Defer | 异步流程控制 遵循Promise/A规范

Please try out

Unfortunately doing this directly by attempting to web scrape the search results using UrlFetchApp will not work. You can use third party tools to get the number of search results, however.

I tested this out using an exponential backoff method which sometimes is able to get past 429 errors when a fetch request is invoked by UrlFetchApp.

When using UrlFetchApp to either web scrape or to connect to an API, it can happen that the server denies the request on the grounds of too many requests - or HTTP Error 429.

Google Apps Script runs in the cloud, from a set of IP addresses in a pool that Google own. You can actually see all the IP ranges here. Most websites (especially large companies such as Google) have architecture in place to prevent the use of bots scraping their websites and slowing down traffic.

Sometimes it's possible to get past this error, using a mixture of exponential backoff and random time intervals as shown for the Binance API (Full Disclosure: this GitHub repository was written by me.)

I assume that either Google directly blocks the Apps Script IP pool, or there are simply too many people trying the same thing - because with the same techniques I was unable to get any response that didn't involve entering a captcha as we discussed in the comments above and can be seen in the log of the page string.

There are many third party APIs that you can use to do this, and I suggest searching for one that meets your needs.

I tested out one called Authoritas which returns search engine indexing for different keywords. The API is asynchornous, so can take up to a minute to get a response, so a Web App solution needs to be made.

The flow I used is as follows:

• Obtain API key from Authoritas (free)
• Create a new Apps Script project to make an API call:

You will not find this information in the documentation, because it is not a single feature per se, it is simply the compiler/optimizer working its way through the query in various phases, using a number of different techniques to get the best execution plan. Sometimes it can safely push through predicates, sometimes it can't.

Note that "expanding the view" is the wrong term here. The view is always expanded into its definition (NOEXPAND excepted). What you are referring to is called predicate pushdown.

I've assumed here that indexed views and NOEXPAND are not being used.

When you execute a query, the compiler starts by parsing and lexing the query into a basic execution plan. This is a very rough, unoptimized version which pretty much mirrors the query as written.

When there is a view in the query, the compiler will retrieve the view's pre-parsed execution tree and shoves it into the execution plan, again it is a very rough draft.

With derived tables, CTEs, correlated and non-correlated subqueries, as well as inline TVFs, the same thing happens, except that parsing is needed also.

After this point, you can assume that a view may as well have been written as a CTE, it makes no difference.

The compiler has a number of tricks up its sleeve, and predicate pushdown is one of them, as is simplifying views.

The ability of the compiler here is mainly dependent on whether it can deduce that a simplification is permitted, not that it is possible.

For example, this query

You should check for errors when doing statement.Exec() as well as that would've pointed you to the actual error.

The problem lies where you do CURRRENT_TIMESTAMP instead of CURRENT_TIMESTAMP (note number of Rs in CURRENT) and not using the DEFAULT keyword for ReviewID.

The syntax for creating a table is documented here: https://www.sqlite.org/lang_createtable.html

In your code you are adding new results to the right. After some searches the new results leave the view port and you can't see them. You can remove display: flex; in .meanings to change this behavior:

T.head has type Text -> Char, so the result of map T.head (T.splitOn " " xs) is a value of type [Char]. T.concat has type [Text] -> Text, so they are not compatible. Use T.pack instead which has the correct type [Char] -> Text (or String -> Text which is the same thing).

When having issues like this you should start by checking two things:

First whether the css file that is being loaded actually includes your rules, because your browser may have a cached version stored and simply avoids loading it again.

If that is ok, then you should check whether or not your rules are being overwritten by any other rule included, that may be more specific or flagged as!important

The web inspector can help in both cases!

This is question is answered in this PR: https://github.com/apple/swift-evolution/pull/1387

I think this is those lines that really explains it 💡

In Swift's formal memory access model, methods on a value types are considered to access the entire value, and so calling the wrappedValue getter formally reads the entire stored wrapper, while calling the setter of wrappedValue formally modifies the entire stored wrapper.

The wrapper's value will be loaded before the call to wrappedValue.getter and written back after the call to wrappedValue.setter. Therefore, synchronization within the wrapper cannot provide atomic access to its own value.

The example given in the quoted text is a buffer being filled after one event and emptied after another event.

Consider this non-event driven pseudo-code for the same example.