record

问题 I am looking for a concise way of updating a nested value inside a record in Elm (0.18). Given the following example: person = { name = "Steven", address = { country = "Spain", city = "Barcelona" } } I can update person.name to "Steve" using the following expression: { person | name = "Steve" } However, I am looking for a way to update a nested value. For instance, I would like to update person.address.city to "Madrid". I tried the following: { person | address.city = "Madrid" } { person |

问题 I've been using Delphi for quite some time now, but rather than coming from a CS background I have learnt "on the job" - mostly from my Boss, and augmented by bits and pieces picked up from the web, users guides, examples, etc. Now my boss is old school, started programming using Pascal, and hasn't necessarily kept up-to-date with the latest changes to Delphi. Just recently I've been wondering whether one of our core techniques is "wrong". Most of our applications interface with MySQL. In

问题 In a basic Postgres function tutorial there is an example with OUT parameters like so: create or replace function hi_lo(a numeric, b numeric, c numeric, OUT hi numeric, OUT lo numeric) as $$ begin hi := greatest(a, b, c); lo := least(a, b, c); end; $$ language plpgsql; Then results look like select hi_lo(2, 3, 4); -- returns one column, "hi_lo" with value "(4, 2)". select * from hi_lo(2, 3, 4); -- returns two columns, "hi" / 4 and "lo" / 2. But suppose you want to execute the function on

问题 I have set up a TCP connection between two iPhones and I am able to send NSData packages between the two. I would like to talk into the microphone and get the recording as an NSData object and send this to the other iPhone. I have successfulyl used Audio Queue Services to record audio and play it but I have not managed to get the recording as NSData. I posted a question about converting the recording to NSData when using Audio Queue Services but it has not got me any further. Therefore I

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed last year . I want to create an application that will enable the users to Capture Screen of their Android device. like any screen recorder software we used in pc please help me out Edit : 1 here Screen capture refers to Screen recording of device screen as video not snapshots of screen. 回答1:

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed last year . I want to create an application that will enable the users to Capture Screen of their Android device. like any screen recorder software we used in pc please help me out Edit : 1 here Screen capture refers to Screen recording of device screen as video not snapshots of screen. 回答1:

问题 I'm building a spreadsheet app using MySQL as storage, I need to identify records that are being updated client-side in order to save the changes. Is there a way, such as some kind of "internal record identifier" (internal as in used by the database engine itself), to uniquely identify records, so that I'll be able to update the correct one? Certainly, a SELECT query can be used to identify the record, including all the fields in the table, but obviously that has the downside of returning

问题 I would like to declare a record in Delphi that contains the same layout as it has in C. For those interested : This record is part of a union in the Windows OS's LDT_ENTRY record. (I need to use this record in Delphi because I'm working on an Xbox emulator in Delphi - see project Dxbx on sourceforge). Anyway, the record in question is defined as: struct { DWORD BaseMid : 8; DWORD Type : 5; DWORD Dpl : 2; DWORD Pres : 1; DWORD LimitHi : 4; DWORD Sys : 1; DWORD Reserved_0 : 1; DWORD Default

问题 This question already has answers here : Shorthand way for assigning a single field in a record, while copying the rest of the fields? (3 answers) Is there a Haskell idiom for updating a nested data structure? (3 answers) Closed 8 months ago . It's the second time I'm tackling this problem... And for the second time this is while working with the State monad, apparently a state likes to consist of many fields, not just one I have a tuple: type CurrentState = (Int, Int, String, [Int],

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . I want to record a demo of my app on the device. For the purpose of recording an in-app demo, is there a framework which can be dropped into an app to record the screen? Of course this framework would be removed prior to submission to the App Store. 回答1: if your device is jailbroken, try this: I dont know about