feat(infra): livedata #5562
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Who is this @example? |
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LiveData is a reactive data type. ## basic usage @example ```ts const livedata = new LiveData(0); // create livedata with initial value livedata.next(1); // update value console.log(livedata.value); // get current value livedata.subscribe(v => { // subscribe to value changes console.log(v); // 1 }); ``` ## observable LiveData is a rxjs observable, you can use rxjs operators. @example ```ts new LiveData(0).pipe( map(v => v + 1), filter(v => v > 1), ... ) ``` NOTICE: different from normal observable, LiveData will always emit the latest value when you subscribe to it. ## from observable LiveData can be created from observable or from other livedata. @example ```ts const A = LiveData.from( of(1, 2, 3, 4), // from observable 0 // initial value ); const B = LiveData.from( A.pipe(map(v => 'from a ' + v)), // from other livedata '' // initial value ); ``` NOTICE: LiveData.from will not complete when the observable completes, you can use `spreadComplete` option to change this behavior. ## Why is it called LiveData This API is very similar to LiveData in Android, as both are based on Observable, so I named it LiveData.
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LiveData is a reactive data type. ## basic usage @example ```ts const livedata = new LiveData(0); // create livedata with initial value livedata.next(1); // update value console.log(livedata.value); // get current value livedata.subscribe(v => { // subscribe to value changes console.log(v); // 1 }); ``` ## observable LiveData is a rxjs observable, you can use rxjs operators. @example ```ts new LiveData(0).pipe( map(v => v + 1), filter(v => v > 1), ... ) ``` NOTICE: different from normal observable, LiveData will always emit the latest value when you subscribe to it. ## from observable LiveData can be created from observable or from other livedata. @example ```ts const A = LiveData.from( of(1, 2, 3, 4), // from observable 0 // initial value ); const B = LiveData.from( A.pipe(map(v => 'from a ' + v)), // from other livedata '' // initial value ); ``` NOTICE: LiveData.from will not complete when the observable completes, you can use `spreadComplete` option to change this behavior. ## Why is it called LiveData This API is very similar to LiveData in Android, as both are based on Observable, so I named it LiveData.
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LiveData is a reactive data type.
basic usage
@example
observable
LiveData is a rxjs observable, you can use rxjs operators.
@example
NOTICE: different from normal observable, LiveData will always emit the latest value when you subscribe to it.
from observable
LiveData can be created from observable or from other livedata.
@example
NOTICE: LiveData.from will not complete when the observable completes, you can use
spreadCompleteoption to changethis behavior.
Why is it called LiveData
This API is very similar to LiveData in Android, as both are based on Observable, so I named it LiveData.