1625640757
Compare documentation, learning curves, and use cases for the Pinia and Vuex state management libraries for your next Vue.js project.
Pinia, a lightweight state management library for Vue.js, has gained recent popularity. It uses the new reactivity system in Vue 3 to build an intuitive and fully typed state management library.
Pinia’s success can be attributed to its unique features (extensibility, store module organization, grouping of state changes, multiple stores creation, and so on) for managing stored data.
On the other hand, Vuex is also a popular state management library built for the Vue framework, and it is the recommended library for state management by the Vue core team. Vuex is highly focused on application scalability, developer ergonomics, and confidence. It is based on the same flux architecture as Redux.
In this article, we will make a comparison between Pinia and Vuex. We will analyze the setup, community strengths, and performance of both frameworks. We’ll also look at new changes in Vuex 5 compared to Pinia 2.
The code snippets used in this article are based on the Vue 3 Composition API.
#pinia #vuex #vue #vuejs
1625640757
Compare documentation, learning curves, and use cases for the Pinia and Vuex state management libraries for your next Vue.js project.
Pinia, a lightweight state management library for Vue.js, has gained recent popularity. It uses the new reactivity system in Vue 3 to build an intuitive and fully typed state management library.
Pinia’s success can be attributed to its unique features (extensibility, store module organization, grouping of state changes, multiple stores creation, and so on) for managing stored data.
On the other hand, Vuex is also a popular state management library built for the Vue framework, and it is the recommended library for state management by the Vue core team. Vuex is highly focused on application scalability, developer ergonomics, and confidence. It is based on the same flux architecture as Redux.
In this article, we will make a comparison between Pinia and Vuex. We will analyze the setup, community strengths, and performance of both frameworks. We’ll also look at new changes in Vuex 5 compared to Pinia 2.
The code snippets used in this article are based on the Vue 3 Composition API.
#pinia #vuex #vue #vuejs
1598839687
If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?
In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.
Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.
React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.
Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.
Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.
The popularity of React Native comes from its advantages. Some of its advantages are as follows:
Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.
React Native is very close to native. Consider the following aspects as described on the React Native website:
Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.
#android app #frontend #ios app #mobile app development #benefits of react native #is react native good for mobile app development #native vs #pros and cons of react native #react mobile development #react native development #react native experience #react native framework #react native ios vs android #react native pros and cons #react native vs android #react native vs native #react native vs native performance #react vs native #why react native #why use react native
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Every year, the world is expanding with the launch of new smartphones and other gadgets available in the market. According to Statista, more than 50% of the population will be using smartphones by the end of 2021.
Hence, businesses worldwide have understood the importance of smartphones and are joining the mobile industry by launching native apps.
Apart from native apps, progressive web apps is another technology that is gaining a lot of attention among businesses. Moreover, various leading companies worldwide have openly accepted PWA and built progressive web apps.
Now, the question arises, how is PWA different from the native apps? Read More
#pwa vs native #pwa vs native app #progressive web app vs native #progressive web app vs native app #pwa vs native app performance
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In this article, we will learn how to replace elements in Python NumPy Array. To replace elements in Python NumPy Array, We can follow the following examples.
The following code shows how to replace all elements in the NumPy array equal to 8 with a new value of 20:
#replace all elements equal to 8 with 20
my_array[my_array == 8] = 20
#view updated array
print(my_array)
[ 4 5 5 7 20 20 9 12]
The following code shows how to replace all elements in the NumPy array greater than 8 with a new value of 20:
#replace all elements greater than 8 with 20
my_array[my_array > 8] = 20
#view updated array
print(my_array)
[ 4 5 5 7 8 8 20 20]
The following code shows how to replace all elements in the NumPy array greater than 8 or less than 6 with a new value of 20:
#replace all elements greater than 8 or less than 6 with a new value of 20
my_array[(my_array > 8) | (my_array < 6)] = 20
#view updated array
print(my_array)
[20 20 20 7 8 8 20 20]
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In this article you'll see how to use Python's .replace()
method to perform substring substiution.
You'll also see how to perform case-insensitive substring substitution.
Let's get started!
.replace()
Python method do?When using the .replace()
Python method, you are able to replace every instance of one specific character with a new one. You can even replace a whole string of text with a new line of text that you specify.
The .replace()
method returns a copy of a string. This means that the old substring remains the same, but a new copy gets created – with all of the old text having been replaced by the new text.
.replace()
Python method work? A Syntax BreakdownThe syntax for the .replace()
method looks like this:
string.replace(old_text, new_text, count)
Let's break it down:
old_text
is the first required parameter that .replace()
accepts. It's the old character or text that you want to replace. Enclose this in quotation marks.new_text
is the second required parameter that .replace()
accepts. It's the new character or text which you want to replace the old character/text with. This parameter also needs to be enclosed in quotation marks.count
is the optional third parameter that .replace()
accepts. By default, .replace()
will replace all instances of the substring. However, you can use count
to specify the number of occurrences you want to be replaced..replace()
Method Code ExamplesTo change all instances of a single character, you would do the following:
phrase = "I like to learn coding on the go"
# replace all instances of 'o' with 'a'
substituted_phrase = phrase.replace("o", "a" )
print(phrase)
print(substituted_phrase)
#output
#I like to learn coding on the go
#I like ta learn cading an the ga
In the example above, each word that contained the character o
is replaced with the character a
.
In that example there were four instances of the character o
. Specifically, it was found in the words to
, coding
, on
, and go
.
What if you only wanted to change two words, like to
and coding
, to contain a
instead of o
?
To change only two instances of a single character, you would use the count
parameter and set it to two:
phrase = "I like to learn coding on the go"
# replace only the first two instances of 'o' with 'a'
substituted_phrase = phrase.replace("o", "a", 2 )
print(phrase)
print(substituted_phrase)
#output
#I like to learn coding on the go
#I like ta learn cading on the go
If you only wanted to change the first instance of a single character, you would set the count
parameter to one:
phrase = "I like to learn coding on the go"
# replace only the first instance of 'o' with 'a'
substituted_phrase = phrase.replace("o", "a", 1 )
print(phrase)
print(substituted_phrase)
#output
#I like to learn coding on the go
#I like ta learn coding on the go
To change more than one character, the process looks similar.
phrase = "The sun is strong today. I don't really like sun."
#replace all instances of the word 'sun' with 'wind'
substituted_phrase = phrase.replace("sun", "wind")
print(phrase)
print(substituted_phrase)
#output
#The sun is strong today. I don't really like sun.
#The wind is strong today. I don't really like wind.
In the example above, the word sun
was replaced with the word wind
.
If you wanted to change only the first instance of sun
to wind
, you would use the count
parameter and set it to one.
phrase = "The sun is strong today. I don't really like sun."
#replace only the first instance of the word 'sun' with 'wind'
substituted_phrase = phrase.replace("sun", "wind", 1)
print(phrase)
print(substituted_phrase)
#output
#The sun is strong today. I don't really like sun.
#The wind is strong today. I don't really like sun.
Let's take a look at another example.
phrase = "I am learning Ruby. I really enjoy the ruby programming language!"
#replace the text "Ruby" with "Python"
substituted_text = phrase.replace("Ruby", "Python")
print(substituted_text)
#output
#I am learning Python. I really enjoy the ruby programming language!
In this case, what I really wanted to do was to replace all instances of the word Ruby
with Python
.
However, there was the word ruby
with a lowercase r
, which I would also like to change.
Because the first letter was in lowercase, and not uppercase as I specified with Ruby
, it remained the same and didn't change to Python
.
The .replace()
method is case-sensitive, and therefore it performs a case-sensitive substring substitution.
In order to perform a case-insensitive substring substitution you would have to do something different.
You would need to use the re.sub()
function and use the re.IGNORECASE
flag.
To use re.sub()
you need to:
re
module, via import re
.pattern
.replace
the pattern.string
you want to perform this operation on.count
parameter to make the replacement more precise and specify the maximum number of replacements you want to take place.re.IGNORECASE
flag tells the regular expression to perform a case-insensitive match.So, all together the syntax looks like this:
import re
re.sub(pattern, replace, string, count, flags)
Taking the example from earlier:
phrase = "I am learning Ruby. I really enjoy the ruby programming language!"
This is how I would replace both Ruby
and ruby
with Python
:
import re
phrase = "I am learning Ruby. I really enjoy the ruby programming language!"
phrase = re.sub("Ruby","Python", phrase, flags=re.IGNORECASE)
print(phrase)
#output
#I am learning Python. I really enjoy the Python programming language!
And there you have it - you now know the basics of substring substitution. Hopefully you found this guide helpful.
To learn more about Python, check out freeCodeCamp's Scientific Computing with Python Certification.
You'll start from the basics and learn in an interacitve and beginner-friendly way. You'll also build five projects at the end to put into practice and help reinforce what you learned.
Thanks for reading and happy coding!