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Lazy loading csv with pandas


Lazy loading csv with pandas

By : user2956541
Date : November 22 2020, 10:56 AM
Hope that helps For a small number of lines try using linecache and manually creating a pandas DataFrame.
For example, the following code puts lines 12, 24, and 36 (1-indexed) into a DataFrame.
code :
import linecache
from pandas import DataFrame

filename = "large.csv"
indices = [12,24,36]

li = []
for i in indices:
    li.append(linecache.getline(filename, i).rstrip().split(','))

dataframe = DataFrame(li)


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Lazy loading the addthis script? (or lazy loading external js content dependent on already fired events)

Lazy loading the addthis script? (or lazy loading external js content dependent on already fired events)


By : user1112825
Date : March 29 2020, 07:55 AM
I wish this helpful for you This code solves the problem and saves the loading time that I was looking for.
After reading this post about how most current js libraries implement tests for a dom loaded event. I spent some time with the obfuscated code, and I was able to determine that addthis uses a combination of the mentioned doscroll method, timers, and the DOMContentLoaded event for various browsers. Since only those browsers dependent on the DOMContentloaded event would need the following code anyway:
code :
if( document.createEvent ) {
 var evt = document.createEvent("MutationEvents"); 
 evt.initMutationEvent("DOMContentLoaded", true, true, document, "", "", "", 0); 
 document.dispatchEvent(evt);
}
Implicit Lazy Loading vs Explicit Lazy Loading

Implicit Lazy Loading vs Explicit Lazy Loading


By : slvr
Date : March 29 2020, 07:55 AM
I hope this helps . If you e.g. have an entity "OrderRow" and another entity "Order", there will be a navigational property on the OrderRow that points to the Order it belongs to.
Currently Entity Framework supports only Explicit Lazy Load which means that if you have retreived a number of OrderRows and want to check something on the Order you need to:
code :
// or is an OrderRow
if(!or.Order.IsLoaded)
    or.Order.Load()

or.Order.Cancel();
Coming from SQL to EF6 Which loading method should I start with? Lazy Loading, Explicit loading, Eager loading

Coming from SQL to EF6 Which loading method should I start with? Lazy Loading, Explicit loading, Eager loading


By : Chachrist
Date : March 29 2020, 07:55 AM
it should still fix some issue My experience: I started with lazy loading as a beginner, then started to use Include when perf became unacceptable. Now I almost always write queries manually because I outgrew Include as well. The more performance matters to you the less convenience you can have. The more complex and demanding a code-base become the more you're forced to take control.
Often, lazy loading is fine one moment and the next moment you need to do manual querying and rip out all lazy loading stuff. The transition is often sudden and radical. Example: you render a list of questions on a page. Now, you also want to show question.Answers.Count() for each question. Lazy loading cannot do that. Now you need to introduce a custom view model and a custom query (questions.Select(q => new { q.ID, q.Title, AnswerCount = q.Answers.Count() })). This always happens sooner or later, triggered by increasing business requirements. I usually go directly with the manual query.
Spring lazy loading - loading one bean loads all @Lazy beans of that class

Spring lazy loading - loading one bean loads all @Lazy beans of that class


By : Charles Chen
Date : March 29 2020, 07:55 AM
may help you . When using @Autowired directly, the injection method is byType. In other words, the container sees
code :
 @Autowired
 private HelloWorld helloworld2;
 @Bean(name="helloworld1")
Lazy Loading: How to create a lazy loading html page using jquery

Lazy Loading: How to create a lazy loading html page using jquery


By : Hildi Rowland
Date : March 29 2020, 07:55 AM
I wish this helpful for you I wanted to have a page that load the content only when it reached that section by scrolling, just like what pinterest website was doing.
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