Created
January 17, 2012 03:11
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recursively find all values that pass a truth test
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| foo = {} | |
| bar = {} | |
| baz = {} | |
| o = | |
| z: foo | |
| foo: | |
| a: bar | |
| b: 3 | |
| z: | |
| lah: baz | |
| findAllValuesThat = (root, test) -> | |
| _(root).reduce( (memo, value)-> | |
| _(memo).union(findAllValuesThat(value,test)) | |
| ,if test(root) then [root] else []) | |
| describe "recursing", -> | |
| When -> @result = findAllValuesThat(o, (value) -> value in [foo,bar,baz]) | |
| Then -> expect(@result.length).toBe(3) |
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