experimental/table_decorator.js @@ -35,4 +35,27 @@ Array.prototype.clone = function() { Array.prototype.isUnique = function(value){ var idx = this.indexOf(value); return this.indexOf(value, idx + 1) == -1; +}; + +/** + * Array#sliceNonUnique -> Array + * + * var arr = [1,1,2,3,3,4,1,2,2,5,5,5]; + * arr.sliceRepeating(); + * + * // produces + * [[1, 1, 1], [2, 2, 2], [3, 3], [5, 5, 5]] + * + **/ +Array.prototype.sliceNonUnique = function() { + var result = [], clone = this.sort(); + for (var i=0, l=clone.length; i<l; i++) { + if (clone[i] === clone[i+1]) { + var temp = []; + while (clone[i] === clone[i+1]) { temp.push(clone[i]); i++; } + if (clone[i] === clone[i-1]) { temp.push(clone[i]); } + result.push(temp); + } + } + return result; }; \ No newline at end of file array.extensions.js 430b5dab60ce35179becba2cc36a37a6d3a636eb kangax juriyzaytsev@iBook.local http://github.com/kangax/protolicious/commit/8673325258b547d0b02ade5e837e864a45a64a2d 8673325258b547d0b02ade5e837e864a45a64a2d 2008-06-23T18:58:38-07:00 2008-06-23T18:58:38-07:00 add Array#sliceNonUnique and experimental TableDecorator cec93658a4f6b7ca12de16944bdcee54ed314cc6 kangax juriyzaytsev@iBook.local