Angular check if element exists stack overflow I need that because I need to implement additional columns that will show me values for that ScopeOfWork's elements (name,type. These will be displayed on the profile section in Editor's sidebar and your public profile. visibilityOf(OversightAutomationOR. Thanks for contributing an answer to Stack Overflow! Check if an element exists in a object. In my code below, i can only check the first array but not the others. Oct 17, 2017 · Welcome to stackoverflow, it may be helpful to post a little more of the code for that controller, as it's a little difficult to see exactly what you're doing and therefore resolve your issue! Apr 30, 2018 · Okay, so here is another approach. NEW | APPROVED ----- ONE [X] ONE TWO [ ] THREE THREE [X] I have a checkbox that when clicked will disable the checkbox so I can't click it again, and add a class to the parent list element. count() > 0 When using ngIf, angular completely removes the node from markup. debounceTime(), which only calls the method when the time past after the last change-event is Mar 1, 2017 · You need to specify which object you're calling getElementById from. I tried it like this: Thanks so much. wait(until. usableDeposits[] javascript Share Jan 27, 2011 · You can do this using a combination of the Element. I have tried using angular. 1. querySelectorAll('. Jul 25, 2017 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; How to check if element with ID exists in AngularJS. value on any element directly. I want to check in Angular if object exists inside array of objects or not. Thus checking the checkbox. If it does I do not want it added again, if it doesn't exist then add the values. The built-in @if supports referencing of expression results to keep a solution for common coding patterns: New More user's social links (Dev. elList. That's as simple as using any of the browser's selecting method, and checking it for a truthy value (generally). Jan 23, 2019 · If you really want to check if an element has the overflow-y: auto; style applied, according to the jQuery code, they use window. For example: Controller: @Component({selector: 'someCmp', templateUrl: 'someCmp. Sep 12, 2013 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Nov 9, 2016 · Thanks for contributing an answer to Stack Overflow! Check if an element exists in a object. profileForm. log(this. The profile picture name is an unique number and the extensions can be of following types (jpg, jpeg, png, Stack Overflow for Teams Where developers expression-to-check-if-#element-b-exists needs to bind on something. Check if an object exist in an array in Angular 6. exist') nor . My object is : let objVenIns = { 'CntNumber': 4, 'CntMixer': 2, Aug 22, 2018 · While using ng-for loop, I want to add class to item, only if the id of the item exists in some other objects list. There's several ways to do it, depending on your intent. html'}) class SomeCmp implements AfterViewInit { @ViewChildren(el) elList: QueryList<ElementRef>; public element: ElementRef; ngAfterViewInit() { this. As a consequence, I used this successfully, which does not wrap the dynamic content into additional elements/tags: Dec 11, 2018 · Thanks for contributing an answer to Stack Overflow! Check if an element exists in a object. Here is what I have so far: Aug 27, 2015 · Learn how to check if a value exists in an array within an Angular template. Progress has a value of type number. length - 1 // Get id at index // Check if exists in questions and not asked in askedQuestions Another way to do it is to create a single array of question objects, where the objects have the question and their state. I want to write a test to check if an element exists on the page after I click on it. Mar 4, 2014 · I'm trying to pass two text field values into and array using AngularJS, but I also want to check if the first value being passed already exists in the array. To learn more, see our tips on writing great If you flip the boolean value to true and in the next line of code you try to get a reference to the component or DOM element controlled by NgIf well, that component or DOM element doesn't exist yet. hasClass('my-class'); angular. event')[0]; Jun 4, 2012 · Planned maintenance impacting Stack Overflow and all Stack Exchange sites is scheduled for Tuesday, April 1, 2025 from 13:30 UTC to 21:30 UTC (9:30am to 5:30pm ET). You also can't just call . The first result is simply the first element of the array - the elements are all of the same type/format, which is string. function _isContains(json, value) { let contains = false; Object. el. What is the best way to attach to these elements and detect when a particalr css class is added to a component template child element? Say i have this component: Apr 5, 2017 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Jul 30, 2014 · I have a set of radio buttons, when a radio button is selected the element is pushed into an object. So you need to check that this element not exists. Apr 25, 2016 · I want to display a user profile image if it exists; else show default font awesome icon. Oct 20, 2014 · Stack Overflow for Teams Where developers & technologists share private Check if an element exists in a object angularjs: check if value exists in array of Jan 19, 2018 · Angular Firestore: Check if data exist and update a global variable based on that 0 Angular Firestore display a button depending of a returned boolean which checks if an Firestore document exist May 14, 2018 · How to check vm. To learn more, see our tips on writing great Apr 29, 2016 · I have two sibling elements. To be more precise, it's just not rendered Jul 2, 2018 · The indexOf() method returns the first index at which a given element can be found in the array, or -1 if it is not present. Sep 16, 2015 · Currently, I'm using the forEach()-method of angular to check the new value with the array of objects. So, for general case, you would want to have boolean property on your component and put that to *ngIf. My function should look like this : checkRoleExistence(role){ // if role exists on one of the objects return true // else returne false } to use it i would do s. length', 0) worked - even worse: If the element I was querying was actually there right from the get-go, both asserts still returned true. Jul 19, 2018 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 18. controls[key] Jan 19, 2015 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand I'm ok with the function that Denys Séguret posted, it looks elegant and I like it. Tie the checked class to some model, and tie the d-table-cell's class to the same model. Making statements based on opinion; back them up with references or personal experience. I just tweaked a little bit that function since if the class specified in the parameter, is not present in the whole DOM, it fails when the recursion reaches the document object because is true that we control if the element has the parent node (in the last line, and when the document is the element the parent Feb 13, 2020 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; check DOM element exist in js / angularjs. Jan 1, 2010 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. I would like to check in a template if an element in a loop is a specific ElementRef. Dec 12, 2016 · Practically you can use hasClass method with angular element: angular. data = ["cat", "dog"]; I want to check, in my html file, if cat exists in the object this. Provide details and share your research! But avoid …. They also have a lot of code with a temporary div with a weird position ( position:absolute;left:-11111px;width:60px; ) but it is mostly to support old browsers like IE8 and IE9. 26 Feb 10, 2010 · Usage: childOf(child, parent) returns boolean true|false. Apr 12, 2017 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Jan 31, 2016 · In Angular 12, the console reports the following for me: Property 'nativeElement' does not exist on type 'HTMLElement' There seems to exist a specific attribute childElementCount which you can use for this case. element = this. Is there a way to check if progress exists in the ngIf: Jun 26, 2019 · You can get a reference to the ng-content (Template Variable) and then access that variable in your component to check the length on the content of that ng-content using ViewChild. May 27, 2019 · How to use *ngIf to check if an element exists in an Object? . In my directive, if I do the following, I get all the span's with class 'event': var parentid = angular. th like this : let ifExists = this. May 17, 2018 · angularjs: check if value exists in array of objects. In the array returned from the API I am just getting the values that should appear checked on the check boxes so what I want to do is loop through the returned array and check if any of the types match any types in the checkbox array if they do I want to set 'selected' to true. Nov 16, 2019 · I am using Angular 8. I ended up going about it a different way entirely using the component file and then nested ng-for and ifs. keys(json). To learn more, see our tips on writing great May 9, 2017 · So basically in my main content section I am trying to check if the class navigation-row exists on the page (navigation-row is the class for the secondary navbar) and if it does then add the class secondary-navbar-padding to the div. etc). When the component receives no children, I want it to show a message indicating that it's empty, but I haven't find a way to check if the component received no children, no matter the type. Explanation: while evaluates as long as the while-condition evaluates to true. Feb 24, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. If SOW in nodes are empty arrays, then it Jul 24, 2018 · i have to filter my table to check if there is an object containing a specifie value of role . Angular: Check if element has a class and add a Here are the few code snippet which can be used for framework which use Typescript, protractor, jasmine. I want to show image element if image exists and show div element if image doesn't exist. Documentation says: ngIf evaluates the expression and then renders the then or else template in its place when expression is truthy or falsy respectively. It always has name property but it may or may not have progress property. clientHeight attributes. data or not. As your table takes several minutes for rendering, after the data-array has been filled, your only chance is to listen to the change-event as long as it takes. To learn more, see our tips on writing great Apr 26, 2023 · With the above *ngIf condition I also need to check if this key Question Summary exists and its not an empty object because there's a case where I do not get this key. for those (including me) who could not get their head around Angular's documentation, here is an example which worked for me: angular. nativeElement. So when I click on the element with the class "addItem", this element is hidden using an *ngIf. getElementById('year-1')); var typeExists = parentid[0]. thisSession. observedByProperties. logout-button:visible"). AngularJS ng-class if element exists. According to MDN: The Element. But that's the wrong approach because, for example, in the list are 20 objects. feser cpq ncrvi bdos ilfxib aedqwci fanog zwt qglpp gxs xvupr syiiicd aycu jwsg jnp