I follow this tutorial to learn how to make a pagination.
https://github.com/feichao/angular-material-paging
I put a json, myData, with items to see how will work. Because I'm a junior programmer eI got blocked to gotoPage().
In my page I changed:
ctrl.total = ctrl.myData.length;
ctrl.currentPage = 1;
ctrl.step = 6;
ctrl.gotoPage = function() {
if(ctrl.total) {
for(var i=0; i < ctrl.total; i++) {
//
}
}
};
but I don't know what to put in this function to show me only, let say 10 items, from my json, per page.
You can see these props and methods in their demo.
Can someone please give ideas how to do this?
You need to calculate the starting amount and then iterate until you hit the max for that page
ctrl.total = ctrl.myData.length; //the total items in your set
ctrl.currentPage = 1;
ctrl.step = 6; //page size? this could be 10 if you want
ctrl.numpages = ctrl.total/ctrl.step; //the total number of items partitioned by page size. convert this to a whole number (the ceiling)
//go to page function here receives the indexes for that page, is that ok?
ctrl.gotoPage = function(Page) { //i modified this to take the page number as an argument
if(Page<= ctrl.numpages && Page>0) //we need to check that the page is valid
{
var startpos = ((Page-1)*(ctrl.step))+1; //this is virtually a skip amount. If its the first page, i = 0, otherwise we start with an increment of the page size. If its the second page, we skip the first 6 results
for(var i=startpos; i < startpos+ctrl.step; i++) {
if(i == ctrl.total) //if its the last page we cut it off early
break;
}
}
};
Related
I am having an issue with the following code when trying to iterate through the items in a form and delete them to make way for new sections/questions. However, I sometimes get the following error "Invalid data updating form". I have worked around this multiple times now, but it keeps coming back up. My current workaround has been to set the section title to "", which made it available to delete. Previously, I didn't need to do this until today.
My question: What is the best way to iterate through the items in a form and delete them from a starting point and not encounter this error?
Reference:
f = the current active form
f_items = all of the items of the form in an array
function clearForm()
{
var clearQ = find(f_items, "Select Appointment Date/Time")+1;
var f_i_len = f.getItems().length-1;
var clear = clearQ;
while(clear <= f_i_len && clear >= clearQ)
{
var item = f.getItems()[clear];
Logger.log(item.getTitle() + " | " + item.getType());
Logger.getLog();
if(item.getType() == "PAGE_BREAK")
{ item.asPageBreakItem().setTitle(""); }
f.deleteItem(clear);
f_i_len = f.getItems().length-1;
clear++;
}
}
function find(src, name)
{
var s_len = src.length;
for(var iter = 0; iter < s_len; iter++)
{
var s = src[iter].getTitle();
if(s == name)
{ return iter; }
}
return -1;
}
The issue I had with this was that the PageBreakItem I was trying to delete was the destination for a conditional answer earlier in the form.
Below is my code where I needed to delete everything after a certain item, which linked to the sections I needed to delete, so I was able to iterate backwards with a while loop.
function getParentNameItem_(form, form_items){
//finds the item with conditional navigation to what you want to delete
var parent_name_item = find_(form_items, "Your Name");
parent_name_item = parent_name_item.asListItem();
//clears all choices which breaks the navigation dependency
//this frees up the items to be deleted
parent_name_item.setChoices([parent_name_item.createChoice("")]);
var size = form_items.length - 1;
//iterates from the end back to the last question I want to keep
while(form_items[size].getTitle() != "Your Name"){
//this can take either the item itself or the index as I've done
form.deleteItem(size);
size--;
}
/*I rebuild the choices for parent_name_item
later based on information from a spreadsheet
which I also use to determine the content of
the PageBreakItems I just deleted*/
return parent_name_item;
}
I found out the issue! It was the clear++ at the end of the loop. With the number of items in the going down with each iteration, the clear++ was causing it to skip over the page break items. Below is my finished code:
function clearForm()
{
var clearQ = find(f_items, "Select Appointment Date")+1;
var f_i_len = f.getItems().length-1;
var clear = clearQ;
while(clear <= f_i_len && clear >= clearQ)
{
var item = f.getItems()[clear];
if(item.getType() == "PAGE_BREAK")
{ item.asPageBreakItem().setTitle(""); }
f.deleteItem(clear); //}
f_i_len = f.getItems().length-1;
}
}
I have a problem with Qualtrics Loop and Merge + Javascript. Basically, Qualtrics reload the previous trial of my loop instead of a new one.
First, here is what I try to do: I have two sets of pictures, at each loop, one picture of each set is randomly picked and displayed (randomly to the left or right side). At the end of the loop, each pictures of the set will be displayed (33 in each set, so 33 trials of the loop), without picking twice the same picture. At each trial, I also display randomly the name of the condition "in relationship" or "friends"
The problem in details:
I have coded something that seems to work quite well, except at some point: It happens that when loading the next trial of the loop, it doesn't display new pictures but instead the one that were presented in the previous trial (and also the same name of condition). This can go for a while presenting me always the same pictures, or this can just be one time.
In any case, this trial which is represented count as a trial, as my loop always ends after 33 trials, whatever if some of these are actually not new pictures presented.
This problem doesn't appear always at the same trial, and can appear several times in a loop.
It also happened that only one picture displayed is new, and the other is the one presented in the previous trial. (I really don't get how this can happen).
I coded the randomisation of picture in an empty question, just before the question where it displays the pictures. This empty question is supposed to not require to press the "next" button. When the trial are correct, this is working well, but when the next trial is going to be one "reloaded" trial, it requires to press the "next" button.
I tried the survey with Firefox and Edge, and the problem is the same.
My javascript code:
In the first question of the survey:
Qualtrics.SurveyEngine.addOnload(function () {
function shuffle(o) { //v1.0
for (var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
};
var FacesM_list = "IM_7U04c3TQlA7dT3D,IM_eE5iBcKfoOblbJH,IM_a3mklzA9E1OuRWl,IM_bQnoSJOGwa0vn9P,IM_5inNCVgPdHHTVSR,IM_bHlurQJWSXDRDFj,IM_3rCr2DIzW2cvqLP,IM_509x1wz7pM6PP0N,IM_3UGdsp02IcCqaSV,IM_eLrY7bwDPiT7apn,IM_3LdlHnBb6tnkBEh,IM_3pY6z6JDgaDvwq1,IM_9HtZxBS79DiOfR3,IM_03c9pDSpcwcqIyF,IM_6WGKJOzUWK4TJat,IM_2rxQPEGO7SEvsY5,IM_9YN3UCUtWEWTfGR,IM_8jZTSUAGJfuVECV,IM_9nQkFhRY2cLIVgN,IM_2abcJA7B79jt30h,IM_cD31N8XPTGliUN7,IM_0eL8iQd4PVdyuQl,IM_cuOoV9gSAe6CWd7,IM_9Nv3X7lWYEsTzsF,IM_5ccXAuuomEEyamp,IM_9mnvThFiNA5U84t,IM_e3UGNNuMdrKH8cl,IM_3aggsd5P9MMlUDr,IM_4ORY6GEMW8CmNPT,IM_50WOBkz8ADTFGHH,IM_3rqtlVBfijYCccZ,IM_3CzDsr0tYv7PH5H,IM_4SmeprjDgOeCl5b"
var FacesF_list = "IM_6fkHDs5f6ItAuk5,IM_0ri9MLjDhHxyonP,IM_bKlHtoAaxnBFlnT,IM_1WUqtBPpdhERpjf,IM_ac0yWos8tAqSMNT,IM_3xCePACn1Lq97tH,IM_6o1ZPLGUM682Au1,IM_babATdN3VtBLIsl,IM_8HSUICLvFvDXaN7,IM_0ebTztq3ML5Zh0V,IM_3lB8j5dhMs8i8ip,IM_0iC0pwDlpOkcTGt,IM_cIRojwU6sx3W7Od,IM_9ZHNbignrAfcThX,IM_8iFXvVcCqk5hemN,IM_6rrwImdl4Nss0u1,IM_6mPEaoIdazwqAWp,IM_b8lrxhsPGcc1HaR,IM_23uYWeF2gYVMsap,IM_6ycfrm5xOlewjFb,IM_7UKValFGc9Kmpp3,IM_8Bbkzsmc7CyMvqt,IM_d5S95FnSgo8j06F,IM_brXT4VUU8QJiRwN,IM_9MEkpgEmOwXhril,IM_6KG9qokOlD16GDH,IM_ellgVnYbtb8ZSbb,IM_eg6qSYMQ56z5JpX,IM_5vfbDNPdZeP1XCZ,IM_cDbOprwCUUSnUZT,IM_cumIGHXOFByV4Pz,IM_0jh2Va4JTfGsQDz,IM_0CGlFRy4dW8lDcF"
var FacesM_order = [];
for (var i = 1; i <= 33; i++) {
FacesM_order.push(i);
}
FacesM_order = shuffle(FacesM_order);
var FacesF_order = [];
for (var i = 1; i <= 33; i++) {
FacesF_order.push(i);
}
FacesF_order = shuffle(FacesF_order);
var nTrial = 0;
Qualtrics.SurveyEngine.setEmbeddedData("FacesM_order", FacesM_order.toString());
Qualtrics.SurveyEngine.setEmbeddedData("FacesF_order", FacesF_order.toString());
Qualtrics.SurveyEngine.setEmbeddedData("FacesF_list", FacesF_list.toString());
Qualtrics.SurveyEngine.setEmbeddedData("FacesM_list", FacesM_list.toString());
Qualtrics.SurveyEngine.setEmbeddedData("nTrial", nTrial.toString());
});
And in the first question of the Block with Loop and Merge:
Qualtrics.SurveyEngine.addOnload(function () {
var nTrial = Number("${e://Field/nTrial}") + 1;
var FacesF_list = "${e://Field/FacesF_list}".split(',');
var FacesM_list = "${e://Field/FacesM_list}".split(',');
var FacesF_order = "${e://Field/FacesF_order}".split(',');
var FacesM_order = "${e://Field/FacesM_order}".split(',');
var FacesF = FacesF_list[FacesF_order[nTrial]];
var FacesM = FacesM_list[FacesM_order[nTrial]];
var rand = Math.random()
if (rand < 0.5) {
var left = FacesF
var right = FacesM
} else {
var left = FacesM
var right = FacesF
}
Qualtrics.SurveyEngine.setEmbeddedData("nTrial", nTrial.toString());
Qualtrics.SurveyEngine.setEmbeddedData("left", left.toString());
Qualtrics.SurveyEngine.setEmbeddedData("right", right.toString());
this.clickNextButton.delay(.00000000000001);
});
Thanks a lot for your help!
I'm writing a script that's going to look through a monthly report and create sheets for each store for a company we do work for and copy data for each to the new sheets. Currently the issue I'm running into is that we have two days of data and 171 lines is taking my script 369.261 seconds to run and it is failing to finish.
function menuItem1() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet1 = ss.getSheetByName("All Stores");
var data = sheet1.getDataRange().getValues();
var CurStore;
var stores = [];
var target_sheet;
var last_row;
var source_range
var target_range;
var first_row = sheet1.getRange("A" + 1 +":I" + 1);
//assign first store number into initial index of array
CurStore = data[1][6].toString();
//add 0 to the string so that all store numbers are four digits.
while (CurStore.length < 4) {CurStore = "0" + CurStore;}
stores[0] = CurStore;
// traverse through every row and add all unique store numbers to the array
for (var row = 2; row <= data.length; row++) {
CurStore = data[row-1][6].toString();
while (CurStore.length < 4) {
CurStore = "0" + CurStore;
}
if (stores.indexOf(CurStore) == -1) {
stores.push(CurStore.toString());
}
}
// sort the store numbers into numerical order
stores.sort();
// traverse through the stores array, creating a sheet for each store, set the master sheet as the active so we can copy values, insert first row (this is for column labels), traverse though every row and when the unique store is found,
// we take the whole row and paste it onto it's newly created sheet
// at the end push a notification to the user letting them know the report is finished.
for (var i = stores.length -1; i >= 0; i--) {
ss.insertSheet(stores[i].toString());
ss.setActiveSheet(sheet1);
target_sheet = ss.getSheetByName(stores[i].toString());
last_row = target_sheet.getLastRow();
target_range = target_sheet.getRange("A"+(last_row+1)+":G"+(last_row+1));
first_row.copyTo(target_range);
for (var row = 2; row <= data.length; row++) {
CurStore = data[row-1][6].toString();
while (CurStore.length < 4) {
CurStore = "0" + CurStore;
}
if (stores[i] == CurStore) {
source_range = sheet1.getRange("A" + row +":I" + row);
last_row = target_sheet.getLastRow();
target_range = target_sheet.getRange("A"+(last_row+1)+":G"+(last_row+1));
source_range.copyTo(target_range);
}
}
for (var j = 1; j <= 9; j++) {
target_sheet.autoResizeColumn(j);
}
}
Browser.msgBox("The report has been finished.");
}
Any help would be greatly appreciated as I'm still relatively new at using this, and I'm sure there are plenty of ways to speed this up, if not, I'll end up finding a way to break down the function to divide up the execution. If need be, I can also provide some sample data if need be.
Thanks in advance.
The problem is calling SpreadsheepApp lib related methods like getRange() in each iteration. As stated here:
Using JavaScript operations within your script is considerably faster
than calling other services. Anything you can accomplish within Google
Apps Script itself will be much faster than making calls that need to
fetch data from Google's servers or an external server, such as
requests to Spreadsheets, Docs, Sites, Translate, UrlFetch, and so on.
Your scripts will run faster if you can find ways to minimize the
calls the scripts make to those services.
I ran into the same situation and, instead of doing something like for(i=0;i<data.length;i++), I ended up dividing the data.length into 3 separate functions and ran them manually each time one of them ended.
Same as you, I had a complex report to automate and this was the only solution.
I've been trying to find an answer to this all morning and can't seem to get it right.
The idea is to have a different array item display when the user clicks the button. The problem is that once they go to a different page, the array resets back to 0 and starts over. I want it to remember where it is in the array and be able to continue even if the user has gone to a different page.
This is what I have so far, but it will break if I switch to a different page before clicking on the button.
function iAmCarousel() {
var describe = document.getElementById("describe");
var describeArray = [];
describeArray[0] = "Front End Web Developer";
describeArray[1] = "Responsive Design nut";
describeArray[2] = "Photoshop nerd";
describeArray[3] = "soon to be husband";
var refreshButton = document.getElementById("refresh");
var index = localStorage.getItem("Index");
describe.innerText = describeArray[index];
refreshButton.onclick = function() {
while(index < describeArray.length) {
index++;
localStorage.setItem("Index", index);
if(index == describeArray.length) {
index = 0;
}
describe.innerText = describeArray[index];
break;
}
}
}
iAmCarousel();
Because "Index" will not be set in localStorage, and calling getIndex() on a non-existant key returns null. You're left with describeArray[null], which won't work (and will give you undefined).
var index = localStorage.getItem("Index");
if (index === null) {
index = 0;
}
describe.innerText = describeArray[index];
... or you can just do var index = localStorage.getItem("Index") || 0; (via short circuit evaluation)
WARNING: CPU Usage goes to 100%, be careful.
Link to the jsFiddle
This script has been written to design a dynamic snake and ladder board. Everytime the page is refreshed a new board is created. Most of the time all of the background images do not appear, and the CPU usage goes up to 100%. But on occasion all of them appear and the CPU usage is normal.
Opera shows some of the background images, Firefox lags and asks me if I wish to stop the script.
I believe that the problem is with these lines of code:
for(var key in origin) // Need to implement check to ensure that two keys do not have the same VALUES!
{
if(origin[key] == random_1 || origin[key] == random_2 || key == random_2) // End points cannot be the same AND starting and end points cannot be the same.
{
valFlag = 1;
}
console.log(key);
}
Your algorithm is very ineffective. When array is almost filled up, you literally do millions of useless iterations until you're in luck and RNG accidentally picks missing number. Rewrite it to:
Generate an array of all possible numbers - from 1 to 99.
When you need a random numbers, generate a random index in current bounds of this array, splice element and this random position, removing it from array and use its value as your desired random number.
If generated numbers don't fit some of your conditions (minDiff?) return them back to array. Do note, that you can still stall in loop forever if everything that is left in array is unable to fit your conditions.
Every value you pull from array in this way is guaranteed to be unique, since you originally filled it with unique numbers and remove them on use.
I've stripped drawing and placed generated numbers into array that you can check in console. Put your drawing back and it should work - numbers are generated instantly now:
var snakes = ['./Images/Snakes/snake1.png','./Images/Snakes/snake2.jpg','./Images/Snakes/snake3.gif','./Images/Snakes/snake4.gif','./Images/Snakes/snake5.gif','./Images/Snakes/snake6.jpg'];
var ladders = ['./Images/Ladders/ladder1.jpg','./Images/Ladders/ladder2.jpg','./Images/Ladders/ladder3.png','./Images/Ladders/ladder4.jpg','./Images/Ladders/ladder5.png'];
function drawTable()
{
// Now generating snakes.
generateRand(snakes,0);
generateRand(ladders,1);
}
var uniqNumbers = []
for(var idx = 1; idx < 100; idx++){ uniqNumbers.push(idx) }
var results = []
function generateRand(arr,flag)
{
var valFlag = 0;
var minDiff = 8; // Minimum difference between start of snake/ladder to its end.
var temp;
for(var i = 0; i< arr.length; ++i) {
var valid = false
// This is the single place it still can hang, through with current size of arrays it is highly unlikely
do {
var random_1 = uniqNumbers.splice(Math.random() * uniqNumbers.length, 1)[0]
var random_2 = uniqNumbers.splice(Math.random() * uniqNumbers.length, 1)[0]
if (Math.abs(random_1 - random_2) < minDiff) {
// return numbers
uniqNumbers.push(random_1)
uniqNumbers.push(random_2)
} else {
valid = true
}
} while (!valid);
if(flag == 0) // Snake
{
if(random_1 < random_2) // Swapping them if the first number is smaller than the second number.
{
var temp = random_1; random_1 = random_2; random_2 = temp
}
}
else // Ladders
{
if(random_1>random_2) // Swapping them if the first number is greater than the second number.
{
var temp = random_1; random_1 = random_2; random_2 = temp
}
}
// Just for debug - look results up on console
results.push([random_1, random_2])
}
}
drawTable()
I had a problem like this using "HighCharts", in a for loop - "browsers" have an in-built functionality to detect dead scripts or infinite loops. So the browsers halts or pop-ups up a message saying not responding. Not sure if you have that symptom!
This was resulted from a "loop" with a large pool of data. I wrote a tutorial on it on CodeProject, you might try it, and it might be your answer.
http://www.codeproject.com/Tips/406739/Preventing-Stop-running-this-script-in-Browsers