Online Converter: jQuery to JavaScript
How to convert Jquery code to React JS?
reactjs - HOw to convert jquery to react js - Stack Overflow
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React works in different way to manipulate your DOM and events. To achieve the same function, you can do something like this:
MyComponent extends React.Component{
constructor(props) {
super(props);
this.state = {
toggled: false
};
this.toggleMenu = this.toggleMenu.bind(this);
}
toggleMenu() {
let isToggled = this.state.toggled;
this.setState({ toggled: !isToggled});
}
render() {
let buttonClass = (this.state.toggled) ? 'toggled' : '';
return (
<div className={buttonClass}>
<button id="menu-toggle" onClick={this.toggleMenu}>Toggle Menu</button>
</div>
);
}
};
Basically, different from jQuery, you should control your DOM with state and props. Please check React.js docs for conditional rendering: https://facebook.github.io/react/docs/conditional-rendering.html
As mentioned before React is a different animal for certain reasons explained. To achieve the same functionality using React Hooks please refer to the following code :
import React,{useState} from 'react';
export default function MyComponent() {
const[toggled,setToggled] = useState(false)
const buttonClass = (toggled)? 'toggled':'';
return(
<div className={buttonClass}>
<button
id="menu-toggled"
onClick={()=>setToggled(!toggled)}>
press
</button>
</div>
)
};
Please take a look at Stackblitz example
import React from 'react';
const foo: React.FC = () => {
const [isFocused, setFocus] = React.useState(false);
const handleFocus = () => {
setFocus(true);
};
const handleBlur = () => {
setFocus(false);
};
return (
<div
className={`someClass ${isFocused && 'focus'}`}
onFocus={handleFocus}
onBlur={handleBlur}
>
hello
</div>
);
}
export default foo;
here is the code what you looking for.
you can check react event in following link https://reactjs.org/docs/events.html
and also using classnames or clsx is good idea.
No need to convert that code into 'React' from jQuery. The simple way is just include '$' the add that code like the following method. It will work.
import React from 'react';
import $ from 'jquery';
function ExampleFunction(props) {
$(document).ready(function() {
$("input#password").focus(function() {
$("#overlay").addClass("newoverlay");
}).blur(function() {
$("#overlay").removeClass("newoverlay");
});
});
return (<React.Fragment>
<div> Your code </div>
</React.Fragment>);
}
export default ExampleFunction;
You may need to update this code based on the class-based or functional components respectively.