Automatically capitalizing user input in React

Question

Automatically capitalizing user input in React

I have implemented an input field that accepts user input and made it appear as if the first letter is automatically capitalized using CSS with textTransform: capitalize. However, when I assign a useState variable to the input field, the value does not retain proper capitalization. How can I ensure that the useState variable's value reflects the correct capitalization displayed in the input field?

Below is the code snippet:

import {useState} from "react"
import "./styles.css";
import {Input} from "antd";

export default function App() {
  const [text, setText] = useState("")
  return (
    <div className="App">
      <Input placeHolder="Type Something" style={{textTransform:"capitalize"}} onChange={(e)=>{setText(e.target.value)}}/>
      <br/>
      value = {text}
    </div>
  );
}

For a better visualization and understanding, please refer to this codesandbox link.

css reactjs forms frontend antd

Answer 1

Answer №1

To ensure proper state updating, it is important to modify the input value before setting it as state:

onChange={(e) => {
  setText(e.target.value.charAt(0).toUpperCase() + e.target.value.slice(1));
}

Answer 2

To ensure proper state updating, it is important to modify the input value before setting it as state:

onChange={(e) => {
  setText(e.target.value.charAt(0).toUpperCase() + e.target.value.slice(1));
}

Answer 3

Answer №2

To implement proper text capitalization, you can utilize the code snippet provided below:

import React,{useEffect, useState} from "react"
const Home=()=>{
  const [text, setText] = useState("")
  const capitalizeText = (e)=>{
    let inputString = e.target.value;
    let convertedString =   inputString.split(' ')
      .map(function (word) {
        return word.charAt(0)
          .toUpperCase() + word.slice(1)
          .toLowerCase();
      })
      .join(' ');
      setText(convertedString);
    }
   
    return (
      <div>
        <input placeHolder="Enter Text Here" style={{textTransform:"capitalize"}} onChange={(e)=>capitalizeText(e)}/>
        <br/>
        Capitalized Text: {text}
      </div>
    );
  }

  export default Home;

Answer 4

To implement proper text capitalization, you can utilize the code snippet provided below:

import React,{useEffect, useState} from "react"
const Home=()=>{
  const [text, setText] = useState("")
  const capitalizeText = (e)=>{
    let inputString = e.target.value;
    let convertedString =   inputString.split(' ')
      .map(function (word) {
        return word.charAt(0)
          .toUpperCase() + word.slice(1)
          .toLowerCase();
      })
      .join(' ');
      setText(convertedString);
    }
   
    return (
      <div>
        <input placeHolder="Enter Text Here" style={{textTransform:"capitalize"}} onChange={(e)=>capitalizeText(e)}/>
        <br/>
        Capitalized Text: {text}
      </div>
    );
  }

  export default Home;

Answer 5

Answer №3

 const handleClickCapitalize = () => {    
    let updatedText = text.charAt(0).toUpperCase() + text.slice(1);
    setText(updatedText);
  };

Answer 6

 const handleClickCapitalize = () => {    
    let updatedText = text.charAt(0).toUpperCase() + text.slice(1);
    setText(updatedText);
  };

Automatically capitalizing user input in React

Answer №1

Answer №2

Answer №3

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