I have data from redux called targetFarm. targetFarm.children contains these array object data. I want to put data in targetFarm.children into gyetong using useEffect and setgyeTong hooks. As an array object value like below But with my code it only takes one array. How can i fix my code? Answer For your info…
Tag: reactjs
How To Render Data From Firebase Without Page Refresh
I’m creating a simple note taking app. The functionality I need is the ability to make a new LABEL, and then inside that label create a TITLE, with TAGS(notes) associated to that title. Right now I have it all working nicely, except when I submit the new label, and/or new title/tags, I need to refresh t…
Add new column on button click in React JS react-table
I need to add new column to react-table when button click, even after re-rendering table with flag Iam unable to add new column, can you please suggest on where am I gone wrong. Here is the executable sandbox code. https://codesandbox.io/s/tannerlinsley-react-table-row-selection-forked-3gcwm?file=/src/App.js …
looping through two array to replace one value in array for specific match
I’ve two arrays like below And the other one like below My intention is, the second array value matches the first array with firstname then needs to override flag with false. I’m expecting a result like Note: If firstname is not matched. I don’t want to change the flag value. – Any good way …
Why is my useEffect function called only once?
I am rendering a list of Trips objects inside a FlatList. So I have a screen named Network where I have FlatList which represents each of the trips. My render method: Inside my Trip component is the trip information. Trip’s name AND trip’s geo locations. From those geolocations I want to get the t…
How to check if an email address is written more than once or not
I am using a map in javascript and using the logic if the number of fields is more than the map size then any of the mail addresses are repeated. The problem arises as the map takes empty and undefined values, thus giving the wrong output. Suppose I keep 1st and 2nd fields empty then undefined is the map, sho…
React native: Update value of object in array in state
I have a component which changes the state when checkbox is checked and the data needs to be updated of the object in the array. The component state looks something like this { key:1, todo:”Something”, isChecked:false } i have 3 files: AddTodo.js Which passes state & setState to an component T…
cant change the backgroud after updating the hook
i have a hook that holds number (as index) and array of images: i made two buttons that hold onClick event that should change the background to another image (by index): and the functions: by this the hook (currentIndex) should change and display the next image but its not working. what am i missing? this is …
javascript removing meta tags that’s added with document.createRange().createContextualFragment() from the
In my react componentDidMount I get meta tags from the response that needs to be added before the </head>. The problem is that I need to remove the meta tags when the component unmounts. I saw a solution to add an ID so I can do getElementById and remove it that way but since the meta tags are dynamic u…
How to layer a image underneath components in React NEXT.JS
I’m trying to make a website and using this Canadian politicians site as a reference. I like how his navbar and join components layer on top of his picture, and how his picture is a fixed length and resizing the window resized the picture only a little bit based on the layered components but also keeps …