zip :: Enumerable |
For those who never encountered a zip function before (i.e. have not worked enough with languages such as Haskell or Ruby ;-)), the exact behavior of this method might be difficult to grasp. Here are a few examples that should clear it up.
Examples
var firstNames = ['Justin', 'Mislav', 'Tobie', 'Christophe']; var lastNames = ['Palmer', 'Maronhic', 'Langel', 'Porteneuve'];
firstNames.zip(lastNames) // -> [['Justin', 'Palmer'], ['Mislav', 'Maronhic'], ['Tobie', 'Langel'], ['Christophe', 'Porteneuve']]
firstNames.zip(lastNames, function(a) { return a.join(' '); }) // -> ['Justin Palmer', 'Mislav Maronhic', 'Tobie Langel', 'Christophe Porteneuve']
var cities = ['Memphis', 'Zagreb', 'Montreal', 'Paris']; firstNames.zip(lastNames, cities, function(p) { return p[0] + ' ' + p[1] + ', ' + p[2]; }) // -> ['Justin Palmer, Memphis', 'Mislav Maronhic, Zagreb', 'Tobie Langel, Montreal', 'Christophe Porteneuve, Paris']
firstNames.zip($R(1, 100), function(a) { return a.reverse().join('. '); }) // -> ['1. Justin', '2. Mislav', '3. Tobie', '4. Christophe']
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Prototype API 1.5.0 - prototypejs.org