r = pivot(numeric_source, {
+      x_field: 'repetitions', 
+      y_field: 'symbol', 
+      value_field: 'multiplier', 
+      init_empty_rows: false,
+      x_fields_list : ['2','3','4','5'],
+      to_y : function (s) { return parseInt(s); }
+    });
+    expect(r).to.be.an.array;
+    expect(r).to.have.length.of(7);
+    expect(r[1]).to.be.undefined;
+  });
+
+  it ('Pivot test', function () {
+    var p = new Pivoter({
+      x_field: 'repetitions', 
+      y_field: 'symbol', 
+      value_field: 'multiplier', 
+      init_empty_rows: false,
+      x_fields_list : [2,3,4,5],
+      init_empty_rows : true
+    }),
+      r = p.pivot(numeric_source);
+
+    expect(r).to.be.an.array;
+    expect(r).to.have.length.of(7);
+    expect(r[1]).to.deep.equal(p.initializeEmptyPivotRecord());
+
+    var r1 = p.unpivot (r),
+      diff = arrOp.difference(r1, numeric_source, function (i1, i2) {
+        return i1.symbol == i2.symbol && i1.multiplier == i2.multiplier && i1.repetitions == i2.repetitions;
+      });
+
+    expect(diff.filter(function (item) {
+      return !!item.multiplier;
+    })).to.be.empty;
+  });
+
+});

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Improved metrics

Total package byte prevSize

17905

increased by25.48%

Lines of code

422

increased by23.03%

Worsened metrics

Dev dependency count

10

increased by900%

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