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Tag: reactjs

Not being able to print an array

i created empty array using the React State Hook, the array starts empty and i have 3 functions to (add to the array), (remove the last element of the array) and another to empty the array. The functions seems to work since i logged the result in the console. But when i want to print the array on a paragraph,

Data Format, how to map this object?

I’d like to map out an array from a backend API call. This comes from a schema which currently has the format of Within this, I have an object, however it looks like this for example: Given the above, i’d like to map through this data on a component. I have tried to store it into a const, then map

Changing the values of objects in an array with React

While working on React today, I got stuck somewhere because my basic JavaScript knowledge is not good. I want to change the value of the “name” property of any object in this array. Codesandbox: https://codesandbox.io/s/dank-rain-udjcxe?file=/src/App.js My App.js file Answer Essentially you need to create an updated array and set it. Use the callback method setPeople to update the array. Try

Button onsubmit() event is not working on react

I tried to coding the form submission code on ReactJS and Express,NodeJS but I got some problem with the onSubmit() event Everytime that I code <form onSubmit={loginUser}> the button won’t submit, can’t even click. But if I remove to <form>, the button can click normally I changed in to <input type=’submit’>Login</input> and the page has gone blank Here’s the code

React table cell getSelection()

I have a table with an onRowClick handler on the <tr/> element, I want to prevent a click event if I select text inside it, my solution was this: What I found odd is, when I select a text inside a cell, and click on the same cell, the click event is not fired until the selection is cleared, but

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