Remove duplicates conditionally from array in Ruby -


इस सवाल का पहले से ही एक उत्तर है: < 6 जवाब

तो मेरे पास यह सरणी है: / p> 

  •   ['वन', 'दो', 'वन', 'वन', 'थ्री', 'थ्री', 'वन']

    मुझे यह परिणाम प्राप्त करना है: 

      ['वन', 'दो', 'वन', 'तीन', 'वन']

    मैं उन आइटम को हटाना चाहता हूं जो कि पिछले आइटम के समान है रूबी में ऐसा कैसे करें

उपयोग करें 

  ary = [ 'वन', 'दो', 'वन', 'वन', 'थ्री', 'थ्री', 'वन'] ary.chunk {| x | X} .मॅप (और: पहले) # = & gt; ["वन", "टू", "वन", "थ्री", "वन"]

संख्यात्मक # चक वस्तुओं पर बराबरी करता है, वापसी के आधार पर उन्हें एक साथ चिनिंग करता है ब्लॉक का मूल्य लगातार तत्व जो एक ही ब्लॉक मान वापस लौटाते हैं उन्हें एक साथ गिना जाता है। 

  ary.chunk {| x | X} .to_a = & gt; ["एक", "एक"], ["दो", ["दो"]], ["एक", "एक", "वन"], ["तीन", ["तीन" , "तीन"]], ["एक", ["एक"]]

मानचित्र (& amp;; पहला) सरणी के प्रत्येक तत्व पर प्रथम विधि

और: पहले को proc to symbol कहा जाता है जो एक proc वस्तु बनाता है कि नक्शा

के लिए प्रत्येक तत्व का उत्पादन करती है, इसलिए ऊपर दिए गए उदाहरण को नीचे के रूप में फिर से लिखा जा सकता है: 

  lambda_obj = - & gt; (ele) {ele.first} ary .chunk {| x | X} .map (और लैम्ब्डा_ओबीजे) # = & gt; ["एक", "दो", "वन", "तीन", "वन"]

Comments

Post a Comment

Popular posts from this blog

c# - Reactive Extensions ControlScheduler -

Well, I'm using Reactive Extension Event Handler to handle my app events, I run the headlines on the Yuri thread. I also use ControlSubular for However, recently I am getting cross thread exception despite using control scheduler and I do not know what the problem is. Code: Observable.FromEventPattern & Lt; String & gt; (CC, "UiAlertMessage", New Control Session ()) Subscribe (_ = & gt; {Alert Control. (Show this language, title, _.EventArgs.UppercaseFirst ());}); The new control scheduler (this) is not to run the code on the UI control thread, so I do not get cross threading exceptions? you should do Observable.FromEventPattern & lt; String & gt; (CC, "UiAlertMessage"). AboveOption (this). Subscribe (_ = & gt; {Alert Control. (Show this language, Titles, _.EventArgs.UppercaseFirst ());}); This is the standard way of sending a scheduler related to specific controls. Passing control scheduler as you have got subsc...
Read more

scala - Play Framework - how to bind form to a session field -

Is there any way, I can get some parameters from the header, cookies (log in userId in my case) , And then apply it in a form which I know who will deposit the ticket? SupportForm supportForm: form [supportTicket] = form (mapping ("question" -> text, "priority" -> text) (apply support ticket. (HelpText.update) What are the good practices here? What is the call to apply the request, when I can use it (and also a good practice?) Edit An issue, absolutely deceiving anyone if I were to create a hidden area with this value. It could Ript, but the issue may be re-used in any way to verify and return the form, it can not be sure how it ....
Read more

javascript - Enable/Disable form elements and changing the values of button at a time? -

requirement: text is a button with "disabled" when the page opens, then I want to disable it when the user clicks on button , I want to enable my form field and at the same time I want to change the value of my button to "enabled." I have an example of how the button's value, but how can I enable / disable it at the same time? & lt; H: form & gt; Please press this button & lt; H: command button id = "cb1" value = "# {ActionBean.buttonText}" instant = "true" functionalist = "# {ActionBean.processMyAction}" /> & Lt; / H: form & gt; My Bean class looks like this: / * action listener method * / public zeroes process my action (verb phenomenon) {disable =! Disable; System.out.println ("disable:" + disabled); If (buttonText.equals ("disable")) {buttonText = "enable"; System.out.println ("Button Type:" + Button); } Else {buttonText = "disable...
Read more