I want to Loop through the array of integers and want to remove the items in the TLToProcess list which i have stored in the array of integers
here is the code
I want to remove only the selected in the list integer
iSize.add(TLToProcess.size());
if(TLToProcess[i].Scan_In1__c==null)
{
if(TLToProcess[i].typew__c=='Pending')
{
TLForMissingHHhh.add(TLToProcess[i]);
}
}
else if ( c[i].Scan_In1__c!=null)
{
if (TLToProcess[i].typew__c=='Pending' )
{
TLToProcess[i].typew__c='Processed';
}
}
}
Now i want to remove record 1 by 1 from TLToProcess using
remove() can any body tell me how to do it.
Thanks
Anu
Not sure I understand your problem, but if what you're trying to avoid is modifying your List of integers inside a loop and getting this error: {"Collection was modified; enumeration operation may not execute."} you can create a copy of your List(.ToList()) and use it to iterate, and this way you can call Remove() safely.
List<Int32> arr = new List<Int32>();
for (int i = 0; i < 10; i++)
{
arr.Add(i);
}
foreach(var o in arr.ToList())
{
arr.Remove(o);
}
Is that the intent?
Related
I'm having some trouble iterating my array of booleans. The problem is that I have four positions that should activate my if condition but it only detects one. I think it's because I'm iterating through in a bad way. There is my code so you can understand my problem:
Declaration of arrays:
var columns = BooleanArray(Constants.WIDTH){ false }
var lines = BooleanArray(Constants.HEIGHT){false}
Here I'm only checking on which positions shall I enable the true state and as you can see, I'm iterating in deep into the matrix:
fun addNewIPiece(positionX:Int,positionY:Int){
val matrixPositionX = positionX/Constants.WIDTH_BLOCK
val matrixPositionY = positionY/Constants.HEIGHT_BLOCK
columns[matrixPositionX] = true
for(i in 0..4){
lines[matrixPositionY+i] = true
}
}
Here I'm iterating through both columns and lines and drawing some blocks but somewhat, I'm only getting one coincidence(check below the code):
fun drawMap(monoBlock: MonoBlock,canvas: Canvas){
for(columnsList in columns ){
for (linesList in lines){
if (columnsList and linesList) {
Log.d("CoincidenceX",columns.indexOf(columnsList).toString())
Log.d("CoincidenceY",lines.indexOf(linesList).toString()) monoBlock.draw(canvas,columns.indexOf(columnsList),lines.indexOf(linesList))
}
}
}
}
And here is the debug:
D/CoincidenceY: 87
D/CoincidenceX: 20
D/CoincidenceY: 87
D/CoincidenceX: 20
D/CoincidenceY: 87 ...........
So anyone can figure out where my mistake come from? I think its in the way that I iterate but I'm not sure.
Thanks in advance, ask if you have any question.
The data type of the variables columnsList and linesList (totally inappropriate names) is Boolean which is a primitive data type and they have values true or false. So when you use indexOf() it returns the index of the first item that matches the value of columnsList or linesList and not the index of the item you are currently iterating.
Since you are interested in the indexes, use an indexed loop :
for (i in columns.indices) {
for (j in lines.indices) {
if (columns[i] && lines[j]) {
Log.d("CoincidenceX", i.toString())
Log.d("CoincidenceY", j.toString())
}
}
}
I have got two lists on a google spreadsheet: 'Existing Companies' and 'New Companies'.
I would like to compare the two and find out which unique entries in 'New Companies' do not exist in 'Existing Companies', get those entries and eliminate from 'New Companies' all other entries.
I have made the following script to do it:
function grabNewCompanies() {
// grab existing companies list from sheet into an array
var sh = SpreadsheetApp.openById("sheetID").getSheetByName("sheetName")
var row = sh.getDataRange().getLastRow()
var existingCompanies = sh.getRange(2,1,row - 1,1).getValues()
Logger.log(existingCompanies)
//grab new companies added
var sh = SpreadsheetApp.openById("sheetID").getSheetByName("sheetName")
var row = sh.getDataRange().getLastRow()
var newCompanies = sh.getRange(2,4,row - 1, 1).getValues()
Logger.log(newCompanies)
var array = [];
for(i=0; i<newCompanies.length; i++) {
for(j=0; j<existingCompanies.length; j++) {
if(newCompanies[i][0] !== existingCompanies[j][0]) {
array.push([newCompanies[i][0]]);
}
Logger.log(array)
}
I have ran this script but it has failed.
The two arrays (existingCompanies and newCompanies) are returned correctly.
However, the comparison between the two does not seem to be working: it always returns the first element of the newCompanies array, regardless of whether it exists in existingCompanies.
Also, I am unsure about how to ensure that the values pushed into array are not duplicated if newCompanies contains more than one entry which does not exist in existingCompanies.
Thank you.
You want to retrieve the difference elements between existingCompanies and newCompanies. If my understand for your question is correct, how about this modification? I think that there are several solutions for your situation. So please think of this as one of them.
Modification points:
In the case that your script is modified, it picks up an element from newCompanies and it checks whether that is included in existingCompanies.
If that picked element is not included in existingCompanies, the element is pushed to array. In this modification, I used true and false for checking this.
This flow is repeated until all elements in newCompanies are checked.
Modified script 1:
When your script is modified, how about this?
From:
var array = [];
for(i=0; i<newCompanies.length; i++) {
for(j=0; j<existingCompanies.length; j++) {
if(newCompanies[i][0] !== existingCompanies[j][0]) {
array.push([newCompanies[i][0]]);
}
}
}
To:
var array = [];
for(i=0; i<newCompanies.length; i++) {
var temp = false; // Added
for(j=0; j<existingCompanies.length; j++) {
if(newCompanies[i][0] === existingCompanies[j][0]) { // Modified
temp = true; // Added
break; // Added
}
}
if (!temp) array.push([newCompanies[i][0]]); // Modified
}
Logger.log(array)
Modified script 2:
As other patterns, how about the following 2 samples? The process cost of these scripts are lower than that of the script using for loop.
var array = newCompanies.filter(function(e) {return existingCompanies.filter(function(f) {return f[0] == e[0]}).length == 0});
Logger.log(array)
or
var array = newCompanies.filter(function(e) {return !existingCompanies.some(function(f) {return f[0] == e[0]})});
Logger.log(array)
If I misunderstand your question, please tell me. I would like to modify it.
I want to Put two arrays value in LinkedHashMap as key-value.
Here is the snippet that I'm using:
String[] s = answer.split("\\,");
String[] ss = aa.split("\\,");
System.out.println(ss.length); -->prints 3
System.out.println(s.length); -->prints 3
What I want is to put s values as Key and ss values as Value in HashMap.
I'm trying to write code.
for(int i=0;i<s.length;i++){
for(int j= 0;j<ss.length;j++){
if(s[i].length()==s[j].length()){
testMap.put(s[i], ss[j]);
}
}
}
But unable to Put into Map. What I've done wrong?
And I'm using LinkedHashMap to preserve the order of Insertion.
Here is the solution:
for(int i=0;i<s.length;i++){
testMap.put(s[i], ss[i]);
}
I just have to change my loop condition to this. Instead of using two for loops.
Thanks everybody.
Use this code, It will add accordingly
String answer = "ID,NAME,VALUES";
String aa = "1,KLAXXON,ROMEO";
String[] s = answer.split("\\,");
String[] ss = aa.split("\\,");
for (int i = 0; i < s.length; i++) {
testMap.put(s[i], ss[i]);
}
Output:
{ID=1, NAME=KLAXXON, VALUES=ROMEO}
I have a store and an array. I want to remove records from the store if that record's value matches with values in the array. Following is is the code I am trying but it's not working. Can anyone suggest the correct way?
'store' is the actual store and 'filterItems' is the array of records I want to remove from 'store'.
store.each(function (record) {
for (var i = 0; i < filterItems.length; i++) {
if (record.get('ItemId') === _filterItems[i].get('ItemId')) {
itemIndex = store.data.indexOf(record);
store.removeAt(itemIndex );
}
}
});
Not sure about your code because i dont know all variables. Though its recommended to use the store.getRange() fn and iterate the array via for loop. Its better for performance.
var storeItems = store.getRange(),
i = 0;
for(; i<storeItems.length; i++){
if(Ext.Array.contains(filterItemIds, storeItems[i].get('id')))
store.remove(store.getById(storeItems[i].get('id')));
}
Here is an example which i tried right now and it works well.
https://fiddle.sencha.com/#fiddle/8r2
Try using the remove method of the store (docs)
store.remove(filterItems);
var indexes = [], i = 0;
dataviewStore.each(function(item, index){
if(item) {
if(item.data.columnId == columnId) {
indexes[i++] = index;
}
}
}, this);
dataviewStore.remove(indexes);
this is my example if your record is matches with the value then store the index of that item after storing indexes of all the items and remove them.
Otherwise you have to use for loop and remove them from end of the array.
Here's what I'm currently doing/trying to do to accomplish my goal. But it is not removing the "row" the way I would like it too.
So, I'm making an object, then pushing it into an array. And the adding to the array part works fine and just as I expect.
var nearProfileInfoObj:Object = new Object();
nearProfileInfoObj.type = "userInfo";
nearProfileInfoObj.dowhat = "add";
nearProfileInfoObj.userid = netConnection.nearID;
nearProfileInfoObj.username = username_input_txt.text;
nearProfileInfoObj.sex = sex_input_txt.selectedItem.toString();
nearProfileInfoObj.age = age_input_txt.selectedItem;
nearProfileInfoObj.location = location_input_txt.text;
nearProfileInfoObj.headline = headline_input_txt.text;
theArray.push(nearProfileInfoObj);
So after that later on I need to be able to remove that object from the array, and it's not working the way I'm expecting. I want to take a variable whoLeft and capture their ID and then look in the array for that particular ID in the userid part of the object and if its there DELETE that whole "row".
I know you can do a filter with an array collection but that doesnt actually delete it. I need to delete it because I may be adding the same value again later on.
whoLeft = theiruserIDVariable;
theArray.filter(userLeaving);
public function userLeaving(element:*, index:int, arr:Array):Boolean
{
if (element.userid == whoLeft)
{
return false;
}
else
{
return true;
}
}
But this doesnt seem to be deleting the whole row like it implies. Does anyone know what i'm doing wrong?
Instead of modifying the original array, the new filtered array is returned by the filter method. So you need to assign the returned array to theArray.
Try this
theArray = theArray.filter(userLeaving);
EDIT This turned out to be slower than for loop:
An alternative to the hand coded loop could be something like this:
theArray.every(searchAndDestroy);
public function searchAndDestroy(element:*, index:int, arr:Array):Boolean
{
if (element.userid == whoLeft)
{
arr.splice(index,1);
return false;
}
return true;
}
As far as I know, every() terminates the first time the test function returns false. So the question is: for a big list, which is faster, the for loop or the loop that every() does with the overhead of the test function call.
EDIT #2 But this was faster than a for loop for a test I ran on an array of a million Points:
for each(var element:Object in theArray)
{
if (element.userid==whoLeft)
{
theArray.splice(theArray.indexOf(element),1);
break;
}
}
I think this is what you're looking for:
for(var i:uint = 0, len:uint = theArray.length; i<len; i++)
{
if(thisArray[i].id == whoLeft.id)
{
thisArray.splice(i, 1);
break;
}
}
However, do you really need it in an Array because you could always use a Dictionary which would mean accessing it by id which would be a lot simpler to remove.