[英]Rendering an array of data with map() and JSX
I am trying to render an array with jsx, this array has a span inside and when trying to render it the output is [object Object] I am trying to add a tooltip inside, can you help me understand why this is happening?我正在尝试使用 jsx 渲染一个数组,该数组内部有一个跨度,当尝试渲染它时,output 是 [object Object] 我正在尝试在里面添加一个工具提示,你能帮我理解为什么会这样吗? I am using BootstrapTable with the react-bootstrap-table-plus library我正在使用带有 react-bootstrap-table-plus 库的 BootstrapTable
my code:我的代码:
<DataTableConfigurator
data={
this.props.configuracion.map(d => {
var s = d.servicios[0].fechaultimaactualizacion;
var ds = moment(s, 'DD - MM - YYYY HH:mm');
var fecha = ds.format('DD/MM/YYYY');
return {
NOMBRE: <a key={d.ID_TIPO_CONF} data-toggle="tooltip" title={["Última fecha actualización :" + fecha]}>{d.nombredivision} </a>,
ID_TIPO_CONF: d.iD_TIPO_CONFIGURACION == 1 ? 'Manual' : 'Automática',
}
}
}
>
properties of my DataTableConfigurator:我的 DataTableConfigurator 的属性:
class DataTableProperties extends PureComponent {
constructor(props) {
super(props);
this.state = {
originalData: this.props.data,
cloneData: [...this.props.data],
searchFilterValue: '',
noDataMessage: this.props.noDataMessage,
page: 1,
sizePerPage: this.props.sizePerPage || 5
};
}
componentWillUpdate(prevProps) {
if (prevProps.data.length != this.state.originalData.length) {
this.cloneOriginalData(prevProps.data);
} else {
if (prevProps.data.length != 0) {
var obj = [];
for (var i = 0; i < prevProps.data.length; i++) {
var e = prevProps.data[i];
if (e[Object.keys(e)[0]] != this.state.originalData[i][Object.keys(e)[0]]) {
this.cloneOriginalData(prevProps.data);
break;
}
}
//if (obj.length != 0) {
//}
}
}
}
componentWillUnmount() {
this.setState({
originalData: [],
cloneData: [],
searchFilterValue: '',
noDataMessage: '',
page: 1
});
}
cloneOriginalData = data => {
var originalData = data;
var cloneData = [...originalData];
this.setState({ originalData, cloneData });
}
searchFilter = input => {
var searchFilterValue = input.target.value;;
var originalData = this.state.originalData;
var cloneData = [];
if (searchFilterValue != '') {
for (var i = 0; i < originalData.length; i++) {
var row = originalData[i];
var keys = Object.keys(row);
for (var j = 0; j < keys.length; j++) {
var cell = row[keys[j]];
if (typeof cell !== 'object') {
cell = String(cell).toLowerCase();
if (cell.indexOf(searchFilterValue.toLowerCase()) > -1) {
cloneData.push(row);
break;
}
}
}
}
} else {
cloneData = [...originalData];
}
this.setState({ cloneData, searchFilterValue, page: 1 });
}
render() {
const customTotal = (from, to, size) => (
<span className="react-bootstrap-table-pagination-total">
Mostrando {from} a {to} de {size} Resultados
</span>
);
const headercolor = { color: "#FFFF" };
const options = {
paginationSize: 3,
pageStartIndex: 1,
sizePerPage: 15, // which size per page you want to locate as default
prePage: 'Atrás', // Previous page button text
nextPage: 'Siguiente', // Next page button text
firstPage: 'Primero', // First page button text
lastPage: 'Último', // Last page button text
noDataText: (<div className="text-center">No se encontraron datos</div>),
showTotal: true,
paginationShowsTotal: customTotal,
page: this.state.page,
onPageChange: e => { this.setState({ page: e }); },
disablePageTitle: true,
sizePerPageList: [{
text: this.state.sizePerPage, value: this.state.sizePerPage
}, {
text: this.state.sizePerPage * 2, value: this.state.sizePerPage * 2
}, {
text: 'Todos', value: this.state.cloneData.length
}]
};
//function priceFormatter(cell, row) {
// return '<span></span>' + row;
//}
return (
<div>
<div className="row mb-3">
<div className="col-1 offset-9">
<label className="p-1">Buscar:</label>
</div>
<div className="col-2">
<input type="text" className="form-control form-control w-100" value={this.state.searchFilterValue} onChange={input => { this.searchFilter(input); }} />
</div>
</div>
<div className="row">
<div className="col-12">
<BootstrapTable striped hover condensed
key={`data_${new Date().getTime()}`}
headerStyle={{ background: '#df6727' }}
containerStyle={{ border: '#f0f0f0 1.5px solid' }}
data={this.state.cloneData}
bootstrap3={true}
noDataIndication={() => (<div className="text-center"> {this.state.noDataMessage == null ? 'No se encontraron resultados' : this.state.noDataMessage}</div>)}
pagination={true}
options={options}
>
<TableHeaderColumn width='200' dataField="NOMBRE"><div style={headercolor}>División</div></TableHeaderColumn>
<TableHeaderColumn width='150' dataField="ID_TIPO_CONF" isKey={true}><div style={headercolor}>Tipo Conf.</div></TableHeaderColumn>
<TableHeaderColumn width='150' dataField="NOMBRESERV01"><div style={headercolor}>Servicio 1</div></TableHeaderColumn>
<TableHeaderColumn width='150' dataField="NOMBRESERV02"><div style={headercolor}>Servicio 2</div></TableHeaderColumn>
<TableHeaderColumn width='200' dataField="NOMBRESERV03"><div style={headercolor}>Servicio 3</div></TableHeaderColumn>
<TableHeaderColumn width='150' dataField="NOMBRESERV04"><div style={headercolor}>Servicio 4</div></TableHeaderColumn>
<TableHeaderColumn width='150' dataField="NOMBRESERV05"><div style={headercolor}>Servicio 5</div></TableHeaderColumn>
<TableHeaderColumn width='150' dataField="NOMBRESERV06"><div style={headercolor}>Servicio 6</div></TableHeaderColumn>
<TableHeaderColumn width='150' dataField="NOMBRESERV07"><div style={headercolor}>Servicio 7</div></TableHeaderColumn>
</BootstrapTable>
</div>
</div>
</div>
);
}
}
export default DataTableProperties;
any solution?有什么解决办法吗?
The only way to get that is by printing an object
inside a string
field.获得它的唯一方法是在string
字段中打印object
。
Example:例子:
console.log(`${{}}`);
// [object Object]
console.log('' + {});
// [object Object]
console.log({});
// > {}
In <DataTableConfigurator />
you print <a...>{d.nombredivision}</a>
, then appears the "Manual", so I guess here's the problem.在<DataTableConfigurator />
你打印<a...>{d.nombredivision}</a>
,然后出现“手册”,所以我猜这就是问题所在。
As you try something like <a>{{}}</a>
which prints "[object Object]".当你尝试像<a>{{}}</a>
这样打印“[object Object]”的东西时。
Which is strange because of React, it should throw Error: Objects are not valid as a React child
.由于 React,这很奇怪,它应该抛出Error: Objects are not valid as a React child
。 Plain HTML/JS let's you do that, the result is exactly what you already get.普通的 HTML/JS 让你这样做,结果正是你已经得到的。
Try debugging that d.nombredivision
to see what it actually is.尝试调试该d.nombredivision
以查看它实际上是什么。
My solution: in DataTableConfigurator create one function for each header or element:我的解决方案:在 DataTableConfigurator 中为每个 header 或元素创建一个 function:
1.- where row is your row in list original. 1.- row 是您在原始列表中的行。
cellDivision(cell, row, enumObject, rowIndex) {
return (
<a data-toggle="tooltip" title={["Última fecha actualización :" + row.FECHA]}>
{row.NOMBRE}
</a>
)
}
2.- In header List add Dataformat: 2.- 在 header 列表中添加数据格式:
<TableHeaderColumn width="130" dataField="NOMBRE" dataFormat={this.cellDivision.bind(this)}><div style={headercolor}>División</div></TableHeaderColumn>
Thanks!谢谢!
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