Mixing
How to find/filter state from react redux
Im trying to find data from mapStateToProps with passing params to it.
const mapStateToProps = (state, props) => {
const categoryId = props.match.params.id;
return {
category: state.categories.find((item) => item.id === categoryId)
};
};
export default connect(mapStateToProps)(categoryForm);
When I try (item.id === 1) I get the data of category, but when I try (item.id === categoryId) data of category is undefined. And I try to console categoryId, it's ok I get the id from params but why it's not working when I try like this (item.id === categoryId) ?
categoryAction.js
import api from '../api';
import { FETCH_CATEGORIES } from '../types';
export function setCategories(categories){
return {
type: FETCH_CATEGORIES,
categories
}
}
export const fecthCategory = () => dispatch =>
api.category.getCategories().then(categories =>
dispatch(setCategories(categories)))
categoryReducer.js
import { FETCH_CATEGORIES } from '../types';
export default function categories(state = , action ={}){
switch(action.type){
case FETCH_CATEGORIES:
return action.categories;
default: return state;
}
}
rootReducers.js
import { combineReducers } from 'redux';
import categories from './reducers/categoryReducer.js';
export default combineReducers({
categories
});
reactjs redux react-redux
asked Nov 20 '18 at 16:10
Tsabit A. AzizTsabit A. Aziz
194
add a comment |
Im trying to find data from mapStateToProps with passing params to it.
const mapStateToProps = (state, props) => {
const categoryId = props.match.params.id;
return {
category: state.categories.find((item) => item.id === categoryId)
};
};
export default connect(mapStateToProps)(categoryForm);
When I try (item.id === 1) I get the data of category, but when I try (item.id === categoryId) data of category is undefined. And I try to console categoryId, it's ok I get the id from params but why it's not working when I try like this (item.id === categoryId) ?
categoryAction.js
import api from '../api';
import { FETCH_CATEGORIES } from '../types';
export function setCategories(categories){
return {
type: FETCH_CATEGORIES,
categories
}
}
export const fecthCategory = () => dispatch =>
api.category.getCategories().then(categories =>
dispatch(setCategories(categories)))
categoryReducer.js
import { FETCH_CATEGORIES } from '../types';
export default function categories(state = , action ={}){
switch(action.type){
case FETCH_CATEGORIES:
return action.categories;
default: return state;
}
}
rootReducers.js
import { combineReducers } from 'redux';
import categories from './reducers/categoryReducer.js';
export default combineReducers({
categories
});
reactjs redux react-redux
asked Nov 20 '18 at 16:10
Tsabit A. AzizTsabit A. Aziz
194
add a comment |
Im trying to find data from mapStateToProps with passing params to it.
const mapStateToProps = (state, props) => {
const categoryId = props.match.params.id;
return {
category: state.categories.find((item) => item.id === categoryId)
};
};
export default connect(mapStateToProps)(categoryForm);
When I try (item.id === 1) I get the data of category, but when I try (item.id === categoryId) data of category is undefined. And I try to console categoryId, it's ok I get the id from params but why it's not working when I try like this (item.id === categoryId) ?
categoryAction.js
import api from '../api';
import { FETCH_CATEGORIES } from '../types';
export function setCategories(categories){
return {
type: FETCH_CATEGORIES,
categories
}
}
export const fecthCategory = () => dispatch =>
api.category.getCategories().then(categories =>
dispatch(setCategories(categories)))
categoryReducer.js
import { FETCH_CATEGORIES } from '../types';
export default function categories(state = , action ={}){
switch(action.type){
case FETCH_CATEGORIES:
return action.categories;
default: return state;
}
}
rootReducers.js
import { combineReducers } from 'redux';
import categories from './reducers/categoryReducer.js';
export default combineReducers({
categories
});
reactjs redux react-redux
asked Nov 20 '18 at 16:10
Tsabit A. AzizTsabit A. Aziz
194
Im trying to find data from mapStateToProps with passing params to it.
const mapStateToProps = (state, props) => {
const categoryId = props.match.params.id;
return {
category: state.categories.find((item) => item.id === categoryId)
};
};
export default connect(mapStateToProps)(categoryForm);
When I try (item.id === 1) I get the data of category, but when I try (item.id === categoryId) data of category is undefined. And I try to console categoryId, it's ok I get the id from params but why it's not working when I try like this (item.id === categoryId) ?
categoryAction.js
import api from '../api';
import { FETCH_CATEGORIES } from '../types';
export function setCategories(categories){
return {
type: FETCH_CATEGORIES,
categories
}
}
export const fecthCategory = () => dispatch =>
api.category.getCategories().then(categories =>
dispatch(setCategories(categories)))
categoryReducer.js
import { FETCH_CATEGORIES } from '../types';
export default function categories(state = , action ={}){
switch(action.type){
case FETCH_CATEGORIES:
return action.categories;
default: return state;
}
}
rootReducers.js
import { combineReducers } from 'redux';
import categories from './reducers/categoryReducer.js';
export default combineReducers({
categories
});
reactjs redux react-redux
reactjs redux react-redux
asked Nov 20 '18 at 16:10
Tsabit A. AzizTsabit A. Aziz
194
asked Nov 20 '18 at 16:10
Tsabit A. AzizTsabit A. Aziz
194
asked Nov 20 '18 at 16:10
Tsabit A. AzizTsabit A. Aziz
194
asked Nov 20 '18 at 16:10
Tsabit A. AzizTsabit A. Aziz
194
asked Nov 20 '18 at 16:10
Tsabit A. AzizTsabit A. Aziz
194
194
add a comment |
add a comment |
1 Answer
1
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My guess is categoryId is a string and you're using strict equality === for comparison.
Try state.categories.find((item) => item.id === Number(categoryId)).
Hope that helps.
answered Nov 20 '18 at 16:12
PehotaPehota
1064
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
My guess is categoryId is a string and you're using strict equality === for comparison.
Try state.categories.find((item) => item.id === Number(categoryId)).
Hope that helps.
answered Nov 20 '18 at 16:12
PehotaPehota
1064
add a comment |
My guess is categoryId is a string and you're using strict equality === for comparison.
Try state.categories.find((item) => item.id === Number(categoryId)).
Hope that helps.
answered Nov 20 '18 at 16:12
PehotaPehota
1064
add a comment |
My guess is categoryId is a string and you're using strict equality === for comparison.
Try state.categories.find((item) => item.id === Number(categoryId)).
Hope that helps.
answered Nov 20 '18 at 16:12
PehotaPehota
1064
My guess is categoryId is a string and you're using strict equality === for comparison.
Try state.categories.find((item) => item.id === Number(categoryId)).
Hope that helps.
answered Nov 20 '18 at 16:12
PehotaPehota
1064
answered Nov 20 '18 at 16:12
PehotaPehota
1064
answered Nov 20 '18 at 16:12
PehotaPehota
1064
answered Nov 20 '18 at 16:12
PehotaPehota
1064
1064
add a comment |
add a comment |
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