Cannot read property classlist of undefined
WebJan 7, 2024 · In that case, classList is only accessible through the current attribute of the ref. this.rightSide.current.classList As createRef () is asynchronous, it might return null if you are accessing it early, e.g. on the componentDidMount lifecycle. Hence, it is always safer to add an if statement to check for current WebFeb 25, 2024 · Uncaught TypeError: Cannot read property 'classList' of undefined at HTMLDocument.clearMenus (bootstrap.js:2443) at HTMLDocument.handler (bootstrap.js:415) dropdownMenu.classList.remove(CLASS_NAME_SHOW$2); <- bootstap.js line 2443
Cannot read property classlist of undefined
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WebApr 11, 2024 · The problem is that the element isn't mounted when the component first runs. But why are you manually building HTML? If you want to keep doing it that way you will need to do it inside a useEffect which will run after mount (and ideally store your element references in a ref not via query) – pilchard WebNov 17, 2014 · Uncaught TypeError: Cannot read property 'msie' of undefined - jQuery tools. 117. ... TypeError: Cannot read property 'classList' of null. Hot Network Questions Who is the PhD student to their supervisor? How does this siren circuit work? ...
WebJun 24, 2024 · The text content inside will be visible only if I click on it. But when I click on the radio button it doesn't show the content inside it and shows the "Cannot read … WebApr 27, 2024 · And now I'm ending up with Uncaught TypeError: cannot read property "ClassList" of undefined. I'm guessing this has to do with the order in which the code is running now that the JS has moved into a module, but after a few attempts with directing the code to execute differently, I'm feeling stuck.
WebSep 6, 2024 · initialising materiliaze-css with M.AutoInit() I receive: "Cannot read property 'classList' of undefined". Same result if I select and initialise the single element (that exists) and component: WebNov 1, 2024 · One way to "Workaround" this is using e.currentTarget instead of suggested as by Ori Dori's comment. clickButton.addEventListener ("click", (e) => { e.currentTarget.classList.toggle ("modified"); }, false); As cited by Wesbos. Use currentTarget instead of target as target can change if you have nested elements like a …
WebОшибка : Cannot read property 'map' of undefined. Я следую туториалу reactjs , и продолжаю нарваться на вопрос, когда передавая значение из состояния одного …
Web1 day ago · Cannot read property 'addEventListener' of null. ... Cannot read properties of undefined (reading 'classList') Related questions. 220 Cannot read property 'addEventListener' of null. 6 Insert read more button when line clamping. 1 Cannot read properties of undefined (reading 'classList') ... rbk property managementsims 4 chingyu base game traitsWebJan 12, 2024 · Navbar TypeError: Cannot read property 'classList' of null. Ask Question Asked 2 years, 2 months ago. Modified 2 years, 2 months ago. Viewed 248 times ... Uncaught TypeError: Cannot read property 'msie' of undefined - jQuery tools. 221. Cannot read property 'addEventListener' of null. 125. sims 4 chingyu modWebMar 20, 2024 · You should access classList of element inside elems if (elems [i].classList.contains ("active")) Simpler Way: And also can do that using querySelectorAll () giving it multiple classes and loop using forEach () const elems = document.querySelectorAll ('.slide.active') elems.forEach (a => console.log (a.getAttribute ('data-headertext'))) sims 4 chingy more traitsWebSep 30, 2014 · Sep 30, 2014 at 8:46. You still need to pass a parameter to toggle (). It expects the parameter section, and passes this parameter into 'querySelectorAll. If section` is undefined then querySelectorAll () will return null and you will not be able to get a classList from null. – RichieAHB. rbk poultry limitedWebApr 11, 2024 · Uncaught TypeError: Cannot read property 'top' of undefined. 440 React - uncaught TypeError: Cannot read property 'setState' of undefined. Related questions. 590 Why does jQuery or a DOM method such as getElementById not find the element? ... Uncaught TypeError: Cannot read properties of undefined (reading 'classList') rbk properties limitedWebOct 11, 2024 · Uncaught TypeError: Cannot read property 'classList' of undefined. Environment. Leaflet version: 1.5.1; ... Uncaught TypeError: Cannot read properties of undefined (reading 'classList') at removeClass (leaflet-src.js:2446:11) at NewClass._onPanTransitionEnd (leaflet-src.js:4711:5) at NewClass.fire (leaflet … rbk pediatrics saxon ave