react switch case
render () {
return (
<div>
<div>
{/* removed for brevity */}
</div>
{
{
'foo': <Foo />,
'bar': <Bar />
}[param]
}
<div>
{/* removed for brevity */}
</div>
</div>
)
}switch in react
renderSwitch(param) {
switch(param) {
case 'foo':
return 'bar';
default:
return 'foo';
}
}
render() {
return (
<div>
<div>
// removed for brevity
</div>
{this.renderSwitch(param)}
<div>
// removed for brevity
</div>
</div>
);
}typescript react switch case component
render() {
return (
<>
{
{
foo: <Foo />,
bar: <Bar />
}[param]
}
</>
)
}switch statement react
import * as actionTypes from "../store/actions/actionTypes";
const initialState = {
counter: 0,
name: "Ginny",
tasks: ["cut onion", "drive car"],
};
const reducer = (state = initialState, action) => {
switch (action.type) {
case actionTypes.INCREMENT:
return {
...state,
counter: state.counter + 1,
};
case actionTypes.DECREMENT:
return {
...state,
counter: state.counter - 1,
};
case actionTypes.ADD:
return {
...state,
counter: state.counter + action.value,
};
case actionTypes.ADD_TEN:
return {
...state,
counter: state.counter + action.payload,
};
default:
return state;
}
};
export default reducer;how to use switch case in react jsx
/* Hint: Use JS IIFE (Immediately invoked function expression) in JSX */
import React from 'react';
import ListView from './ListView';
import TableView from './TableView';
function DataView({
currView,
data,
onSelect,
onChangeStatus,
viewTodo,
editTodo,
deleteTodo,
}) {
return (
<div>
{(function () {
switch (currView) {
case 'table':
return (
<TableView
todos={data}
onSelect={onSelect}
onChangeStatus={onChangeStatus}
viewTodo={viewTodo}
editTodo={editTodo}
deleteTodo={deleteTodo}
/>
);
case 'list':
return (
<ListView
todos={data}
onSelect={onSelect}
onChangeStatus={onChangeStatus}
viewTodo={viewTodo}
editTodo={editTodo}
deleteTodo={deleteTodo}
/>
);
default:
break;
}
})()}
</div>
);
}
export default DataView;Copyright © 2021 Codeinu
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