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H to show hint;
A reads text to speech;
32 Cards in this Set
- Front
- Back
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navigator.geolocation
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geolcation object
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navigator.geolocation.getCurrentPosition (3 params): success callback
error callback options |
one time location request
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showCoordinates(position)
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success callback
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timestamp AND position.coords:
coords.latitude coords.longitude coords.accuracy coords.altitude coords.altitudeAccuracy coords.heading coords.speed |
success position object
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showError(error)
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error callback
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error.message AND error.code: error.PERMISSION_DENIED
error.POSITION_UNAVAILABLE error.TIMEOUT error.UNKNOWN_ERROR |
error object
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navigator.geolocation.watchPosition(showPosition) (same params as one time request)
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repeated updat request
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clearWatch()
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stop repeated update request
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enableHighAccuracy (bool)
timeout (in milliseconds) maximumAge (milliseconds) |
geolocation request options
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across window and browser lifetimes
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local storage persistance
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for the session only - lost when window or browser is closed
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session storage persistance
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to any window or tab from the same location where the values were created (scheme, host & port)
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local storage availability
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within the window or tab that created them (to prevent data leakage between windows)
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session storage availability
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window.sessionStorage
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session storage object
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window.localStorage
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local storage object
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window.sessionStorage.setItem('key','value')
OR window.sessionStorage.key = 'value' OR window.sessionStorage['key'] = 'value' |
set session storage value (same for local)
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window.sessionStorage.removeItem('key')
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remove session storage item (same for local)
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window.sessionStorage.clear();
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clear all session storage (same for local)
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window.addEventListener('storage', receiveStorageEvent, true);
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storage event listener
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key, oldValue, newValue, url, storageArea (sessionStorage or localStorage)
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storage event handler object
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Create a web application that can be run offline from network.
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Offline Web Applications (AppCache)
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add manifest="application.manifest" attribute to the <HTML> tag
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Enable Application Caching
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window.applicationCache
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Application Cache object
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CACHE MANIFEST
CACHE (files to cache) NETWORK (not cached) FALLBACK (substitute offline files with online when not online) SETTINGS (controls, fast, prefer-online) |
Application Manifest File
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navigator.onLine(bool)
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Application Online Object Property
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window.addEventListener('online', onlineStatusHandler, true);
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Online Application Event Handler
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window.addEventListener('offline', offlineStatusHandler, true);
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Offline Application Event Handler
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0-UNCACHED
1-IDLE 2-CHECKING 3-DOWNLOADING 4-UPDATEREADY 5-OBSOLETE |
Status Handler Status
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oncached
onchecking ondownloading onupdateready onobsolete onerror onnoupdate onprogress |
Status Handler Status Events
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window.applicationCache.update();
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Update Application Cache
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text/cache-manifest
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Cache manifest MIME type
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trigger browser to reload application
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Changes to the manifest file
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