Angular check if element exists stack overflow. Angular 2 Check if query parameter exists in the url .
Angular check if element exists stack overflow Jul 6, 2015 · Thanks for contributing an answer to Stack Overflow! Check if an element exists in a object. clientHeight attributes. el. Thus checking the checkbox. Jul 30, 2014 · I have a set of radio buttons, when a radio button is selected the element is pushed into an object. 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. scrollbox { overflow: auto; width: 200px; max-height: 200px; margin: 50px auto; background: /* Shadow covers */ linear-gradient(white 30%, rgba(255,255,255,0 I have two list elements side by side. usableDeposits[] javascript Share Jan 27, 2011 · You can do this using a combination of the Element. In this case you can use document. th like this : let ifExists = this. getElementById('year-1')); var typeExists = parentid[0]. You could simply use filter() to see if you get an empty list or not. Something like: Below function can be used to check for a value in any level in a JSON. I have to check if any of the "cuesData" has a value or length greater than 0. So, for general case, you would want to have boolean property on your component and put that to *ngIf. Aug 1, 2016 · 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 One of the things is to check is there are other spans with data-type="X". hasOwnProperty(mytype)'> Just keep in mind that the content inside the element won't be part of the DOM if the IF condition is not met, if you still want the content to exist you can also use ng-show Jan 4, 2018 · Thanks for contributing an answer to Stack Overflow! Check if an element exists in a object. Jul 10, 2022 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Check if element exists - Jasmine & Angular. It always has name property but it may or may not have progress property. The built-in @if supports referencing of expression results to keep a solution for common coding patterns: New More user's social links (Dev. createComponent(componentFactory)" why cant you check if your component is there or not. 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. 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. hasClass('my-class'); angular. Aug 2, 2018 · You can check if a property is defined in mapToSearch with hasOwnProperty (see this stackblitz): <ng-container *ngIf="mapToSearch. I want to show image element if image exists and show div element if image doesn't exist. TS checkValues(values) { const result = O Feb 23, 2018 · Yeah maybe i can make a locally list then check if the component exists in my list. 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. You also can't just call . May 27, 2019 · How to use *ngIf to check if an element exists in an Object? . Jul 19, 2018 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I would like to check in a template if an element in a loop is a specific ElementRef. 1. There's several ways to do it, depending on your intent. 18. According to MDN: The Element. data = ["cat", "dog"]; I want to check, in my html file, if cat exists in the object this. usableDeposits[], then i want to push the element into vm. These will be displayed on the profile section in Editor's sidebar and your public profile. checkRoleExistence("PILOTE") ; Dec 28, 2022 · I'm a little confused between you wanna update the profileForm and push into it's addressArray. wait(until. keys(json). scrollHeight and Element. 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. In my directive, if I do the following, I get all the span's with class 'event': var parentid = angular. thisSession. 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. 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. Progress has a value of type number. Apr 25, 2016 · I want to display a user profile image if it exists; else show default font awesome icon. Feb 24, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. ts file this. 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. log(this. getComputedStyle(element). 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. But that's the wrong approach because, for example, in the list are 20 objects. count() > 0 When using ngIf, angular completely removes the node from markup. I want to check in Angular if object exists inside array of objects or not. for those (including me) who could not get their head around Angular's documentation, here is an example which worked for me: angular. I have a successful test for Apr 25, 2019 · I use ElementRef in Angular to get DOM elements: private el: ElementRef; this. length', 0) worked - even worse: If the element I was querying was actually there right from the get-go, both asserts still returned true. You can create a component with "viewContainerRef. I also want to use a different structure (maybe using <ng-template> ) when it's empty, so I don't want to rely on an HTML element to check if it received Dec 28, 2015 · already asked } // Generate number from 0 to ids. hasOwnProperty(keyToFind)"> Hello world </ng-container> hasOwnProperty will return true if the property exists, even if the associated value is falsy. exist') nor . I have a semi-related question you may be able to answer. scrollHeight read-only attribute is a measurement of the height of an element's content, including content not visible on the screen due to overflow. nativeElement. etc). removeClass('old-class'); hope this help someone While this code may solve the question, including an explanation of how and why this solves the problem would really help to improve the quality of your post, and probably result in more up-votes. Angular doesn't run in parallel with your code. Is there a more efficient way to check if a specific property return true, and if it does, push it to an array, and then check for the next desired prop Apr 28, 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 do t May 29, 2018 · Here I want to check whether the user "admin" exists in the array? I tried with following but it is returning the result as false: console. To learn more, see our tips on writing great Apr 29, 2016 · I have two sibling elements. In my code below, i can only check the first array but not the others. toArray()[2]; } } Jul 23, 2020 · In this condition, I have to check each and every parent element which I think is not a good solution but I am also not sure what is the best way to handle this case, I was expecting that something like below will work but its not. To learn more, see our tips on writing great Aug 11, 2020 · Thanks for contributing an answer to Stack Overflow! Check if an element exists in a object. Check if an object exist in an array in Angular 6. 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. The first result is simply the first element of the array - the elements are all of the same type/format, which is string. It seems some people are landing here, and simply want to know if an element exists (a little bit different to the original question). Dec 12, 2016 · Practically you can use hasClass method with angular element: angular. Apr 12, 2017 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. angularjs: check if value exists in array of objects. 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. 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. Apr 28, 2018 · 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 May 5, 2017 · I receive a number type = 3 and have to check if it exists in this enum: export const MESSAGE_TYPE = { INFO: 1, SUCCESS: 2, WARNING: 3, ERROR: 4, }; The best way I found is by gett Mar 11, 2018 · 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 Feb 6, 2018 · I want to check if the following object has the property forums and if that property value is true. 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. to, Stack Overflow and Medium. querySelectorAll('. should('not. 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 . idfpaeelhtgdgwmtskaprignfswwdesjegaodtvippzdzuymnhrffxfctzwymuhqe