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| 1 | var forestCows = [ | |
| 2 | {name: "Legolas", type: "calf", hadCalf: null},
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| 3 | {name: "Gimli", type: "bull", hadCalf: null},
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| 4 | {name: "Arwen", type: "cow", hadCalf: null},
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| 5 | {name: "Galadriel", type: "cow", hadCalf: null},
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| 6 | {name: "Eowyn", type: "cow", hadCalf: "Legolas"}
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| 7 | ]; | |
| 8 | ||
| 9 | Object.prototype.noCalvesYet = function () {
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| 10 | if (this.type == 'cow' && this.hadCalf == null) {
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| 11 | return true; | |
| 12 | } | |
| 13 | }; | |
| 14 | Array.prototype.countForBreeding = function () {
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| 15 | var numToBreed = 0; | |
| 16 | for ( var i = 0; i < this.length; i++) {
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| 17 | if (this[i].noCalvesYet() == true) {
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| 18 | numToBreed++; | |
| 19 | } | |
| 20 | } | |
| 21 | return numToBreed; | |
| 22 | }; | |
| 23 | - | console.log('jak duzo nieocielonych krow', forestCows.countforBreeding()); |
| 23 | + | console.log('powinny byc 2 nieocielone krowy', forestCows.countForBreeding()); |
