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143 lines
2.2 KiB
143 lines
2.2 KiB
3 years ago
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require './_prepare'
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array = mod 'array'
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test 'from', ->
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array.from([1]).should.be.an.instanceOf Array
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array.from([1])[0].should.equal 1
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# test 'clone', ->
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# a = [0, 1, 2]
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# b = array.clone a
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# b[0].should.equal 0
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# b[1].should.equal 1
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# b[0] = 3
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# a[0].should.equal 0
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test 'pluck', ->
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a = [0, 1, 2, 3]
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after = array.pluck a, 1
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after.length.should.equal 3
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after[0].should.equal 0
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after[1].should.equal 2
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after[2].should.equal 3
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after.should.equal a
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test 'pluckMultiple', ->
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a = [0, 1, 2, 3, 4, 5, 6]
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array.pluckMultiple a, [0, 4, 2, 6]
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a.length.should.equal 3
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a[0].should.equal 1
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a[1].should.equal 3
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a[2].should.equal 5
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test 'pluckItem', ->
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a = [0, 1, 2, 3, 2, 4, 2]
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array.pluckItem a, 2
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a[0].should.equal 0
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a[1].should.equal 1
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a[2].should.equal 3
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a[3].should.equal 4
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array.pluckItem([1], 2).length.should.equal 1
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test 'pluckOneItem', ->
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a = [0, 1, 2, 3, 2, 4, 2]
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array.pluckOneItem a, 2
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a[0].should.equal 0
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a[1].should.equal 1
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a[2].should.equal 3
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a[3].should.equal 2
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a[4].should.equal 4
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a[5].should.equal 2
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a = [1, 2]
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array.pluckOneItem a, 1
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a.length.should.equal 1
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a[0].should.equal 2
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array.pluckOneItem([], 1).length.should.equal 0
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array.pluckOneItem([1], 2).length.should.equal 1
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test 'plcukByCallback', ->
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a = [0, 1, 2, 3]
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array.pluckByCallback a, (val, i) ->
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return yes if val is 2
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return no
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a[0].should.equal 0
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a[1].should.equal 1
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a[2].should.equal 3
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test 'injectByCallback', ->
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shouldInject = (valA, valB, toInject) ->
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unless valA?
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return yes if toInject <= valB
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return no
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unless valB?
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return yes if valA <= toInject
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return no
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return yes if valA <= toInject <= valB
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return no
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a = [0.5, 1, 2.5, 2.5, 2.75, 2.75, 3]
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array.injectByCallback a, 0, shouldInject
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a[0].should.equal 0
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a[1].should.equal 0.5
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a[7].should.equal 3
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a = [0.5, 1, 2.5, 2.5, 2.75, 2.75, 3]
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array.injectByCallback a, 2.7, shouldInject
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a[0].should.equal 0.5
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a[4].should.equal 2.7
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a[5].should.equal 2.75
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a[7].should.equal 3
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a = [0.5, 1, 2.5, 2.5, 2.75, 2.75, 3]
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array.injectByCallback a, 3.2, shouldInject
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a[0].should.equal 0.5
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a[4].should.equal 2.75
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a[6].should.equal 3
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a[7].should.equal 3.2
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