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Example of Grid.js on React

Is there a React example using grid.js? having errors
import React from 'react';
import { Grid } from 'gridjs';
export const TableNew = () => {
const grid = new Grid({
columns: ['Weekly', 'Fortnightly', 'Monthly', 'Annually'],
data: () => [
['Pay', 0, 0, 0],
['Taxable Income', 0, 0, 0],
['Taxes', 0, 0, 0],
],
});
console.log('grid', grid);
return <div>{grid}</div>;
};
ERROR:
Error: Objects are not valid as a React child (found: object with keys {_config}). If you meant to render a collection of children, use an array instead.
in div (at TableNew.jsx:15)

There are no docs on this, but the way it works is that it needs a ref in order to render.
import React, { useEffect, useRef } from "react";
import { Grid } from "gridjs";
const TableNew = () => {
const wrapperRef = useRef(null);
useEffect(() => {
new Grid({
columns: ["Weekly", "Fortnightly", "Monthly", "Annually"],
data: () => [
["Pay", 0, 0, 0],
["Taxable Income", 0, 0, 0],
["Taxes", 0, 0, 0]
]
}).render(wrapperRef.current);
});
return <div ref={wrapperRef} />;
};
export default TableNew;
I created a sandbox with a working example.
https://codesandbox.io/embed/vigorous-hopper-n4xig?fontsize=14&hidenavigation=1&theme=dark
There is an open issue to add a React Wrapper https://github.com/grid-js/gridjs/issues/26 (I can guess, since the issue intention is not clearly described)

Here is an example with custom pagination, search, sorting and dynamic data from an api.
const ExampleComponent = () => {
const grid = new Grid({
search: {
enabled: true,
placeholder: 'Search...'
},
sort: true,
pagination: {
enabled: true,
limit: 5,
summary: false
},
columns: [
'Id',
'Tag',
'Name'
],
data: () => {
return api.movies.list({ locationId }).then(({ data }) => {
return data.results.map(movie => [movie.id, movie.tag, movie.name])
})
}
})
useEffect(() => {
grid.render(document.getElementById('wrapper'))
}, [locationId])
return (
<div id='wrapper' />
)
}

I just published the first version of the React component for Grid.js:
Install
npm install --save gridjs-react
Also, make sure you have Grid.js installed already as it's a peer dependency of gridjs-react:
npm install --save gridjs
Usage
<Grid
data={[
['John', 'john#example.com'],
['Mike', 'mike#gmail.com']
]}
columns={['Name', 'Email']}
search={true}
pagination={{
enabled: true,
limit: 1,
}}
/>
Links
Example: https://gridjs.io/docs/integrations/react
Repo: https://github.com/grid-js/gridjs-react
Edit on CodeSandbox: https://codesandbox.io/s/gridjs-react-ddy69

I am also using Grid.js in a react context. I found I had to install both Grid.js and the React integration:
npm install gridjs
npm install gridjs-react
and then change the import to this:
import {Grid} from "gridjs-react";
I am sure there is another way without the react wrapper but this is what did the trick for me.

Beginner using chart.js: having trouble display state full of data into a column chart using variables

When I hand code some number into ex: "ColumnChart data={['Sun', 20], ['Mon', 15], ..." the column chart works fine. But I want to use variables in order to transfer the data because later I will be using numbers inputed by the user. How can I fix this? Also, there is no error in the console, so no help there.
import React, {Component} from 'react'
import ReactChartkick, { ColumnChart } from 'react-chartkick'
import Chart from 'chart.js'
import Income from './Income'
class Calculations extends Component {
state = {
weeklyIncome : {
Sunday: 60,
Monday: 30,
Tuesday: 50,
Wednesday: 20,
Thursday: 200,
Friday: 100,
Saturday: 20
}
}
render() {
const weeklyIncome = this.state
console.log(weeklyIncome)
return (
<div>
<h2 className="text-center my-5">Weekly Report</h2>
<ColumnChart data={[
["Sun", weeklyIncome.Sunday],
["Mon", weeklyIncome.Monday],
["Tue", weeklyIncome.Tuesday],
["Wed", weeklyIncome.Wednesday],
["Thu", weeklyIncome.Thursday],
["Fri", weeklyIncome.Friday],
["Sat", weeklyIncome.Saturday]
]} />
<div>
<Income/>
</div>
</div>
)
}
}
export default Calculations

You set the entire state object as weeklyIncome, so weeklyIncome.Sunday etc. will be undefined.
You want to destructure weeklyIncome out of the state object instead.
const { weeklyIncome } = this.state

How to use vanilla javascript inside Reactjs component?

I am using chartist.js and I am using the chartist within reactjs component.
I am referring this http://gionkunz.github.io/chartist-js/examples.html#simple-pie-chart
chartist.js:
var Chartist = {
version:'0.9.5'
}
(function (window, document, Chartist) {
var options = {
labelInterpolationFnc: function(value) {
return value[0]
}
};
var responsiveOptions = [
['screen and (min-width: 640px)', {
chartPadding: 30,
labelOffset: 100,
labelDirection: 'explode',
labelInterpolationFnc: function(value) {
return value;
}
}],
['screen and (min-width: 1024px)', {
labelOffset: 80,
chartPadding: 20
}]
];
})();
Reactjs component:
import React, { Component } from 'react';
var data = {
labels: ['Bananas', 'Apples', 'Grapes'],
series: [20, 15, 40]
};
showPieChart(data){
new Chartist.Pie('.ct-chart', data, options, responsiveOptions);
}
class Chart extends Component {
render(){
return(
<div>
<div className="center">
{showPieChart}
</div>
</div>
)}
}
export default Chart;
Nothing is displayed on web page. How can I access vanilla javascript inside react component.

Your question is a little bit misleading, and can be interpreted in two ways.
#1. If you're asking how to integrate Chartist library with React, here's how you can do it:
There's a wrapper library, that already did it for us: https://www.npmjs.com/package/react-chartist
You can use it as follow (example taken from their repo):
import React from 'react';
import ReactDOM from 'react-dom';
import ChartistGraph from 'react-chartist';
class Pie extends React.Component {
render() {
var data = {
labels: ['W1', 'W2', 'W3', 'W4', 'W5', 'W6', 'W7', 'W8', 'W9', 'W10'],
series: [
[1, 2, 4, 8, 6, -2, -1, -4, -6, -2]
]
};
var options = {
high: 10,
low: -10,
axisX: {
labelInterpolationFnc: function(value, index) {
return index % 2 === 0 ? value : null;
}
}
};
var type = 'Bar'
return (
<div>
<ChartistGraph data={data} options={options} type={type} />
</div>
)
}
}
ReactDOM.render(<Pie />, document.body)
#2. If you generally asking how to integrate other libraries into React, then I recommend you to check the official React docs, because there's a really good tutorial about the topic - Integrating with Other Libraries
So, if you don't want to use the wrapper library (react-chartist), then you can check its main component too. It's a great starting point (that follows React recommendations) to understand how to create your own wrapper: https://github.com/fraserxu/react-chartist/blob/master/index.js

How can I pass an object from container to class in Meteor and React?

I'm trying to get a value in an object of javascript but it fails somehow. I managed to get an intended data from mongoDB by findOne method. Here is my code and console log.
const title = Questions.findOne({_id: props.match.params.id});
console.log(title);
Then console says:
Object {_id: "bpMgRnZxh5L4rQjP9", text: "Do you like apple?"}
What I wanna get is only the text in the object. I have already tried these.
console.log(title.text);
console.log(title[text]);
console.log(title["text"]);
console.log(title[0].text);
But I couldn't access to it... The error message is below.
Uncaught TypeError: Cannot read property 'text' of undefined
It sounds super easy but I couldn't solve by my self. Could anyone help me out?
Additional Context
I'm using Meteor and React. I would like to pass the text inside of the object from the container to the class. I would like to render the text in render(). But it doesn't receive any data from the container... The console.log in the container works well and shows the object.
import React, { Component } from 'react';
import { createContainer } from 'meteor/react-meteor-data';
import { Questions } from '../../api/questions.js';
import PropTypes from 'prop-types';
import { Answers } from '../../api/answers.js';
import ReactDOM from 'react-dom';
import { Chart } from 'react-google-charts';
class MapClass extends React.Component{
handleAlternate(event){
event.preventDefault();
const country = ReactDOM.findDOMNode(this.refs.textInput).value.trim();
Answers.insert({
country,
yes: false,
question_id:this.props.match._id,
createdAt: new Date(), // current time
});
ReactDOM.findDOMNode(this.refs.textInput).value = '';
}
handleSubmit(event) {
event.preventDefault();
const country = ReactDOM.findDOMNode(this.refs.textInput).value.trim();
Answers.insert({
country,
yes: true,
question_id: this.props.match.params.id,
createdAt: new Date(), // current time
});
ReactDOM.findDOMNode(this.refs.textInput).value = '';
}
constructor(props) {
super(props);
this.state = {
options: {
title: 'Age vs. Weight comparison',
},
data: [
['Country', 'Popularity'],
['South America', 12],
['Canada', 5.5],
['France', 14],
['Russia', 5],
['Australia', 3.5],
],
};
this.state.data.push(['China', 40]);
}
render() {
return (
<div>
<h1>{this.props.title.text}</h1>
<Chart
chartType="GeoChart"
data={this.state.data}
options={this.state.options}
graph_id="ScatterChart"
width="900px"
height="400px"
legend_toggle
/>
<form className="new-task" onSubmit={this.handleSubmit.bind(this)} >
<input
type="text"
ref="textInput"
placeholder="Type to add new tasks"
/>
<button type="submit">Yes</button>
<button onClick={this.handleAlternate.bind(this)}>No</button>
</form>
</div>
);
}
}
export default MapContainer = createContainer(props => {
console.log(Questions.findOne({_id: props.match.params.id}));
return {
title: Questions.findOne({_id: props.match.params.id})
};
}, MapClass);

The problem here is that at the moment when the container is mounted, the data is not yet available. Since I do not see any subscriptions in your container I assume that you handle that elsewhere and thus there is no way of knowing when the data is ready. You have 2 options.
1) move the subscription into the container and use the subscription handle ready() function to assess if the data is ready. Show a spinner or something while it is not. Read this.
2) use lodash/get function (docs) to handle empty props. You would need to
npm install --save lodash
and then
import get from 'lodash/get';
and then in your class render method:
render() {
const text = get(this.props, 'title.text', 'you-can-even-define-a-default-value-here');
// then use `text` in your h1.
return (...);
}
Does this work for you?

Handsontable & React

I'm starting with react and trying to set up handsontable in my react app following:
react-handsontable
// import React...
import React from 'react';
import ReactDOM from 'react-dom';
// ... Handsontable with its main dependencies...
import moment from 'moment';
import numbro from 'numbro';
import pikaday from 'pikaday';
import Zeroclipboard from 'zeroclipboard';
import Handsontable from 'handsontable';
// ... and HotTable
import HotTable from 'react-handsontable';
class ExampleComponent extends React.Component {
constructor(props) {
super(props);
this.handsontableData = [
["", "Ford", "Volvo", "Toyota", "Honda"],
["2016", 10, 11, 12, 13],
["2017", 20, 11, 14, 13],
["2018", 30, 15, 12, 13]
];
}
render() {
return (
<div id="example-component">
<HotTable root="hot" data={this.handsontableData} colHeaders={true} rowHeaders={true} width="600" height="300" stretchH="all" />
</div>
);
}
}
Works so far but how do I get the instance of the table like in pure javascript
var ht = new Handsontable(document.getElementById('example1'), options);
ht.setDataAtCell(0, 0, 'new value');
Thanks, Tim

If you're trying to access the core methods, like 'setDataAtCell()', you can use refs to access them.
For example add the "ref='xyz'" attribute to the HTML element and you can then call it with "this.refs.xyz". I've modified your example below to illustrate. It adds a button that onClick runs a function to 'setDataAtCell'.
// import React...
import React from 'react';
import ReactDOM from 'react-dom';
// ... Handsontable with its main dependencies...
import moment from 'moment';
import numbro from 'numbro';
import pikaday from 'pikaday';
import Zeroclipboard from 'zeroclipboard';
import Handsontable from 'handsontable';
// ... and HotTable
import HotTable from 'react-handsontable';
class ExampleComponent extends React.Component {
constructor(props) {
super(props);
this.handsontableData = [
["", "Ford", "Volvo", "Toyota", "Honda"],
["2016", 10, 11, 12, 13],
["2017", 20, 11, 14, 13],
["2018", 30, 15, 12, 13]
];
}
handleClick(e) {
this.refs.hot.hotInstance.setDataAtCell(0, 0, 'new value')
}
render() {
return (
<div id="example-component">
<HotTable root="hot"
data={this.handsontableData}
colHeaders={true}
rowHeaders={true}
width="600"
height="300"
stretchH="all"
ref="hot"
/>
<br/>
<button onClick={(e)=>this.handleClick(e)}>Click Me</button>
</div>
);
}
}
export default ExampleComponent
This method can be used to access other methods like "getData()" which can be used to get a snapshot of the data in the table which can be saved to state or similar. So it's more lengthy than "ht" you can use "this.refs.hot.hotInstance" for similar affect.
You can read more about the ref attribute in "Refs and the DOM" in the React documentation.

To access the instance of HotTable component, use ref. However, don't use old way of using ref. As of version 16.3, React provides 2 ways :
using createRef API which is the recommended way
using callback ref
which is already available in earlier version, but better than the
old "string ref" way.
I only show how to use createRef here :
In your constructor, add the following :
this.refToHotIns=React.createRef();
The name of the field property is arbitrary, you can name it as you like.
In your render() method, change the JSX element to :
<HotTable ref={this.refToHotIns} data={this.handsontableData} colHeaders={true} rowHeaders=true} width="600" height="300" stretchH="all" />
Now, this.refToHotIns.current references to mounted HotTable instance. The Handsontable instance is stored under the hotInstance property of the wrapper component. So you can then access properties/methods of HotTable instance, like so :
this.refToHotIns.current.hotInstance.setDataAtCell(0, 0, 'new value');

It's pretty simple to write your own react wrapper for handsontable, and then you can create a reference to your HOT instance. Here is some sample React component code:
componentWillReceiveProps({ gridSpec }) {
if (gridSpec) {
const {columns, colHeaders, data} = gridSpec;
const container = document.getElementById(GRID_ID);
this.hotInstance = new handsontable(container, {
columns,
colHeaders,
data,
height: 600
});
}
}
shouldComponentUpdate () {
return false;
}
render () {
return (
<div style={{overflowX: 'hidden', height: '600px'}}>
<div id={GRID_ID} />
</div>
)
}

you have your data as an array defined in the constructor.
this.handsonetableData = [[First row],[second row]]
You could simply link that data to a state and setState inside your component. It should be really straightforward.
this.state = {
table: [[first line], [second line]]
}
Eventually going further you can write your own method that update a specific value of that array.
constructor (props) {
super(props)
this.state = {
table: [[first row], [second row]]
}
}
updateValueInTable (row, col, value)
checkIdontDoAnythingStupid()
let newTable = this.state.table
newTable[row][col] = value
this.setState({ table: newTable})
}
If you do not want to use the state and use something like redux you put the logic in the reducer and the triggers in actions. And there you are!
Of course is up to you how to check that you manipulate correctly your array, a lot of libraries can come to help (lodash and co.)