19 lines
721 B
JavaScript
19 lines
721 B
JavaScript
var a = { id: 10, name: 'test1' };
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var b = { id: 15, name: 'test2' };
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var c = { id: 20, name: 'test3' };
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return new UnitTest('find', function() { return typeof Array.prototype.find === 'function'; })
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.add('simple', function() {
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return [ a, b, c ].find(function (v) { return v.id === 15; }) === b;
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})
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.add('sparse', function() {
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var n = 0;
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[ a, b,,,, c ].find(function (v) { n++; return v === undefined; });
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return n === 3;
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})
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.add('no occurence', function() {
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return [ a, b, c ].find(function (v) { return v.id === 30 }) === undefined;
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})
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.add('pass this', function() {
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return [ a, b ].find(function (v) { return this === c; }, c) === a;
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}) |