I create a component like so:
let bList = bObj.map((obj, index) => {
let {
icon, htmlType, onClick } = obj;
let _b = <Button
htmlType = { htmlType }
icon = { icon }
onClick = { () => {this._onClick()} } />
if(someVar) {
return (
<AnotherComp style = { someVar }
key = { index } >
{ _b }
</AnotherComp>
);
} else {
return (
{ _b }
);
}
});
bList =
<div style = { wrap }>
<myComp style = { grp }>
{ buttonsList }
</myComp>
</div>
return bList;
That returns me
Uncaught Error: Objects are not valid as a React child (found: object with keys {_bu}). If you meant to render a collection of children, use an array instead or wrap the object using createFragment(object) from the React add-ons. Check the render method of
MyComp
.
However, when I write it like this:
let bList = bObj.map((obj, index) => {
let {
icon, htmlType, onClick } = obj;
if(someVar) {
return (
<AnotherComp style = { someVar }
key = { index } >
<Button
htmlType = { htmlType }
icon = { icon }
onClick = { () => {this._onClick()} } />
</AnotherComp>
);
} else {
return (
<Button
htmlType = { htmlType }
icon = { icon }
onClick = { () => {this._onClick()} } />
);
}
});
bList =
<div style = { wrap }>
<MyComp style = { grp }>
{ buttonsList }
</MyComp>
</div>
return bList;
It works. Where is the difference between saving <Button ../>
in a variable and writing it in there directly?!
Difference is you are using extra {}
, remove that it will work:
return _b;
Meaning of return ({ _b })
is:
return ({'_b' : _b});
That means you are returning an object
with key _b
, not the JSX
.
Check this snippet:
let a = 5; let b = { a }; console.log('b = ', b);
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