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updated docs...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2014-01-20 05:40:19 +04:00
parent b131edd95c
commit ee57d68922
2 changed files with 2 additions and 7 deletions
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8
ui/data.js
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@ -611,11 +611,9 @@ function populateSparceGIDList(gids, target, data){
// Remove all the undefined's form a sparse list... // Remove all the undefined's form a sparse list...
// //
function compactSparceList(lst){ function compactSparceList(lst){
// XXX is it normal that .filter(..) skips undefined values? // NOTE: JS arrays are sparse, so all the iterators will return only
// the actually existing items...
return lst.filter(function(){ return true }) return lst.filter(function(){ return true })
//return lst.filter(function(e){
// return e !== undefined
//})
} }
@ -647,8 +645,6 @@ function compactSparceList(lst){
// console.log('T:', Date.now()-t0) // console.log('T:', Date.now()-t0)
// >>> T: 171 // >>> T: 171
// //
// On the down side, this has some memory overhead -- ~ N - n * ref
//
function fastSortGIDsByOrder(gids, data){ function fastSortGIDsByOrder(gids, data){
return compactSparceList(populateSparceGIDList(gids, data)) return compactSparceList(populateSparceGIDList(gids, data))
} }

1
ui/marks.js
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@ -16,7 +16,6 @@
// - trivial sorting // - trivial sorting
// - less maintenance and sync // - less maintenance and sync
// The tradeoff being: // The tradeoff being:
// - more memory usage
// - load/save conversion to keep the json data "packed". // - load/save conversion to keep the json data "packed".
// NOTE: it would appear that JS is designed with sparse lists in mind: // NOTE: it would appear that JS is designed with sparse lists in mind:
// - all iterators (map, filter, forEach, ..) skip undefined values // - all iterators (map, filter, forEach, ..) skip undefined values