Lambda equivalent from Python in PHP -


मैं इस कोड को PHP में दोहराने की कोशिश कर रहा हूं: 

  pool = ThreadPool (num_parts) Pool.map (lambda f: migrate (client, user_id = user_id, files = f), all_files)

पीएचपी में उपयोग करने के लिए समतुल्य संरचना क्या है जो कॉल करने के दौरान एक सरणी पर पुनरावृति करता है समारोह? PHP पर बहु-थ्रेडिंग के संदर्भ में इसे उपयोग करने के लिए डबल बोनस अंक:)

पायथन में, 

  डीफ़ एफ (x): वापसी x * 2

या: 

  f = lambda x: x * 2

दोनों एक फ़ंक्शन बनाते हैं f देता है x बार 2, लैम्ब्डा को छोड़कर एक गुमनाम कार्य बना सकता है, जिसे किसी चर के लिए असाइन किया जा सकता है या कोई नाम दिए बिना तर्क के रूप में पारित किया जा सकता है।

ऐसा ही प्रभाव PHP की तरह इस तरह पूरा किया जा सकता है: 

  $ f = कार्य ($ x) {return $ x * 2; }

अब वेरिएबल $ f फ़ंक्शन को रखता है और इसे $ f (value) के रूप में इस्तेमाल किया जा सकता है।

उसी तरह से अजगर के रूप में, आप इस गुमनाम कार्य को एक चर के रूप में प्रत्यक्ष रूप से एक चर के रूप में निर्दिष्ट किए बिना या इसे एक नाम दे सकते हैं। उदाहरण: 

  $ arr = [1, 2, 3, 4, 5]; $ Arr = array_map (फ़ंक्शन ($ x) {वापसी $ x * 2;}, $ arr); // $ arr अब [2, 4, 6, 8, 10]

-

Comments

Post a Comment

Popular posts from this blog

sqlite3 - UPDATE a table from the SELECT of another one -

I have the first table article where some data is missing. In the table, articles_tmp I have a part of the missing data. So I want to update the articles. Where the path path is data in articles_tmp.path where the path is not zero . With SQLite , it does not work: update article SET path = (SELECT at.path FROM Articles_tmp as AS, WHERE at.article_id = a.id and a.asp, the text is in the form and not on. It has been transmitted) where the path is null MS Access Along with, it works fine: Update Articles Join the Inner Articles at articles_tmp articles.id = articles_tmp.id SETP articles.path = articles_tmp.path Can anyone help? Sin CE SQL Server Syntax, which I provided, was not working, here this solution With whom I have come. A little modification of your original query, but with my "correlation" suggestion added. There is a SQL Bella for this: Here is the code: update article SET path = (SELECT path from articles_tmp AS T WHERE t.id
Read more

c# - Showing a SelectedItem's Property -

So I have enabled a rightclick option for my DataGrid. I want to display the only chosen property but it is not behaving like what I would like it to display my name and additional. Public category Paymentinfo {public int PaymentNo {get; Set; } Public string date {get; Set; } Public Double Pay {get; Set; } Public Double Principle {get; Set; } Public Double Interest {get; Set; } Public Double Balance {Received; Set; }} Private Zero MenuItem_OnClick (Object Sender, RoutedEventArgs e) {MessageBox.Show (AmortGrid.SelectedItem.ToString ()); } I'm trying to apply it without using a View Module! If I place a breakpoint where the messagebox and the recipient place it on selected ITEM, then this property will display the payment. A date-payment-principle-interest-balance is the only value that needs payment. Was hoping that it would be something like this MessageBox.Show (AmortGrid.SelectedItem.PaymentNo.ToString ()); When you call ToString () So you get the class typ
Read more

javascript - Render HTML after each iteration in loop -

I'm trying to gradually increase the font size of text on a web page. The code works in my place, although the new HTML / CSS does not render after every iteration of the loop and when all this is done, then display only the text of 100 px size. To see the text as if it is slowly zooming, I need to do this JavaScript is down because it is being used from a different file here is what I have ... < Pre> & lt; P class = "game-title" style = "font-size: 50px" & gt; Test & lt; / P & gt; Function sleep (milliseconds) {var start = new date (). GetTime (); For (var i = 0; i & lt; 1e7; i ++) {if ((new date). GetTime () - start) & gt; Milliseconds {break; CSS ('font-size', 'parseInt ($ (' game-title '). CSS (' font-size ')) + 1 + "pixels"); } While (parasont ($ ('# text'). Css ('font-size')) & lt; = 100) {sleep (1000); IncreaseSize (); Using CSS: Use of jQuery (sample):
Read more