I want to delete an object in an array when that object's ID is equal to the ID of the object getting compared. Currently, it only removes the first object in the array
if(this.selectedProducts.length > 0){
for(let x of this.selectedProducts){
if(prod._id === x._id){
this.selectedProducts.splice(x,1); //this is the part where I 'delete' the object
this.appended = false;
}else{
this.appended = true;
}
}
if (this.appended) {
this.selectedProducts.push(prod);
}
}else{
this.selectedProducts.push(prod);
}
this.selectEvent.emit(this.selectedProducts);
}
this.selectedProducts.splice(x,1);
The first parameter to splice must be the index, not the object.
If you're using for...of, you can't get the index easily. So you should use a regular for loop instead. With some additional simplifications, your code would look like this:
for (let i = this.selectedProducts.length - 1; i >= 0; this.selectedProducts.length; i--) {
if (prod._id === this.selectProducts[i]._id) {
this.selectedProducts.splice(i, 1); //this is the part where I 'delete' the object
}
}
this.selectedProducts.push(prod);
It's highly likely that using filter would be better anyway:
this.selectedProducts = this.selectedProducts.filter(x => prod._id !== x._id).concat(prod);
Related
How would i check to see if the ID exists within the localStorage object key array
i am currenty using this and it does not work
if (favorites.includes(theid)) { alert('You Allready Added this Listing'); }
Also how do i pull the indivdual object array apart into ID , image , title
to make varibles
Thank you
Below is the Full Code
function checkfave (theid) {
// get favorites from local storage or empty array
var favorites = JSON.parse(localStorage.getItem('favorites')) || [];
var theimage = $('#theimage'+theid).attr('src');
var thetitle = $('#thetitle'+theid).text();
if (localStorage.getItem('favorites') != null) {
if (favorites.includes(theid)) { alert('You Allready Added this Listing'); }
}
favorites.push({ID:theid,IMAGE:theimage,TITLE:thetitle});
localStorage.setItem('favorites', JSON.stringify(favorites));
alert('You Just Added Listing '+theid+' To Your Favorites');
//Loop through the Favorites List and display in console (HIDDEN)
console.clear();
for (let i = 0; i < favorites.length; i++) {
console.log('ID= '+favorites[i].ID+' IMAGE='+favorites[i].IMAGE+' TITLE='+favorites[i].TITLE);
}//for loop
}
When you parse json using JSON.parse, a javascript object is created. You can access keys in javascript objects by simply using the bracket notation:
object[key] = value
If a key is not defined in an object, when you request the key you will get undefined. undefined is equivalent to false when evaluating an if clause so you can simply use
if (favorites[theid]) { alert('You Allready Added this Listing'); }
I found a solution after the suggestions
My solution was to check within a for loop using favorites[i].ID == theid
The final code is below. i am very sure it could be done another way, But this works for now.
function checkfave (theid) {
var favorites = JSON.parse(localStorage.getItem('favorites')) || [];
var theimage = $('#theimage'+theid).attr('src');
var thetitle = $('#thetitle'+theid).text();
var added=true;
//Loop through the Favorites List and display in console (HIDDEN)
for (let i = 0; i < favorites.length; i++) {
if ( favorites[i].ID == theid ) { alert('You allready Added Listing '+theid+' To Your Favorites'); var added=false; break; } else {var added=true;}
}//for loop
if (added===true) {
favorites.push({ID:theid,IMAGE:theimage,TITLE:thetitle});
localStorage.setItem('favorites', JSON.stringify(favorites));
alert('You Just Added Listing '+theid+' To Your Favorites');
}
}
Currently i have this code on my api call to add a check property (list) (based on api called data "resRole" and "res") which can be used inside of rowSelection to select all the default checked row.
However, now i have another table which I need to do the same thing. Just that instead of using resRole, now I will use resProject. Which i need to first add a key to, before i add a checkProject in "res".
As such, i updated the check to checkRole and intend to put in an additional checkDept (list) in the getAllUserRole's res.data.
Looking at my code, I do not know where I can implement it. It seems like I have to create it inside of the getDataUserRole() function but that seems too messy. And might cause some async issues.
Below is the code:
async function getDataProject() {
let resProject = await getAllProject();
if (resProject) {
setDataSourceProject(resProject.data);
}
}
async function getDataUserRole() {
let resRole = await getAllRoles();
if (resRole) {
//Add a key to every Role
for (var i = 0; i < resRole.data.length; i++) {
resRole.data[i]["key"] = i;
}
setDataSourceRole(resRole.data);
let res = await getAllUserRole();
if (res) {
console.log("getAllUserRole =", res);
for (var i = 0; i < res.data.length; i++) {
//add "check" to every email in the array
res.data[i]["checkRole"] = [];
//loop through all the roleIds array in each email
for (var j = 0; j < res.data[i].roleIds.length; j++) {
//if roleIds is not empty
if (res.data[i].roleIds.length != 0) {
//loop through all Role from getAllRoles and check if any roleIds match the Role. If match push the key of the Role into check
for (var k = 0; k < resRole.data.length; k++) {
if (res.data[i].roleIds[j] == resRole.data[k].id) {
res.data[i]["checkRole"].push(resRole.data[k].key);
}
}
}
}
}
//If groupChange (groupChange is state for storing value of radio button) is null, return untransformed data
if (!(groupChange)) {
setDataSourceUserRole(res.data);
}
//If groupChange has value, call the function with the state value as a parameter
else {
var treeData = groupData(res.data, groupChange)
setDataSourceUserRole(treeData);
}
}
}
}
Instead of Using it inside getDataUserRole(). Use it inside getAllUserRole(). and once you get your result just add additional data with the role and send it back to one function.
If you want to call it separately so then you to depend it one function on another because due to async it will not work properly
I have a logic like below,
getSpecificCell: function(tableObject, rowText, columnCss) {
var ele = element.all(by.repeater(tableObject)).count().then(function(count) {
for (var i = 0; i < count; i++) {
return element(by.repeater(tableObject).row(i)).getText().then(function(txt) {
if (txt.indexOf(rowText) !== -1) {
return element(by.repeater(tableObject).row(i)).element(by.css('[' + columnCss + ']'));
}
});
}
});
return ele;
}
But it is returning the value in first iteration itself.
Is that possible to return the promise inside this kind of for loop or do we have any other solution for this?
First, you don't need to use for loops with an ElementArrayFinder. That's what the each() method is for.
Second, you shouldn't need to loop at all. It sounds like you should be using filter() to get the table cells that match your specification, though I'm not sure what exactly you're trying to accomplish.
var table = element.all(by.repeater(tableObject));
// list is an ElementArrayFinder of all elements that matched the filter
var list = table.filter(function (elem) {
return elem.getText().then(function (text) {
return txt.indexOf(rowText) !== -1
})
});
// do something with list
list.count().then(function (count) {
console.log(count);
});
I have a deeply nested object. I have some records which contain 2 fields that show keys of object properties. I also have select needed to search records by property of object and input to search by key of object. So if I choose option1 and type in input some text, it will be shown the matches in the first field (not second!). And it's similar for second field.
How I try to realize:
I wrote a filter http://plnkr.co/edit/z9DEmfYz2grW9UonLcFK?p=preview
.filter('appFilter', function() {
return function(value, select, input) {
var result = [];
input = input.toLowerCase();
var reg = new RegExp(input,'g');
if (angular.isArray(value)) {
if (input === '' || $scope.isFiltering) {
return value;
} else if (select.value === 'Sequence') {
for (let i = 0; i < value.length; i++) {
if (value[i].Sequence.toLowerCase().match(reg)) {
result.push(value[i]);
}
}
return result;
} else if (select.value === 'ID') {
for (let i = 0; i < value.length; i++) {
if (angular.isArray(value[i].Document)) {
for (let j = 0; j < value[i].Document.length; j++) {
if (value[i].Document[j].ID.toLowerCase().match(reg)) {
result.push(value[i]);
}
}
}
}
return result;
} else {
console.log('error');
}
}
}
})
In controller I set to select's ng-model first option: $scope.selectParameter = $scope.parameter[0];
In debug I set to input parameter some value (123 for example).
So I searching record by first field that contains 123 value. And result finds and pushes the object. But in browser shows anything.
What's the problem? And I can't avoid the empty option with '?' value in my select :(
UPDATED
Nearly solve my problem: http://plnkr.co/edit/z9DEmfYz2grW9UonLcFK?p=preview
It filters by appropriate field and input value. But I faced with another troubles.
When input is empty it doesn't show any record. And second is when I choose second option (ID) filter duplicates some records.
Also I try to switch off filter without clearing the input text by clicking on checkbox.
It's what I want to do but it doesn't work:
else if (input === '' || $scope.isFiltering) {
return value;
}
$scope.isFiltering is ng-model for checkbox input
I tried using angulars default filter. I'm not sure if this is exactly what you want, but maybe it helps a little.
.filter('appFilter', function($filter) {
return function(value, select, input) {
if( !angular.isDefined(input) || input.length < 1) {
return value;
}
// Angulars "filter" lets you pass in a object-structure to search for nested fields.
var query =
(select.value === 'Sequence') ?
{Sequence:input} : {Document:{ID:input}};
return $filter('filter')(value, query);
}
})
http://plnkr.co/edit/Egkw9bUvTPgooc0u2w7C?p=preview
I want to use an array of id, for my little slider-viewer I'm building. I just want to display multiple things using 2 buttons next and previous.
For now I use something like this, using only 2 url id, but I need at least 20 urlid in my viewer :
var urlid1 = 'd3885ca76ac54e958c2855a4fbd3dbf3';
var urlid2 = '3aa64527d1614998b4812bfefbbc896a';
function Next() {
client.init( urlid2 );
}
function Previous() {
client.init( urlid1 ); }
So I've never use an array before, and the things I tried didn't work. Do you know a proper way to do that ?
This seems straight forward enough
var index = 0;
var array = ["url1", "url2", "url3", ...]
function next() {
index++;
if(index > array.length) {
index = 0;
}
client.init(array[index]);
}
function previous() {
index--;
if(index < 0) {
index = array.length;
}
client.init(array[index]);
}
It may be better practice to actually refactor those changes to the index variable to other functions to enable reuse, but this should give you an idea of how it is done.
If client is something that you have wrote then you might want to look at the naming of your functions, init is normally reserved for instantiating the class as new, from your example you seem to be changing a resource so you may want a function name like client.show(); or client.update();
Thank's Varedis.
Final code is :
var index = 0;
var array = ["0e4b4e0789bf41c7b05129a76de0abb0","3aa64527d1614998b4812bfefbbc896a","d3885ca76ac54e958c2855a4fbd3dbf3","8f927023e10c40b9b22d3c13df7c08aa"];
client.init(array[index]);
function next() {
index++;
if(index >= array.length) {
index = 0;
}
client.init(array[index]);
}
function previous() {
index--;
if(index < 0 ) {
index = array.length-1;
}
client.init(array[index]);
}
I had to use " index = array.length-1; " but I can't explain it. You know why ? How index could be 5 if I only have 4 values ?