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String formatting in Python 3
...format(goals=2, penalties=4)
"({goals} goals, ${penalties})".format(**self.__dict__)
"first goal: {0.goal_list[0]}".format(self)
"second goal: {.goal_list[1]}".format(self)
"conversion rate: {:.2f}".format(self.goals / self.shots) # '0.20'
"conversion rate: {:.2%}".format(self.goals / self.shots) ...
Selecting multiple columns in a pandas dataframe
...ou can just return a view of only those columns by passing a list into the __getitem__ syntax (the []'s).
df1 = df[['a', 'b']]
Alternatively, if it matters to index them numerically and not by their name (say your code should automatically do this without knowing the names of the first two columns)...
How to list the contents of a package using YUM?
... Why install a new package when you can use rpm -ql $PACKAGE_NAME?
– isapir
Apr 8 '19 at 17:42
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show 1 more comment
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How to deal with floating point number precision in JavaScript?
...nswered Sep 4 '10 at 23:00
linux_mikelinux_mike
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Weak and strong property setter attributes in Objective-C
...n release autorelease etc... Instead you use strong weak for properties or __strong
__weak
for variables (defaults to __strong). Strong is the equivalent to retain, however ARC will manage the release for you.
The only time you would want to use weak, is if you wanted to avoid retain cycles (e.g...
How to configure XAMPP to send mail from localhost?
...upport.google.com/accounts/answer/6010255 to allow access from less secure apps.
To send email on Linux (with sendmail package) through Gmail from
localhost please check PHP+Ubuntu Send email using gmail form
localhost.
...
How do I loop through or enumerate a JavaScript object?
...ach object in javascript (actually a key-value pair) has a property called __proto__ or prototype. This property has a reference to its parent object. An object automatically inherits property from its parent. This is the reason of using hasOwnProperty, which signifies that we're interested in objec...
How to JSON serialize sets?
I have a Python set that contains objects with __hash__ and __eq__ methods in order to make certain no duplicates are included in the collection.
...
What's “requestCode” used for on PendingIntent?
... screen, I dont know whether is this the correct way and for me error was happening only when multiple FCMs were there in tray
– JSONParser
Dec 15 '18 at 9:06
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What is the difference between C# and .NET?
...ment 0x00000200
.stackreserve 0x00100000
.subsystem 0x0003 // WINDOWS_CUI
.corflags 0x00000001 // ILONLY
// Image base: 0x05DB0000
// =============== CLASS MEMBERS DECLARATION ===================
.class public auto ansi beforefieldinit Example.Class1
extends [mscorlib]System.Objec...