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May 1, 2018 23:58
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Selector Creators Selector Creators Example // source https://jsbin.com/fifoyeg
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta name="description" content="Selector Creators Example"> | |
<meta charset="utf-8"> | |
<meta name="viewport" content="width=device-width"> | |
<title>Selector Creators</title> | |
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/5.5.8/Rx.min.js"></script> | |
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/reselect/3.0.1/reselect.min.js"></script> | |
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.min.js"></script> | |
<script src="https://code.jquery.com/jquery-3.1.0.js"></script> | |
<style> | |
body { | |
font-size: 24px; | |
} | |
</style> | |
</head> | |
<body> | |
<button onclick="updateDate()">Update Chart Date</button> | |
<button onclick="clearResults()">Reset</button> | |
<p id="container"></p> | |
<ul id="output"> | |
</ul> | |
<script type="text/javascript"> | |
var $output = $('#output'); | |
</script> | |
<script id="jsbin-javascript"> | |
// State Setup | |
let normState = { | |
charts: { | |
tokens: Immutable.OrderedSet([1,2,3]), | |
encodings: Immutable.Map([ | |
[1,'encoding1'], | |
[2,'encoding2'], | |
[3,'encoding3'] | |
]), | |
titles: Immutable.Map([ | |
[1,'Chart Title 1'], | |
[2,'Chart Title 2'], | |
[3,'Chart Title 3'] | |
]), | |
createDates: Immutable.Map([ | |
[1, new Date()], | |
[2, new Date()], | |
[3, new Date()] | |
]) | |
} | |
}; | |
function output(out) { | |
$output.append('<li>' + out + '</li>'); | |
} | |
let stateSubject = new Rx.BehaviorSubject(normState); | |
function select(selector) { | |
return stateSubject.map(selector).distinctUntilChanged(); | |
} | |
// Selector and the subscriber | |
function createChartSelector(token) { | |
return Reselect.createSelector( | |
state => state.charts.encodings.get(token), | |
state => state.charts.titles.get(token), | |
state => state.charts.createDates.get(token), | |
(encoding, title, date) => ({ | |
token, | |
encoding, | |
title, | |
date | |
}) | |
); | |
} | |
// Using the selectors | |
select(state => state.charts.tokens) // Get the tokens | |
.switchMap(tokens => { // switchMap for cancel support | |
return Rx.Observable.merge( | |
...tokens | |
.map(t => | |
select(createChartSelector(t)) // Create the selector | |
).toArray() | |
); | |
}) | |
.subscribe(c => output(c.token + ': ' + c.date.getTime())) | |
// Updates a single chart's created date | |
function updateDate() { | |
let newState = Object.assign({}, { | |
charts: Object.assign({}, normState.charts, { | |
createDates: normState.charts.createDates.set(1, new Date()) | |
}) | |
}); | |
stateSubject.next(newState); | |
} | |
function clearResults() { | |
stateSubject.next({ charts: { | |
tokens: Immutable.OrderedSet([]), | |
encodings: Immutable.Map([]), | |
titles: Immutable.Map([]), | |
createDates: Immutable.Map([]) | |
}}); | |
$output.html(''); | |
stateSubject.next(normState); | |
} | |
</script> | |
<script id="jsbin-source-javascript" type="text/javascript">// State Setup | |
let normState = { | |
charts: { | |
tokens: Immutable.OrderedSet([1,2,3]), | |
encodings: Immutable.Map([ | |
[1,'encoding1'], | |
[2,'encoding2'], | |
[3,'encoding3'] | |
]), | |
titles: Immutable.Map([ | |
[1,'Chart Title 1'], | |
[2,'Chart Title 2'], | |
[3,'Chart Title 3'] | |
]), | |
createDates: Immutable.Map([ | |
[1, new Date()], | |
[2, new Date()], | |
[3, new Date()] | |
]) | |
} | |
}; | |
function output(out) { | |
$output.append('<li>' + out + '</li>'); | |
} | |
let stateSubject = new Rx.BehaviorSubject(normState); | |
function select(selector) { | |
return stateSubject.map(selector).distinctUntilChanged(); | |
} | |
// Selector and the subscriber | |
function createChartSelector(token) { | |
return Reselect.createSelector( | |
state => state.charts.encodings.get(token), | |
state => state.charts.titles.get(token), | |
state => state.charts.createDates.get(token), | |
(encoding, title, date) => ({ | |
token, | |
encoding, | |
title, | |
date | |
}) | |
); | |
} | |
// Using the selectors | |
select(state => state.charts.tokens) // Get the tokens | |
.switchMap(tokens => { // switchMap for cancel support | |
return Rx.Observable.merge( | |
...tokens | |
.map(t => | |
select(createChartSelector(t)) // Create the selector | |
).toArray() | |
); | |
}) | |
.subscribe(c => output(c.token + ': ' + c.date.getTime())) | |
// Updates a single chart's created date | |
function updateDate() { | |
let newState = Object.assign({}, { | |
charts: Object.assign({}, normState.charts, { | |
createDates: normState.charts.createDates.set(1, new Date()) | |
}) | |
}); | |
stateSubject.next(newState); | |
} | |
function clearResults() { | |
stateSubject.next({ charts: { | |
tokens: Immutable.OrderedSet([]), | |
encodings: Immutable.Map([]), | |
titles: Immutable.Map([]), | |
createDates: Immutable.Map([]) | |
}}); | |
$output.html(''); | |
stateSubject.next(normState); | |
}</script></body> | |
</html> |
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// State Setup | |
let normState = { | |
charts: { | |
tokens: Immutable.OrderedSet([1,2,3]), | |
encodings: Immutable.Map([ | |
[1,'encoding1'], | |
[2,'encoding2'], | |
[3,'encoding3'] | |
]), | |
titles: Immutable.Map([ | |
[1,'Chart Title 1'], | |
[2,'Chart Title 2'], | |
[3,'Chart Title 3'] | |
]), | |
createDates: Immutable.Map([ | |
[1, new Date()], | |
[2, new Date()], | |
[3, new Date()] | |
]) | |
} | |
}; | |
function output(out) { | |
$output.append('<li>' + out + '</li>'); | |
} | |
let stateSubject = new Rx.BehaviorSubject(normState); | |
function select(selector) { | |
return stateSubject.map(selector).distinctUntilChanged(); | |
} | |
// Selector and the subscriber | |
function createChartSelector(token) { | |
return Reselect.createSelector( | |
state => state.charts.encodings.get(token), | |
state => state.charts.titles.get(token), | |
state => state.charts.createDates.get(token), | |
(encoding, title, date) => ({ | |
token, | |
encoding, | |
title, | |
date | |
}) | |
); | |
} | |
// Using the selectors | |
select(state => state.charts.tokens) // Get the tokens | |
.switchMap(tokens => { // switchMap for cancel support | |
return Rx.Observable.merge( | |
...tokens | |
.map(t => | |
select(createChartSelector(t)) // Create the selector | |
).toArray() | |
); | |
}) | |
.subscribe(c => output(c.token + ': ' + c.date.getTime())) | |
// Updates a single chart's created date | |
function updateDate() { | |
let newState = Object.assign({}, { | |
charts: Object.assign({}, normState.charts, { | |
createDates: normState.charts.createDates.set(1, new Date()) | |
}) | |
}); | |
stateSubject.next(newState); | |
} | |
function clearResults() { | |
stateSubject.next({ charts: { | |
tokens: Immutable.OrderedSet([]), | |
encodings: Immutable.Map([]), | |
titles: Immutable.Map([]), | |
createDates: Immutable.Map([]) | |
}}); | |
$output.html(''); | |
stateSubject.next(normState); | |
} |
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