I want to have a function that can return a button with onClick equal to some custom function you can pass in. Here's what I have so far. When I click on it, nothing happens. Here is the code that for the button
function Button({text,bgcolor,func}){
return <button onClick={func} style={{backgroundColor:bgcolor, color:"white"}}>{text}</button>
}
and here's the code I'm using to make it
<Button text="alert" bgcolor="red" value="()=>alert('test')" />
You're passing a string, not a function. Also, the prop value doesn't equal to the prop func, expected by Button. Just write:
<Button text="alert" bgcolor="red" func={()=>alert('test')} />
Related
so i have a form component having button array,
though i used icons in it with value attribute. just like below.
<button value={'admin'} onClick={(e)=> handleClick(e.target.value)}>
<FaUserSecret classname="text-lg" />
</button>
in handleClick function e.target.value is returning icon instead of admin.
Thanks in advance 😄💗.
I tried to pass e as parametter and use its value in function but still same.
Can you please elaborate or share more code with us. Cause I tried your given code and it's working fine. I am getting 'admin' as the output.
<div className='App'>
<button value={'admin'} onClick={(e)=> console.log(e.target.value)}>
Click
</button>
</div>
Try this:
<button value={'admin'} onClick={e => handleClick(e.target.value)}>
<FaUserSecret classname="text-lg" />
</button>
You're not supposed to use parenthesis around "e".
You can use e.currentTarget.getAttribute("value") method to get the admin value assigned to the button.
CodeSandbox code reference
Difference b/w e.target and e.currentTarget - difference-between-e-target-and-e-currenttarget
I have the following code to use React To print, a library to print a component:
<ReactToPrint
trigger={() =>
<SqIconButton action={(e)=>e} color={"success"}>
<AiIcons.AiFillPrinter style={{color: 'black',fontSize:'1rem'}}/>
</SqIconButton>
}
content={() => componentRef.current}
/>
And my custom Button SqIconButton reads as follows:
export default function SqIconButton({children,color="primary",fontColor="#000000",action,tip="",disableElevation=false,sxstyle={},classes}){
return(
<Tooltip title={tip}>
<Button
color={color}
variant="contained"
onClick={action}
disableRipple={disableElevation}
className={`TBButton ${classes}`}
sx={sxstyle}
>
{children}
</Button>
</Tooltip>
)
}
In the examples of React To Print code for its trigger nothing is referencing "onclick" property on buttons, examples mostly look like this: <button>print this</button> and if I use this element it actually works. But my custom button does not work as is, so I think I have to pass the onclick event over my action custom property, so I'm trying with action={(e)=>e}, but the button does nothing when I press it.
Documentation says about trigger:
A function that returns a React Component or Element. Note: under the hood, we inject a custom onClick prop into the returned Component/Element. As such, do not provide an onClick prop to the root node returned by trigger, as it will be overwritten
So I don't know if onclick will be overwritten how could I pass this event to a child button component.
How come the following React Button Emitter is not working? It should display the word Apple, with button click.
function App() {
return (
<div>
<button onClick={handleClick('apple')}>
Test Button
</button>
</div>
)
}
function handleClick(props) {
console.log(props)
}
In order for it to get called on click you need to pass a function. Right now your code is invoking the function:
function App() {
return (
<div>
{/* Creates an anonymous function that calls `handleClick` */}
<button onClick={() => { handleClick('apple'); }}>
Test Button
</button>
</div>
)
}
By doing onClick={handleClick('apple')} what you are doint is to put the result of handleClick('apple') at rendering time, not onClick time.
onClick={() => handleClick('apple')} will work because you are creating a function and assign it to onClick, without executing it yet.
This is how React works, because what you are writing is actually just javascript (not html, even if it looks like so).
Your way would instead be perfectly ok if you were using Vue, for example, because in that case you are working in an html template (unless you don't want to use jsx..)
I want to add accessibility features to the Material UI Button.
I expect to use this custom button as follows:
import Button from '#material-ui/core/Button';
function AccessibleButton(props) {
const { accessKey, ariaLabel, isDisabled, label, onClick, tabIndex, variant, size} = props;
return (
<Button
accesskey={accessKey}
aria-label={ariaLabel}
disabled={isDisabled}
className={componentCls}
onClick={onClick}
tabindex={tabIndex}
variant={variant}
size={size}
>
{label}
</Button>
);
};
Aria labels are available for inputs, but don't seem to be for buttons. How do I pass the additional props (accessKey, ariaLabel) into the Material UI Button. How do I do this?
This should work since most of our components forward their excess props. On the corresponding api pages (here https://material-ui.com/api/button/) you will find a table with the apparent props. Below that is a note that tells you what happens with excess props.
It's a bit iffy to navigate (we're working on it) but in the end you'll see that excess props are forwarded to the native element. So <Button aria-label="ariaLabel" /> will render a <button aria-label="ariaLabel" />.
Your code should work.
I have created sandbox where you can inspect the button and see the button will have aria-label and accesskey attribute.
<Button
aria-label="This is aria label"
accessKey="Key"
variant="contained"
color="primary"
>
I'm a button
</Button>
Try inspecting button in below sandbox.
I am trying to add a FormControl, a Select component and a MenuItem to the action prop of the CardHeader IconButton.
Currently the code looks like this:
Rendering:
<CardHeader
action={
<IconButton
onClick={this.renderFilterRequest()}
>
<Edit />
</IconButton>
}
/>
onClick method:
renderFilterRequest() {
const { selection } = this.state;
return (
<div>
<FormControl>
<Select
value={selection}
onChange={this.handleFilterChange}
>
<MenuItem value='1'>January</MenuItem>
<MenuItem value='2'>February</MenuItem>
</Select>
</FormControl>
</div>
);
}
The error I get is onClick listener to be a function, instead got a value of object type. What is the right way to render the dropdown menu on CardHeader action click?
You are returning some div from from this.renderFilterRequest, And you are also calling the function, so the value of onClick becomes the div. But they were meant to be functions, right?
So it should have been just: onClick={this.renderFilterRequest}.
This function also returned a div but there is no way to attach it to rendering logic in render.
You need to put the MenuItems in your render method and show/hide them depending on the state.
Your onClick listener should be a function that changes the state so that the MenuItems become visible.
Here is a simple demo how this should be done: