oop - Function as an argument to a function in Javascript -

-

इस सवाल का पहले से ही एक उत्तर है: < / P>

  • 1 9 उत्तर

मैं लागू करने की कोशिश कर रहा हूँ एक फ़ंक्शन जो एक तर्क के रूप में दूसरे फ़ंक्शन को लेता है, और उस फ़ंक्शन का एक नया संस्करण देता है जिसे केवल एक बार कहा जा सकता है।

परिणामी फ़ंक्शन को आने वाले कॉल का कोई प्रभाव नहीं होना चाहिए (और अनिर्धारित नहीं होना चाहिए)। / P>

उदाहरण के लिए: 

  लॉगऑन = एक बार (console.log) लॉगऑन ("foo") // - & gt; "फू" लॉगऑन ("बार") // - & gt; कोई प्रभाव नहीं  
 
 आप ओब्जेक्ट फ़ंक्शन पर फ्लैग का उपयोग कर सकते हैं, आप तर्क के रूप में गुजर रहे हैं < / P> 
 
 
 
  फ़ंक्शन एक बार (func) {रिटर्न फ़ंक्शन () {if (! Func.performed) {func.apply (यह, तर्क); Func.performed = true; }}} Var लॉगऑन = एक बार (console.log); लॉगऑन ("टेस्ट 1"); लॉगऑन ("टेस्ट 2");

Comments

Post a Comment

Popular posts from this blog

java - Can't add JTree to JPanel of a JInternalFrame -

-
Image
There are two panels in my JInternalframe. I want to add TopPanel to Jtree to nominate another. But I can not add Jaitari to the top of the panel. Please help me in this piece of code: DefaultMutableTreeNode root = new DefaultMutableTreeNode ("deck"); DefaultMutableTreeNode Item Clubs = New DefaultMutableTreeNode ("Club"); AddAllCard (itemClubs); Root.add (itemClubs); DefaultMutableTreeNode item = New DefaultMutableTreeNode ("Diamonds"); AddAllCard (itemDiamonds); Root.add (itemDiamonds); DefaultMutableTreeNode Itemspads = New DefaultMutableTreeNode ("Spades"); AddAllCard (itemSpades); Root.add (itemSpades); DefaultMutableTreeNode item increases = new DefaultMutableTreeNode ("heart"); AddAllCard (itemHearts); Root.add (itemHearts); Default Trimodel Tree Model = New DefaultTreeModel (Route); Tree = new jetty (tree modal); ScrollPane = new JScrollPane (tree); // scrollPane.setViewportView (tree); . ScrollPane.getViewport () add (tr
Read more

javascript - data.match(var) not working it seems -

-
OK, I have this small block code, which is to scanned a number on the website, but for some reason There is a hip that it is not scanning at all. var regenges = / \ & lt; Span class = "currency-robux" data-to-"item-private-value-price" & gt; ([\ D,]) \ & LT; \ / Span \ & gt; /; Var ValueCiling = Data. Match (reggae); Value-song = number (value slicing location (",", "")); Is there anything wrong with that? This is related to the if statement if (value sling and lieutenant; = price watching) { < P> A function calls to move from there, but for some reason it does not seem to run at all. So I think the Regex is wrong but I'm not sure how. (There is a variable in PriceWinking , this is a snippet from the code.) On the website, I'm trying to remove it. & lt; Span class = "robux" data-plus = "item-privatesale-price" & gt; 115 & lt; / Span & gt; Keep in mind
Read more

javascript - How can I pause a jQuery .each() loop, while waiting for user input? -

-
Before I continue to get a jQuery .each loop to wait for user input There is a problem in repeatedly repeating This is my code (I have commented on what I would like to do): & lt; Html xmlns = "http://www.w3.org/1999/xhtml" & gt; & Lt; Top & gt; & Lt; Link rel = "stylesheet" type = "text / css" href = "common_components.css" /> & Lt; Meta http-equiv = "content-type" content = "text / html; charset = UTF-8" /> & Lt; Link rel = "stylesheet" href = "slider.css" & gt; & Lt ;? Php include_once 'common_components.php'; $ Query = $ dbh- & gt; Queries ("SELECT movies_dir FROM settings"); $ Line = $ query- & gt; Obtain (PDO :: FETCH_ASSOC); Date_default_timezone_set ('UTC'); Echo "& lt; title & gt; movie scanner & lt; / title & gt;"; ? & Gt; & Lt; Script src = "jquery.min.js" & gt; &am
Read more