Everything works except the display function . In this display function i am trying to access the field Name from the resultSet but it is not working.
function succ(result)
{
alert("connected");
var a = result.invocationResult.resultSet[1].Name;
$("#fetcharr").val(a);
alert("connectedlll");
display(result.invocationResult.resultSet);
alert("the end");
}
Display function is:
function display(items)
{
alert("heelo");
for(var j in items )
{
var a = j.Name;
alert(a);
}
}
Why the need for two functions here?
Anyway, to loop through the resultSet you can use a for loop like so:
function succ(result) {
for (var i = 0; i < result.invocationResult.resultSet.length; i++) {
display(result.invocationResult.resultSet[i]);
// do something with the current result, for example:
$("#someIdInTheHTML").append("<p>Name: " + result[i].name + "</p>");
};
}
You will want to search through the "worklight-adapters" tag, as this has been asked many times in various forms.
Related
I have an .ascx containing javascript and div elements.
I want insert a log statement inside a function for troubleshooting.
May I know how can I achieve it?
Below is my code snippet:
function SaveGroupCheck() {
var isValid = true;
var haveError = false;
var schedule = document.getElementById("<%=ddlExecutionSchedule.ClientID%>").value;
//INSERT LOGGING HERE - Value of 'schedule'//
if (schedule == "Weekly")
{
var xday = document.getElementById("<%=chkSelectDay.ClientID%>");
var checkbox = xday.getElementsByTagName("input");
var counter = 0;
for (var i = 0; i < checkbox.length; i++) {
if (checkbox[i].checked) {
counter++;
}
}
//INSERT LOGGING HERE - Value of 'counter'//
if (counter < 1) {
$("#chkSelectDay").addClass('errorbox');
$("#divSelectDay").addClass('has-error has-feedback');
$("#lblSelectDay").addClass('has-error has-feedback');
haveError = true;
}
else {
$("#chkSelectDay").removeClass('errorbox');
$("#divSelectDay").removeClass('has-error has-feedback');
$("#lblSelectDay").removeClass('has-error has-feedback');
}
}
//INSERT LOGGING HERE - Value of 'haveError'//
Below is a log which I attempted but failed. I will use a try-catch if the error info needs to be provided.
var logFileName = ConfigurationManager.AppSettings["logpath"] + "Debug_" + DateTime.Now.ToString("ddMMyyyy_hhmmss") + ".log";
var itemPerPage = document.getElementById("<%=txtItemsPerPage.ClientID%>").value;
Log(DateTime.Now.ToString("ddMMyyyy_hhmmss") + " - itemPerPage = " + itemPerPage);
*logpath configured in app.config.
Thank you for your time.
To log any javascript variables you can use :
console.log("Hello I'm the variable value");
and open chrome console to see the value.
If you want to send variable value to server you must go to ajax call by calling server method for logging.
I hope that I understood your question.
I have 5 content_script.js (1-5) and each contains its own function inside each of these content scripts. However, I ran into an issue where I need to use a variable or function from another content script, it throws me an error saying variable/function undefined. So I have to redeclare the variable again in the same script to be able to use it.
Is there a way to pass variables and functions from one content script to another? In this case I want to use the setSelectedValue() function and objSelect variable.
content_script:
function clickUpdate() {
var updateArray = document.getElementsByClassName("updateButton");
var saveArray = document.getElementsByClassName("saveButton");
var updateArraySelector = document.querySelectorAll(".updateButton");
[].slice.call(updateArray).forEach(function(item) {
if (saveArray.length == 0)
setSelectedValue(objSelect, "P"); //it doesnt recognize this function from my other content_script
console.log("object select is: " + objSelect); //it also doesnt recongize this variable
});
console.log("this is the update array legnth: " + updateArray.length);
console.log("this is the save array legnth: " + saveArray.length);
console.log("this is the update array selector: " + updateArraySelector);
}
clickUpdate();
content_script1:
var objSelect = document.querySelectorAll('.engpf')
//Set selected
setSelectedValue(objSelect, "P");
function setSelectedValue(selectObj, valueToSet) {
for (var i=0; i<selectObj.length; i++) {
for(var j=0; j<selectObj[i].options.length; j++){
if (selectObj[i].options[j].value == valueToSet) {
selectObj[i].options[j].selected = true;
}
}
}
}
I am making a website based dashboard. one of the functionalities is showing the locations of all customers. when i'm placing these on the map i can't seem to get the pop-up right.
function getCoordinates(locationList) {
for (var i = 0; i < locationList.length; i++) {
if (locationList[i].city != null) {
$http.get('https://api.tiles.mapbox.com/geocoding/v5/mapbox.places/' + locationList[i].city + '.json?access_token=' + access_token)
.success(
function (data) {
var marker = L.marker([data.features[0].center[1], data.features[0].center[0]]).addTo(mymap);
marker.bindPopup(locationList[i].customerName);
}
);
}
}
}
When I use this code the pop-up will only contain the last customer's name in every pop-up.does someone know how to make sure that the attributes of the correct user are used?
That's a closure problem, to fix it you have to move your $http call to a new function like this.
function httpCall(locationList,i){
$http.get('https://api.tiles.mapbox.com/geocoding/v5/mapbox.places/' + locationList[i].city + '.json?access_token=' + access_token)
.success(
function (data) {
var marker = L.marker([data.features[0].center[1], data.features[0].center[0]]).addTo(mymap);
marker.bindPopup(locationList[i].customerName);
}
);
}
After for loop i is always locationList.length - 1. Try to add IIFE with local i. For example you can solve the problem with replacing for loop with locationList.forEach
This is Infamous Loop Problem. Since you are just defining the function and not actually executing it when the for loop ends all the functions will have the same values for index i.
Solution: Is to assign the value to a variable and use this variable inside you success callback.
for (var i = 0; i < locationList.length; i++) {
if (locationList[i].city != null) {
var currLocation = locationList[i]; // assign the data to a variable
$http.get('https://api.tiles.mapbox.com/geocoding/v5/mapbox.places/' + locationList[i].city + '.json?access_token=' + access_token)
.success(
function (data) {
var marker = L.marker([data.features[0].center[1], data.features[0].center[0]]).addTo(mymap);
marker.bindPopup(currLocation.customerName); // use the variable instead of the indexed lookup
}
);
}
}
Let me know if this helps.
It's a scope problem. Your i is updated and later, when you will click on the popup, it will read the last value of i.
You should put your conditional in the for a function which take in parameter the i :
function getCoordinates(locationList) {
for (var i = 0; i < locationList.length; i++) {
conditionalGet(i);
}
function conditionalGet(i) {
if (locationList[i].city != null) {
$http.get('https://api.tiles.mapbox.com/geocoding/v5/mapbox.places/' + locationList[i].city + '.json?access_token=' + access_token)
.success(function (data) {
var marker = L.marker([data.features[0].center[1], data.features[0].center[0]]).addTo(mymap);
marker.bindPopup(locationList[i].customerName);
});
}
}
}
Using the script below I'm attempting to create an object called temptagarray which gets populated with all the tags on a Tumblr weblog and their frequency. So it should end up looking like this:
{'performance': 10, 'installation': 5}
I know the object is being created and it looks correct (I can print it out in each loop) but I can't figure out how to use it after/outside the function i.e. at the bottom of the script where I attempt to document.write() it out. Is this a global/local variable issue, a return issue or do I need to address it in some way?
<script type="text/javascript">
var temptagarray = {};
var tags;
var tag;
function loadPosts () {
var key = "api_key=9I4rZAYQCbU1o5TSMZuyrlvXiQsNxKBicCJxNK5OKZ6G9pgdim";
var api = "https://api.tumblr.com/v2/blog/garrettlynch.tumblr.com/";
var retrieve_more = function (offset) {
$.getJSON(api + "posts?callback=?&filter=image&limit=20&offset=" + offset + "&" + key,function(data) {
//for each item (post) in the response
$.each(data.response.posts, function(i, item) {
//pull out the posts tags
tags = item['tags'];
//loop through the tags
for (i = 0; i < tags.length; i++)
{
tag = tags[i];
//if the tag already exists in the tag array
if (temptagarray[tag])
{
temptagarray[tag] = temptagarray[tag] + 1;
}
else
{
temptagarray[tag] = 1;
}
}
});
if (data.response.posts.length == 20) {
retrieve_more(offset + 20);
}
});
};
retrieve_more(0);
}
loadPosts();
document.write(JSON.stringify(temptagarray));
</script>
Thanks in advance
Garrett
Replace this:
if (data.response.posts.length == 20) {
retrieve_more(offset + 20);
}
...with this:
if (data.response.posts.length == 20) {
retrieve_more(offset + 20);
} else {
document.write(JSON.stringify(temptagarray));
}
The problem you're having is that, despite your document.write(...) command being located below the ajax call in your code, the ajax call is asynchronous and thus the callback will be invoked asynchronously as well. Basically, document.write(...) is being invoked long before you've had a chance to interact with the temptagarray variable in the ajax callback.
First things first - AJAX is Async Asynchronous.
So the code block does not wait for the previous instruction to be completed before it executes the next line.
So your document.writeline would have already been executed by the time the response comes back.
Try printing that info in the success call back after the if block and you would indeed see the response.
thanks for the replies. Below is what I have now as a workable solution as the result is going to call another function anyway. Reading a little bit more I'm wondering if I should be using a callback - is it better?
<script type="text/javascript">
//load posts from a Tumblr weblog
function loadPosts () {
//api key and weblog address
var key = "api_key=9I4rZAYQCbU1o5TSMZuyrlvXiQsNxKBicCJxNK5OKZ6G9pgdim";
var api = "https://api.tumblr.com/v2/blog/garrettlynch.tumblr.com/";
//tags object
var temptagarray = {};
//all tags and each tag
var tags;
var tag;
//looping function to keep retrieving posts until all are retrieved
var retrieve_more = function (offset) {
$.getJSON(api + "posts?callback=?&filter=image&limit=20&offset=" + offset + "&" + key,function(data) {
//for each item (post) in the response
$.each(data.response.posts, function(i, item) {
//pull out the posts tags
tags = item['tags'];
//loop through the tags
for (i = 0; i < tags.length; i++)
{
//pull out each tag
tag = tags[i];
//if the tag already exists in the tag array
if (temptagarray[tag])
{
//add 1 to its count
temptagarray[tag] = temptagarray[tag] + 1;
}
else
{
//set its count to 1
temptagarray[tag] = 1;
}
}
//to test object as it gets added to
//$("#Posts ul").append('<li>' + JSON.stringify(item, ['tags']) + '</li>')
});
//if the number of posts is more than 20
if (data.response.posts.length == 20)
{
//retrieve the next 20
retrieve_more(offset + 20);
}
else
{
//call the show result function
showresult(temptagarray);
}
});
};
//stop retrieving posts
retrieve_more(0);
}
loadPosts();
function showresult(tagarray)
{
$("#Posts ul").append('<li>' + JSON.stringify(tagarray) + '</li>');
//document.write(JSON.stringify(tagarray));
}
</script>
I have the following code in one of my function. I have an array 'arr' which is working correctly when used inside if{}. But its now working when using outside it. Can anyone point me what I am missing.
function runQueries()
{
var arr = new Array;
db.transaction (function (transaction)
{
var sql = "SELECT * FROM incomecategory";
transaction.executeSql (sql, undefined,
function (transaction, result)
{
if (result.rows.length)
{
for (var i = 0; i < result.rows.length; i++)
{
var row = result.rows.item (i);
var categoryname = row.categoryname;
arr[i] = categoryname;
}
//alert(arr[0]); // It works
}
else
{
}
}, error);
});
//alert (arr[0]); // It doesn't work.
}
It's asynchronous behavior. Your alert at the bottom of the code is probably executed before the database query.