I am interested in incorporating jQuery into my React development project

Question

I am interested in incorporating jQuery into my React development project

I'm trying to implement jQuery in React. I have an input field in my project that I am using to create a match event with 'this.state.value'. When the content of the input field matches, I want the borders to turn green and red if they do not match. However, I would like the border color to remain permanent even if there is no match. How can I achieve this?

<input className={this.state.value1 != this.state.value1.match(/^[a-zA-ZĞÜŞİÖÇğüşiöç]+$/) ? "redBorder inputInfo" : "greenBorder inputInfo"} name="value1"  type="text"  placeholder="Name" value1={this.state.value1} onChange={this.handleChange} />

Here is the CSS for it:

input[type=text].redBorder:focus{
    border: 3px solid red;
}

javascript html jquery css reactjs

Answer 1

Answer №1

Utilizing a state variable to validate input and dynamically change the classname is an effective approach. For a working example, refer to this codesandbox

styles:

.App {
  font-family: sans-serif;
  text-align: center;
}

input[type="text"] {
  border: 1px solid black;
}

input[type="text"].redBorder {
  border: 1px solid red;
}

input[type="text"].greenBorder {
  border: 1px solid green;
}

input[type="text"]:focus {
  outline: none;
}

Handling Input:

import { useEffect, useState } from "react";
import "./styles.css";

export default function App() {
  const [inputIsValid, setInputIsValid] = useState(null);
  const [inputValue, setInputValue] = useState("");

  useEffect(() => {
    if (inputValue.length > 0) {
      if (inputValue.match(/^[a-zA-ZĞÜŞİÖÇğüşiöç]+$/)) setInputIsValid(true);
      else setInputIsValid(false);
    } else setInputIsValid(null);
  }, [inputValue]);

  const handleValueChange = (e) => setInputValue(e.target.value);

  return (
    <div className="App">
      <input
        type="text"
        className={
          inputIsValid === null
            ? ""
            : inputIsValid
            ? "greenBorder"
            : "redBorder"
        }
        value={inputValue}
        onChange={handleValueChange}
      />
    </div>
  );
}

Answer 2

Utilizing a state variable to validate input and dynamically change the classname is an effective approach. For a working example, refer to this codesandbox

styles:

.App {
  font-family: sans-serif;
  text-align: center;
}

input[type="text"] {
  border: 1px solid black;
}

input[type="text"].redBorder {
  border: 1px solid red;
}

input[type="text"].greenBorder {
  border: 1px solid green;
}

input[type="text"]:focus {
  outline: none;
}

Handling Input:

import { useEffect, useState } from "react";
import "./styles.css";

export default function App() {
  const [inputIsValid, setInputIsValid] = useState(null);
  const [inputValue, setInputValue] = useState("");

  useEffect(() => {
    if (inputValue.length > 0) {
      if (inputValue.match(/^[a-zA-ZĞÜŞİÖÇğüşiöç]+$/)) setInputIsValid(true);
      else setInputIsValid(false);
    } else setInputIsValid(null);
  }, [inputValue]);

  const handleValueChange = (e) => setInputValue(e.target.value);

  return (
    <div className="App">
      <input
        type="text"
        className={
          inputIsValid === null
            ? ""
            : inputIsValid
            ? "greenBorder"
            : "redBorder"
        }
        value={inputValue}
        onChange={handleValueChange}
      />
    </div>
  );
}

Answer 3

Answer №2

Here is the solution I came up with. Feel free to test it out on my codesandbox.

import "./styles.css";
import React, { useState } from "react";
export default function App() {
  let [borderClass, setBorderClass] = useState("");
  let pattern = /^[a-zA-ZĞÜŞİÖÇğüşiöç]+$/;
  let handleChange = (e) => {
    if (e.target.value === "") {
      setBorderClass("");
    } else {
      if (e.target.value.match(pattern)) {
        setBorderClass("greenborder");
      } else {
        setBorderClass("redborder");
      }
    }
  };
  return (
    <div className="App">
      <input type="text" className={borderClass} onKeyUp={handleChange} />
    </div>
  );
}

.App {
  font-family: sans-serif;
  text-align: center;
}
input[type="text"]:focus {
  outline: none;
}
.greenborder {
  border: 1px solid green;
}
.redborder {
  border: 1px solid red;
}

Answer 4

Here is the solution I came up with. Feel free to test it out on my codesandbox.

import "./styles.css";
import React, { useState } from "react";
export default function App() {
  let [borderClass, setBorderClass] = useState("");
  let pattern = /^[a-zA-ZĞÜŞİÖÇğüşiöç]+$/;
  let handleChange = (e) => {
    if (e.target.value === "") {
      setBorderClass("");
    } else {
      if (e.target.value.match(pattern)) {
        setBorderClass("greenborder");
      } else {
        setBorderClass("redborder");
      }
    }
  };
  return (
    <div className="App">
      <input type="text" className={borderClass} onKeyUp={handleChange} />
    </div>
  );
}

.App {
  font-family: sans-serif;
  text-align: center;
}
input[type="text"]:focus {
  outline: none;
}
.greenborder {
  border: 1px solid green;
}
.redborder {
  border: 1px solid red;
}

I am interested in incorporating jQuery into my React development project

Answer №1

Answer №2

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