Web developer specializing in React, Vue, and front end development.
Sometimes, we want to disable button in React.
In this article, we’ll look at how to disable button in React.
To disable button in React, we can set the disabled prop.
For instance, we write
<button disabled={value}>button</button>;
to set the disabled prop to the value state.
To disable button in React, we can set the disabled prop.
Sometimes, we want to remove all event listeners of a DOM object with JavaScript.
In this article, we’ll look at how to remove all event listeners of a DOM object with JavaScript.
To remove all event listeners of a DOM object with JavaScript, we can get all event listener names with getEventListeners.
And then we call remove on each event listener.
For instance, we write
for (const eventType of Object.keys(getEventListeners(document))) {
getEventListeners(document)[eventType].forEach((o) => {
o.remove();
});
}
to use Object.keys(getEventListeners(document)) to get an array of event listener name strings.
Then we call getEventListeners(document)[eventType].forEach with a callback that calls remove to remove each event listener.
To remove all event listeners of a DOM object with JavaScript, we can get all event listener names with getEventListeners.
Sometimes, we want to add line breaks to SVG text with JavaScript.
In this article, we’ll look at how to add line breaks to SVG text with JavaScript.
To add line breaks to SVG text with JavaScript, we set the text location explicitly.
For instance, we write
g.append("svg:text")
.attr("x", 0)
.attr("y", 30)
.attr("class", "id")
.append("svg:tspan")
.attr("x", 0)
.attr("dy", 5)
.text((d) => {
return d.name;
})
.append("svg:tspan")
.attr("x", 0)
.attr("dy", 20)
.text((d) => {
return d.sName;
})
.append("svg:tspan")
.attr("x", 0)
.attr("dy", 20)
.text((d) => {
return d.idCode;
});
to call attr with 'dy' to set the y position of the tspan element relative to the first tspan.
To add line breaks to SVG text with JavaScript, we set the text location explicitly.
Sometimes, we want to fix onClick being called on render with React.
In this article, we’ll look at how to fix onClick being called on render with React.
To fix onClick being called on render with React, we can set the onClick prop to a function reference.
For instance, we write
const Square = ({ value }) => {
return (
<button className="square" onClick={() => alert("click")}>
{value}
</button>
);
};
to set the onClick prop to a function that shows an alert box.
The function is called only when we click the button since we pass in the function’s reference rather than its returned value.
To fix onClick being called on render with React, we can set the onClick prop to a function reference.
Sometimes, we want to play a notification sound on websites with JavaScript.
In this article, we’ll look at how to play a notification sound on websites with JavaScript.
To play a notification sound on websites with JavaScript, we can create a new audio element and call play on it.
For instance, we write
const playSound = (url) => {
const audio = new Audio(url);
audio.play();
};
to create the playSound function that creates a new Audio object with the source being the audio file at the url.
Then we call play on it to play the audio at the url.
To play a notification sound on websites with JavaScript, we can create a new audio element and call play on it.