react-numberpad
v1.0.3
Published
A react based on-screen number pad.
Downloads
1,097
Maintainers
Readme
react-numberpad
A react based on-screen number pad.
npm
npm i react-numberpad
https://www.npmjs.com/package/react-numberpad
demo
https://ssxv.github.io/react-numberpad/
usage
import React from 'react';
import { render } from 'react-dom';
import Numpad from '../../src';
class App extends React.Component {
constructor() {
super();
this.state = {
value: '0'
};
this.changeValue = this.changeValue.bind(this);
}
changeValue(numText) {
let value = this.state.value;
if (numText === '<') {
value = value.slice(0, -1);
if (!value) {
value = '0';
}
} else if (numText === '.') {
if (value.indexOf('.') === -1) {
value += numText;
}
} else {
if (value === '0') {
value = '';
}
value += numText;
}
if (value.indexOf('.') !== -1) {
value = value.substring(0, value.indexOf('.') + 3); // for upto 2 decimal places
}
this.setState({ value });
}
render() {
return (
<React.Fragment>
<div>{this.state.value}</div>
<Numpad onKeyPress={this.changeValue} />
</React.Fragment>
);
}
}
render(<App />, document.getElementById("root"));
html reference
<div class="numpad">
<span>7</span>
<span>8</span>
<span>9</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span>1</span>
<span>2</span>
<span>3</span>
<span>0</span>
<span>.</span>
<span><</span>
</div>
https://wesomething.com/