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Difference between Python datetime vs time modules
...me
t = time.time()
time.strftime('%Y-%m-%d %H:%M %Z', time.localtime(t))
'2019-05-27 12:03 CEST'
time.strftime('%Y-%m-%d %H:%M %Z', time.gmtime(t))
'2019-05-27 10:03 GMT'
time.time() is a floating point number representing the time in seconds since the system epoch. time.time() is ideal for unamb...
Is there any way to change input type=“date” format?
...heir operating system or browser language set to en-us will be shown 01/30/2019 instead of the format they are accustomed to: 30-01-2019.
Internet Explorer 9, 10, and 11 display a text input field with the wire format.
Mobile devices
Specifically for Chrome on Android, the formatting is based on ...
How to get a subset of a javascript object's properties
... >= 0)
.reduce((obj2, key) => (obj2[key] = obj[key], obj2), {});
ES2019
ECMAScript 2017 has Object.entries and Array.prototype.includes, ECMAScript 2019 has Object.fromEntries, they can be polyfilled when needed and make the task easier:
let subset = Object.fromEntries(
Object.entries(ob...
format date with moment.js
...
moment().format(); // "2019-08-12T17:52:17-05:00" (ISO 8601, no fractional seconds)
moment().format("dddd, MMMM Do YYYY, h:mm:ss a"); // "Monday, August 12th 2019, 5:52:00 pm"
moment().format("ddd, hA"); // "Mon, 5PM"
...
How can I rename a project folder from within Visual Studio?
...
This did not work for me in VS2019. Gives warnings about project references not existing and compile errors about missing the namespaces and classes in the referenced project.
– Jeff Walker Code Ranger
May 12 at 17:5...
How to write to a file in Scala?
...
Edit 2019 (8 years later), Scala-IO being not very active, if any, Li Haoyi suggests his own library lihaoyi/os-lib, that he presents below.
June 2019, Xavier Guihot mentions in his answer the library Using, a utility for perform...
Moving multiple files in TFS Source Control
.... using a GUI) Works a treat, also has support for recent versions.
for VS2019 : https://marketplace.visualstudio.com/items?itemName=HolanJan.TFSSourceControlExplorerExtension-2019
for VS2017 : https://marketplace.visualstudio.com/items?itemName=HolanJan.TFSSourceControlExplorerExtension-18397
fo...
Can the C# interactive window interact with my code?
...
It's worth noting that the feature isn't yet supported in VS 2019 for .Net Core project.
You won't find the option, and it's a known issue as highlighted in this answer
'"Initialize interactive with Project" is missing for .Net Core Projects in Visual Studio 2019'
The workaround is t...
Cartesian product of multiple arrays in JavaScript
...uggesting the use of the newly added flatMap.
Special thanks to ECMAScript 2019 for adding flat and flatMap to the language!
Example
This is the exact example from your question:
let output = cartesian([1,2],[10,20],[100,200,300]);
Output
This is the output of that command:
[ [ 1, 10, 100 ],
[ 1,...
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要有蜕掉三层皮...