koozdra wrote: > I propose the addition of Array.insert(index, insertee [,...]). This > method would would be like Ruby's insert. "Inserts the given values > before the element with the given index" > - http://www.ruby-doc.org/core/classes/Array.html#M002195 > > var a = ['a','b','c','d'] > > a.insert(2, 33) > --> ['a','b',33,'c','d'] > > a.insert(3, 'one', 'two', 'three') > -->['a','b','c','one', 'two', 'three','d'] > > > -- > Dimitri I always have mixed feelings about wrappers for Array#splice. It is a very powerful method that needs no knock off, yet it is very hard to remember. Anyhow, below is an academic stab at implementing your idea. My only question is what to do when the index is too low or too high. I'm not sure what Ruby does; the code below just defaults to 0 when the index is too low or too high.
- Ken Snyder Array.prototype.insert = function() { var args = $A(arguments), index = args.shift(); index = index < 0 ? this[this.length - index] : index; args = [(this[index] === undefined ? 0 : index), 0].concat(args); Array.prototype.splice.apply(this, args); } var a = ['a','b','c','d']; a.insert(2, 33); console.log(a); // ["a", "b", 33, "c", "d"] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Prototype: Core" group. To post to this group, send email to prototype-core@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/prototype-core?hl=en -~----------~----~----~----~------~----~------~--~---