我很难从ReactGridLayout库中获得此代码示例。我想我已经解决了css文件路径中的一些问题,但是我不确定该怎么做。
链接到功能示例: https://strml.github.io/react-grid-layout/examples/6-dynamic-add-remove.html
import React from "react";
import { WidthProvider, Responsive } from "react-grid-layout";
import _ from "lodash";
const ResponsiveReactGridLayout = WidthProvider(Responsive);
/**
* This layout demonstrates how to use a grid with a dynamic number of elements.
*/
class AddRemoveLayout extends React.PureComponent {
static defaultProps = {
className: "layout",
cols: { lg: 12, md: 10, sm: 6, xs: 4, xxs: 2 },
rowHeight: 100
};
constructor(props) {
super(props);
this.state = {
items: [0, 1, 2, 3, 4].map(function(i, key, list) {
return {
i: i.toString(),
x: i * 2,
y: 0,
w: 2,
h: 2,
add: i === (list.length - 1).toString()
};
}),
newCounter: 0
};
this.onAddItem = this.onAddItem.bind(this);
this.onBreakpointChange = this.onBreakpointChange.bind(this);
}
createElement(el) {
const removeStyle = {
position: "absolute",
right: "2px",
top: 0,
cursor: "pointer"
};
const i = el.add ? "+" : el.i;
return (
<div key={i} data-grid={el}>
{el.add ? (
<span
className="add text"
onClick={this.onAddItem}
title="You can add an item by clicking here, too."
>
Add +
</span>
) : (
<span className="text">{i}</span>
)}
<span
className="remove"
style={removeStyle}
onClick={this.onRemoveItem.bind(this, i)}
>
x
</span>
</div>
);
}
onAddItem() {
/*eslint no-console: 0*/
console.log("adding", "n" + this.state.newCounter);
this.setState({
// Add a new item. It must have a unique key!
items: this.state.items.concat({
i: "n" + this.state.newCounter,
x: (this.state.items.length * 2) % (this.state.cols || 12),
y: Infinity, // puts it at the bottom
w: 2,
h: 2
}),
// Increment the counter to ensure key is always unique.
newCounter: this.state.newCounter + 1
});
}
// We're using the cols coming back from this to calculate where to add new items.
onBreakpointChange(breakpoint, cols) {
this.setState({
breakpoint: breakpoint,
cols: cols
});
}
onLayoutChange(layout) {
this.props.onLayoutChange(layout);
this.setState({ layout: layout });
}
onRemoveItem(i) {
console.log("removing", i);
this.setState({ items: _.reject(this.state.items, { i: i }) });
}
render() {
return (
<div>
<button onClick={this.onAddItem}>Add Item</button>
<ResponsiveReactGridLayout
onLayoutChange={this.onLayoutChange}
onBreakpointChange={this.onBreakpointChange}
{...this.props}
>
{_.map(this.state.items, el => this.createElement(el))}
</ResponsiveReactGridLayout>
</div>
);
}
}
module.exports = AddRemoveLayout;
if (require.main === module) {
require("../test-hook.jsx")(module.exports);
}
答案 0 :(得分:0)
按照 https://github.com/webpack/webpack/issues/3997 和 https://github.com/webpack/webpack/releases/tag/v2.2.0-rc.5
module.exports是只读且未定义
我们需要使用\b(?:(?![A-Z]\d{3,6}[A-Z0-9]+).)+