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Home Page: https://wtfpowershell.aiurs.co/
License: The Unlicense
What the f*** with PowerShell
Home Page: https://wtfpowershell.aiurs.co/
License: The Unlicense
PowerShell reads file line by line, which works like .NET 's File.ReadAllLine()
. which means, the $myLetter
is a string array.
And $myLetter.Contains("Hi");
only searches in the first child of the array.
This is obvious. ` escape any character in pwsh. Without the space, pwsh will escape the LF, and will seize
$aAndB = $a `
-and $b
as one expression.
But with the space, ` will escape the space instead of the LF. and will seize the codes as two expressions.
$aAndB = $a
will set $aAndB
to true
-and $b
is invalid and will be ignored.
In powershell, theory and practice are combined: Nothing works and nobody knows why.
> 'aaa','bbb','aba' -like 'a*'
aaa
aba
So it's the same as 'aaa','bbb','aba'|?{$_ -like 'a*'}
.
The second one.
> $myObj | ConvertTo-Json
WARNING: Resulting JSON is truncated as serialization has exceeded the set depth of 2.
pwsh 7.1.0.
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.