Merging and Sorting many lists into one [JavaScript].

[patelxxx]

Guy's,

I'm rewriting a particular function and just need some guidance in understanding this function. I would be greatful if someone can explain each line to me:

function getMergedGroups() {
var mergedGroups = new Array();
for (var i in groups ) {

if (!(i == 'National Projects')) {
merge_loop: for (var j in groups[i]) {
for (var k in mergedGroups ) {
if ( j == k ) {

for ( m = 0;
m < groups[i][j].length; m++) {

mergedGroups[k][mergedGroups[k].length] = groups[i][j][m];
}

[rnd me]

Guy's,

I'm rewriting a particular function and just need some guidance in understanding this function. I would be greatful if someone can explain each line to me:

function getMergedGroups() {
var mergedGroups = new Array(); //create a new list to hold combinded content.
for (var i in groups ) { //examine every index of existing array groups.

if (!(i == 'National Projects')) { //if not a nationalProducts main entry, add the sub group from groups to the new array.
merge_loop: for (var j in groups[i]) {
for (var k in mergedGroups ) {
if ( j == k ) {

for ( m = 0;
m < groups[i][j].length; m++) {

mergedGroups[k][mergedGroups[k].length] = groups[i][j][m]; //add each property of the orig subgroup after the last known combined list.
}

i commented the original above.

[patelxxx]

Thank you very much that was very useful however I need to add a line/code in the code above to 'ACTUALLY' exclude 'National Projects' from the final array.

I don't want 'National Projects' to be included in the combined list, how can this be done.

Thanks in advance.

Ravi

[acoder]

Do you get any errors in the code?

if (i != 'National Projects') {

[patelxxx]

no errors, I added that line for debugging purposes.

[acoder]

Can you give some sample data? I'm assuming that you're using a 3-dimensional array called groups.

[patelxxx]

Thank you Acoder I've resolved this now.

[acoder]

Glad you got it working. What was your solution?