如何将对象变成 HTML
How to turn objects in to HTML
我如何得到这个:
<li>
<div class='myClass1'>myData1</div>
<div class='myClass2'>myData2</div>
<div class='myClass3'>myData3</div>
<div class='myClass4'>myData4</div>
</li>
来自此代码
var data1 = {"Columns":[{"Title":"Title1","HTMLClass":"g1_Title"},{"Title":"Title2","HTMLClass":"g2_Title"},{"Title":"Title3","HTMLClass":"g3_Title"}],"Rows":[{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]}]};
var GridRow = React.createClass({
render: function() {
var data = [], columns;
// puts all the data in to a better structure (ideally the props would have this structure or this manipulation would be done on onReceiveProps)
if(this.props.columns){
for(var ii = 0; ii < this.props.columns.length; ii++){
data.push({
class: this.props.columns[i].HTMLClass,
contents: this.props.Cell[i]
})
}
}
// Its best to map JSX elements and not store them in arrays
columns = data.map(function(col) {
return <div className= + {col.class}> {col.contents} </div>;
});
return (
<div>
<li>
{columns}
</li>
</div>
);
}
});
var GridHead = React.createClass({
render: function() {
if(this.props.data){
var cell = this.props.data.Title;
var htmlClass = this.props.data.HTMLClass;
}
return (
<div className={htmlClass}>{cell}</div>
);
}
});
var GridList = React.createClass({
render: function() {
if(this.props.data){
var header = this.props.data.Columns.map(function (columns) {
return (
<GridHead data={columns} />
);
});
var row = this.props.data.Rows.map(function (row, i) {
return (
<GridRow columns={data1.Columns} cells={row.Cells} key={i} />
);
});
}
return (
<ul>
<li>{header}</li>
{row}
</ul>
);
}
});
var GridBox = React.createClass({
render: function(){
return (
<GridList data={data1} />
);
}
});
现在的输出是这样的
In file "~/Scripts/Grid.jsx": Parse Error: Line 26: XJS value should
be either an expression or a quoted XJS text (at line 26 column 35)
Line: 52 Column:3
正如您最初提出的问题只是与 GridRow
组件有关,我没有触及任何其他组件。
您的主要问题是您在 GridRow 组件中分配 className = + //something
这不是正确的分配方式。还有其他错误,例如缺少 div 标签。
更好的 GridRow
当组件安装时,会创建一个 columndata
变量并使用 formatData();
.
格式化数据填充
我不建议您在此组件中进行数据格式化(尽管它是可行的)。您应该在顶级组件中格式化数据并向下传递格式化数据,或者接受正确结构的数据。
我的 GridRow
组成部分:
var GridRow = React.createClass({
componentWillMount: function() {
this.columndata = [];
this.formatData();
},
formatData: function() { // Formats prop data into something manageable
if (this.props.columns && this.props.cells) {
for(var ii = 0; ii < this.props.columns.length; ii++){
this.columndata.push({
class: this.props.columns[ii].HTMLClass,
contents: this.props.cells[ii]
})
}
this.forceUpdate(); // Forces a rerender
}
},
componentDidUpdate: function(prevProps, prevState) {
// If this component receives the props late
if (!prevProps.cells && !prevProps.columns) {
this.formatData();
}
},
render: function() {
var columns;
// Its best to map JSX elements and not store them in arrays
columns = this.columndata.map(function(col) {
return <div className={col.class}> {col.contents} </div>;
});
return (
<div>
<li>
{columns}
</li>
</div>
);
}
});
我认为重要的是要注意避免将 JSX 元素存储在数组中。
我认为你基本上是赚钱的,除了你缺少类名和 div 标签。
我如何得到这个:
<li>
<div class='myClass1'>myData1</div>
<div class='myClass2'>myData2</div>
<div class='myClass3'>myData3</div>
<div class='myClass4'>myData4</div>
</li>
来自此代码
var data1 = {"Columns":[{"Title":"Title1","HTMLClass":"g1_Title"},{"Title":"Title2","HTMLClass":"g2_Title"},{"Title":"Title3","HTMLClass":"g3_Title"}],"Rows":[{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]},{"Cells":["Cell0","Cell1","Cell2"]}]};
var GridRow = React.createClass({
render: function() {
var data = [], columns;
// puts all the data in to a better structure (ideally the props would have this structure or this manipulation would be done on onReceiveProps)
if(this.props.columns){
for(var ii = 0; ii < this.props.columns.length; ii++){
data.push({
class: this.props.columns[i].HTMLClass,
contents: this.props.Cell[i]
})
}
}
// Its best to map JSX elements and not store them in arrays
columns = data.map(function(col) {
return <div className= + {col.class}> {col.contents} </div>;
});
return (
<div>
<li>
{columns}
</li>
</div>
);
}
});
var GridHead = React.createClass({
render: function() {
if(this.props.data){
var cell = this.props.data.Title;
var htmlClass = this.props.data.HTMLClass;
}
return (
<div className={htmlClass}>{cell}</div>
);
}
});
var GridList = React.createClass({
render: function() {
if(this.props.data){
var header = this.props.data.Columns.map(function (columns) {
return (
<GridHead data={columns} />
);
});
var row = this.props.data.Rows.map(function (row, i) {
return (
<GridRow columns={data1.Columns} cells={row.Cells} key={i} />
);
});
}
return (
<ul>
<li>{header}</li>
{row}
</ul>
);
}
});
var GridBox = React.createClass({
render: function(){
return (
<GridList data={data1} />
);
}
});
现在的输出是这样的
In file "~/Scripts/Grid.jsx": Parse Error: Line 26: XJS value should be either an expression or a quoted XJS text (at line 26 column 35) Line: 52 Column:3
正如您最初提出的问题只是与 GridRow
组件有关,我没有触及任何其他组件。
您的主要问题是您在 GridRow 组件中分配 className = + //something
这不是正确的分配方式。还有其他错误,例如缺少 div 标签。
更好的 GridRow
当组件安装时,会创建一个 columndata
变量并使用 formatData();
.
我不建议您在此组件中进行数据格式化(尽管它是可行的)。您应该在顶级组件中格式化数据并向下传递格式化数据,或者接受正确结构的数据。
我的 GridRow
组成部分:
var GridRow = React.createClass({
componentWillMount: function() {
this.columndata = [];
this.formatData();
},
formatData: function() { // Formats prop data into something manageable
if (this.props.columns && this.props.cells) {
for(var ii = 0; ii < this.props.columns.length; ii++){
this.columndata.push({
class: this.props.columns[ii].HTMLClass,
contents: this.props.cells[ii]
})
}
this.forceUpdate(); // Forces a rerender
}
},
componentDidUpdate: function(prevProps, prevState) {
// If this component receives the props late
if (!prevProps.cells && !prevProps.columns) {
this.formatData();
}
},
render: function() {
var columns;
// Its best to map JSX elements and not store them in arrays
columns = this.columndata.map(function(col) {
return <div className={col.class}> {col.contents} </div>;
});
return (
<div>
<li>
{columns}
</li>
</div>
);
}
});
我认为重要的是要注意避免将 JSX 元素存储在数组中。
我认为你基本上是赚钱的,除了你缺少类名和 div 标签。