本文整理汇总了TypeScript中@jupyterlab/coreutils.StateDB.toJSON方法的典型用法代码示例。如果您正苦于以下问题:TypeScript StateDB.toJSON方法的具体用法?TypeScript StateDB.toJSON怎么用?TypeScript StateDB.toJSON使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类@jupyterlab/coreutils.StateDB
的用法示例。
在下文中一共展示了StateDB.toJSON方法的7个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1:
debouncer = window.setTimeout(() => {
state.toJSON()
.then(data => workspaces.save(id, { data, metadata }))
.then(() => {
conflated.resolve(undefined);
conflated = null;
})
.catch(reason => {
conflated.reject(reason);
conflated = null;
});
}, timeout);
示例2: catch
debouncer = window.setTimeout(async () => {
const data = await db.toJSON();
try {
await workspaces.save(id, { data, metadata });
if (conflated) {
conflated.resolve(undefined);
}
} catch (error) {
if (conflated) {
conflated.reject(error);
}
}
conflated = null;
}, timeout);
示例3: catch
debouncer = window.setTimeout(async () => {
// Prevent a race condition between the timeout and saving.
if (!conflated) {
return;
}
const data = await state.toJSON();
try {
await workspaces.save(id, { data, metadata });
conflated.resolve(undefined);
} catch (error) {
conflated.reject(error);
}
conflated = null;
}, timeout);
示例4:
debouncer = window.setTimeout(() => {
// Prevent a race condition between the timeout and saving.
if (!conflated) {
return;
}
state.toJSON()
.then(data => workspaces.save(id, { data, metadata }))
.then(() => {
conflated.resolve(undefined);
conflated = null;
})
.catch(reason => {
conflated.reject(reason);
conflated = null;
});
}, timeout);
示例5: it
it('return the full contents of a state database', async () => {
const { localStorage } = window;
const db = new StateDB({ namespace: 'test-namespace' });
const contents: ReadonlyJSONObject = {
abc: 'def',
ghi: 'jkl',
mno: 1,
pqr: {
foo: { bar: { baz: 'qux' } }
}
};
expect(localStorage.length).to.equal(0);
await Promise.all(
Object.keys(contents).map(key => db.save(key, contents[key]))
);
const serialized = await db.toJSON();
expect(serialized).to.deep.equal(contents);
await db.clear();
});
示例6: workspace
execute: (args: IRouter.ILocation) => {
// Since the command can be executed an arbitrary number of times, make
// sure it is safe to call multiple times.
if (resolved) {
return;
}
const { hash, path, search } = args;
const workspace = Private.getWorkspace(router);
const query = URLExt.queryStringToObject(search || '');
const clone = query['clone'];
const source = typeof clone === 'string' ? clone : workspace;
let promise: Promise<any>;
// If the default /lab workspace is being cloned, copy it out of local
// storage instead of making a round trip to the server because it
// does not exist on the server.
if (source === clone && source === '') {
const prefix = `${source}:${info.namespace}:`;
const mask = (key: string) => key.replace(prefix, '');
const contents = StateDB.toJSON(prefix, mask);
resolved = true;
transform.resolve({ type: 'overwrite', contents });
promise = Promise.resolve();
}
// If there is no promise, fetch the source and overwrite the database.
promise =
promise ||
workspaces
.fetch(source)
.then(saved => {
// If this command is called after a reset, the state database
// will already be resolved.
if (!resolved) {
resolved = true;
transform.resolve({ type: 'overwrite', contents: saved.data });
}
})
.catch(reason => {
console.warn(`Fetching workspace (${workspace}) failed:`, reason);
// If the workspace does not exist, cancel the data transformation
// and save a workspace with the current user state data.
if (!resolved) {
resolved = true;
transform.resolve({ type: 'cancel', contents: null });
}
})
.then(() => {
// Any time the local state database changes, save the workspace.
if (workspace) {
state.changed.connect(listener, state);
}
});
return promise
.catch(reason => {
console.warn(`${CommandIDs.loadState} failed:`, reason);
})
.then(() => {
const immediate = true;
if (source === clone) {
// Maintain the query string parameters but remove `clone`.
delete query['clone'];
const url = path + URLExt.objectToQueryString(query) + hash;
const cloned = commands
.execute(CommandIDs.saveState, { immediate })
.then(() => router.stop);
// After the state has been cloned, navigate to the URL.
cloned.then(() => {
router.navigate(url, { silent: true });
});
return cloned;
}
// After the state database has finished loading, save it.
return commands.execute(CommandIDs.saveState, { immediate });
});
}