Some days ago, Cherniv gave to me this tip:
var name = "Nora";
var names:Array = ["Mary", "Porter", "Nora", "Flint", "Elsa", "Clair",...];
if( names.indexOf( name ) > -1 )
{
// Success
}
Now, I can't check the existence of "Nora" in this array:
var names:Array = [{label:"Mary"}, {label:"Porter"},{label:"Nora"}, ...];
I'll appreciate any help.
Cheers.
UPDATE:
Now it's working. I did use:
for each (var obj:Object in list)
{
if (obj.label == compList.text)
{
updateList = 1;
break;//stops the loop;
}
}
if (updateList == 1)
{
removeCompany();
}
else
{
var nativeAlert:NativeAlert = new NativeAlert();
nativeAlert.alert("You can't update the name!");
}
Is this OK or is an ugly solution?
Thanks
for each( var obj : Object in names )
{
if( obj.label == "Nora" )
{
// Success;
break;//stops the loop;
}
}
I can make it more complex/flexible if you wish.
Related
I have some JavaScript code that gives this error:
Uncaught TypeError: Cannot read property 'value' of undefined
Here is my code:
var i1 = document.getElementById('i1');
var i2 = document.getElementById('i2');
var __i = {'user' : document.getElementsByName("username")[0], 'pass' : document.getElementsByName("password")[0] };
if( __i.user.value.length >= 1 ) { i1.value = ''; } else { i1.value = 'Acc'; }
if( __i.pass.value.length >= 1 ) { i2.value = ''; } else { i2.value = 'Pwd'; }
What does this error mean?
Seems like one of your values, with a property key of 'value' is undefined. Test that i1, i2and __i are defined before executing the if statements:
var i1 = document.getElementById('i1');
var i2 = document.getElementById('i2');
var __i = {'user' : document.getElementsByName("username")[0], 'pass' : document.getElementsByName("password")[0] };
if(i1 && i2 && __i.user && __i.pass)
{
if( __i.user.value.length >= 1 ) { i1.value = ''; } else { i1.value = 'Acc'; }
if( __i.pass.value.length >= 1 ) { i2.value = ''; } else { i2.value = 'Pwd'; }
}
Either document.getElementById('i1'), document.getElementById('i2'), or document.getElementsByName("username")[0] is returning no element. Check, that all elements exist.
Try this, It always works, and you will get NO TypeError:
try{
var i1 = document.getElementById('i1');
var i2 = document.getElementById('i2');
var __i = {'user' : document.getElementsByName("username")[0], 'pass' : document.getElementsByName("password")[0] };
if( __i.user.value.length >= 1 ) { i1.value = ''; } else { i1.value = 'Acc'; }
if( __i.pass.value.length >= 1 ) { i2.value = ''; } else { i2.value = 'Pwd'; }
}catch(e){
if(e){
// If fails, Do something else
}
}
First, you should make sure that document.getElementsByName("username")[0] actually returns an object and not "undefined". You can simply check like
if (typeof document.getElementsByName("username")[0] != 'undefined')
Similarly for the other element password.
The posts here help me a lot on my way to find a solution for the Uncaught TypeError: Cannot read property 'value' of undefined issue.
There are already here many answers which are correct, but what we don't have here is the combination for 2 answers that i think resolve this issue completely.
function myFunction(field, data){
if (typeof document.getElementsByName("+field+")[0] != 'undefined'){
document.getElementsByName("+field+")[0].value=data;
}
}
The difference is that you make a check(if a property is defined or not) and if the check is true then you can try to assign it a value.
You can just create a function to check if the variable exists, else will return a default value :
function isSet(element, defaultVal){
if(typeof element != 'undefined'){
return element;
}
console.log('one missing element');
return defaultVal;
}
And use it in a variable check:
var variable = isSet(variable, 'Default value');
You code looks like automatically generated from other code - you should check that html elements with id=i1 and i2 and name=username and password exists before processing them.
I am having issues checking if the string value in my array is true in a cell.
function myFunction() {
var People = ['Amanda', 'John'];
for (var n in People )
{
if( People[0] == true);
Logger.log("BOOKED");
}
else{
Logger.log("FREE");
}
}
Plenty of issues with the code!
Does this do it ?
function myFunction() {
var People = ['Amanda', 'John'];
for (var n=0;n<People.length;n++) {
if( People[n] ) {
Logger.log("BOOKED");
}
else {
Logger.log("FREE");
}
}
}
I'm not sure if you just want to test for members of the array being present, or if you want to test actual names in the array
In an AngularJS record display (with filters) I have a multiselect array of territories that a user can select from to find out if a certain item is available in a certain territory.
The array returns a list of values such as
['001','010','200']
based on the ID of the territories selected. This is then checked against a JSON list of records which has a JSON value looks like this
territoriesnotavailable: "001, 085, 090"
Each record either has this set to null, or has a list from one to many numbers.
I currently use the following code (customFilter) which works perfectly if you only select ONE value.. it basically makes the item filter out if the territory selected in the multiselect is in the list of territoriesnotavailable
function CustomTerritoryFilter() {
return function(data, query) {
if (query.length === 0) return data;
if (data) return data.filter(function(item) {
for (var i = 0; i < query.length; i++) {
var queryitem = query[i]["id"];
if(item.territoriesnotavailable) {
stringB = item.territoriesnotavailable;
} else {
stringB = 'xxxxxxxx';
}
stringA = queryitem;
if (!(stringB.indexOf( stringA ) > -1)) {
return data;
}
}
});
return [];
};
}
So if I choose only one filter (resulting in a query of ['010'] for example. and this appears in territoriesnoavailable for the record.. it vanishes as expected.. but if I choose any value that is NOT in territoriesnotavailable the item appears again.. i need the record to vanish if ANY selected territory appears in the list regardless of any that do not
function CustomTerritoryFilter() {
return function(data, query) {
if (query.length === 0) return data;
if (data) return data.filter(function(item) {
for (var i = 0; i < query.length; i++) {
var queryitem = query[i]["id"];
if(item.territoriesnotavailable) {
stringB = item.territoriesnotavailable;
} else {
stringB = 'xxxxxxxx';
}
stringA = queryitem;
if (!(stringB.indexOf( stringA ) > -1)) {
return false;
}
}
return true;
});
return [];
};
}
This is the code that I settled on. It basically sets a flag as 1 (show) and then checks each number in the filter.. if there is just one occurance of the number in the list, the flag is set to zero. At the end of the check data is shown if the flaG REMAins as 1
function CustomTerritoryFilter() {
return function(data, query) {
if (query.length === 0) return data;
if (data) return data.filter(function(item) {
var flag = 1;
for (var i = 0; i < query.length; i++) {
var queryitem = query[i]["id"];
if(item.territoriesnotavailable) {
stringB = item.territoriesnotavailable;
} else {
stringB = 'xxxxxxxx';
}
stringA = queryitem;
if (stringB.indexOf( stringA ) > -1) {
flag = 0;
}
}
if(flag === 1) {
return data;
}
});
return [];
};
}
i have this array object:
$scope.datas.labels=['10','20','30']
and also i have a function return an array object like this:
response.labels=['10','20','30','50','100','80']
i created a function which recieve the last result..but what i want is to check if a value in response.labels exists in the $scope.datas.labels i dont want to insert it..to avoid duplicated data in $scope.datas.labels, how i can do that??
i tried this but i didnt work:
$scope.concatToData=function (response) {
if($scope.datas.labels=='') {
$scope.datas.labels = $scope.datas.labels.concat(response.labels);
}else {
var i;
for (i = 0; i < $scope.datas.labels.length; i++) {
alert('qa' + JSON.stringify($scope.datas.labels));
alert('res' + JSON.stringify(response.labels));
if ($scope.datas.labels[i] !== response.labels[i]) {
$scope.datas.labels = $scope.datas.labels.concat(response.labels[i]);
} else {
break;
}
}
}
$scope.datas.datasets = $scope.datas.datasets.concat(response.datasets);
}
Try this it will work as per your expectation and requirement.
var arr1=['10','20','30'];
var arr2=['10','20','30','50','100','80'];
for (var i in arr2) {
if(arr2[i] != arr1[i]) {
arr1.push(arr2[i]);
}
}
document.getElementById('result').innerHTML = arr1;
#result {
font-weight:bold;
}
<div id="result"></div>
Take a look at the lodash library, you'll find it useful, and this will be useful for you too:
let common = _.intersection($scope.datas.labels, response.labels);
if (_.size(common) && _.includes(common, 'myValue')) {
// You have a winner;
// This item (myValue) is in both;
} else {
}
Hope that helps.
You can also try that:
var response = ['foo', 'fabio'];
var labels = ['foo'];
var result = response.filter((value) => {
return labels.filter((rs) => {
return rs == value;
}).length == 0;
});
It will return only the data that does not exists on $scope.datas.labels.
$scope.displayyears = [];
$scope.Joinyear = function(display) {
$scope.yeardisplay = display;
$scope.yeardisp = $scope.displayyears.push($scope.yeardisplay);
$scope.displayyearss = uniq($scope.yeardisp)
}
it throws error like "uniq is undefined"..How we check uniqueness??
Try checking if the yeardisplay is already in the array before you add it
$scope.displayyears = [];
$scope.Joinyear=function(display){
$scope.yeardisplay=display;
if ($scope.displayyears.indexOf(display) == -1) {
$scope.displayyears.push(display);
}
}