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How to add an empty column to a dataframe?
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This answer just created new rows for me.
– logicbloke
May 16 '19 at 15:26
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What are the Android SDK build-tools, platform-tools and tools? And which version should be used?
... set tools for a version will work. Build tools are updated as an when the new version of Android comes in. You would want to compile and test the application for the latest Android versions.
– mipreamble
Apr 19 '15 at 2:01
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Stop Mongoose from creating _id property for sub-document array items
... what I tried yesterday was change this: let studentSchema = new Schema({ studentId: { type: ObjectId, ref: Student.modelName }, performance: [performanceSchema] }, { _id: false }); to this: let studentSchema = new Schema({ _id: false, id: false, studentId: { type: ObjectId, ref: Stude...
jQuery AJAX cross domain
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It's 2016. CORS is now a widely supported standard, as opposed to JSONP which can only be described as a hack. @joshuarh's answer below should be the preferred one now.
– Vicky Chijwani
Jul 20 '16 at 9:16
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Unrecognized SSL message, plaintext connection? Exception
...local SMTP domain name that will contact the mail server and establishes a new connection as well you should change the SSL property in your programming below
javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection
props.put("mail.smtp.socketFactory.fallback", "true"); // Shou...
Why functional languages? [closed]
... don't thing programming has evolved much. Well have better tools, maybe a new language or 2 but fundamentally not much will change. This will take more than 20 years. We all once thought we would see flying cars in 2000. :)
– bibac
Jan 4 '09 at 21:53
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What is HEAD in Git?
...es with git checkout, the HEAD revision changes to point to the tip of the new branch.
You can see what HEAD points to by doing:
cat .git/HEAD
In my case, the output is:
$ cat .git/HEAD
ref: refs/heads/master
It is possible for HEAD to refer to a specific revision that is not associated with ...
How to go from Blob to ArrayBuffer
...irst.
/* Use the await keyword to wait for the Promise to resolve */
await new Response(blob).arrayBuffer(); //=> <ArrayBuffer>
alternatively you could use this:
new Response(blob).arrayBuffer()
.then(/* <function> */);
Note: This API isn't compatible with older (ancient) ...
Get MD5 hash of big files in Python
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the b'' syntax was new to me. Explained here.
– cod3monk3y
Feb 18 '14 at 5:19
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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
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@PeterCordes oh, I knew about merging uops at least for partial flag stalls. Makes sense, but I forgot how it works for a minute; it clicked once but I forgot to make notes
– Lewis Kelsey
Mar 31 at 20:03
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