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How does the HyperLogLog algorithm work?

...ently, and one that I came across which appears to be very interesting is called the HyperLogLog algorithm - which estimates how many unique items are in a list. ...
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How to send emails from my Android application?

... ex) { Toast.makeText(MyActivity.this, "There are no email clients installed.", Toast.LENGTH_SHORT).show(); } Otherwise you'll have to write your own client. share | improve this answer ...
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React JSX: selecting “selected” on selected option

...ect> For more info, see the React select tag doc. Also, React automatically understands booleans for this purpose, so you can simply write (note: not recommended) <option value={option.value} selected={optionsState == option.value}>{option.label}</option> and it will output 'selecte...
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Getting a list of values from a list of dicts

... simple at first glance, because find returns match objects, which include all kinds of things besides just the matched value, such as a path directly to each item. But for more complex expressions, being able to specify a path like '*.[*].value' instead of a comprehension clause for each * can make...
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How to build jars from IntelliJ properly?

.... The above sets the "skeleton" to where the jar will be saved to. To actually build and save it do the following: Extract to the target Jar OK Build | Build Artifact | Build Try Extracting the .jar file from ProjectName | out | artifacts | ProjectName_jar | ProjectName.jar ...
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Do I use , , or for SVG files?

...svgprimer.html#SVG_in_HTML If you use <object> then you get raster fallback for free*: <object data="your.svg" type="image/svg+xml"> <img src="yourfallback.jpg" /> </object> *) Well, not quite for free, because some browsers download both resources, see Larry's suggesti...
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How can I export the schema of a database in PostgreSQL?

... only the schema to stdout as .sql. For windows, you'll probably want to call pg_dump.exe. I don't have access to a Windows machine but I'm pretty sure from memory that's the command. See if the help works for you too. shar...
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The server principal is not able to access the database under the current security context in SQL Se

...u would after restoring a db). A stock (cursor driven) script to re-sync all accounts is attached: USE <your database> GO -------- Reset SQL user account guids --------------------- DECLARE @UserName nvarchar(255) DECLARE orphanuser_cur cursor for SELECT UserName = su.name F...
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Check if a row exists, otherwise insert

...cedure that updates a row in a table. If the row doesn't exist, insert it. All this steps wrapped by a transaction. 11 Ans...
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Renew Provisioning Profile

...appears). I think because I had the phone plugged in already it automagically updated to the phone, because I didn't have to re-sync or anything. Now my App works again! share | improve this answ...