Javascript - array connect to another -


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

  • 1 9 उत्तर
  • 1 उत्तर

    मेरे पास वास्तव में अजीब स्थिति है:

    जब मैं यह कोड करता हूँ: 

      Var मूल_अरे = [1,2,3]; Var एम = मूल_अरे; m.pop (); चेतावनी (origin_array);   
     मूल_अरे का मान 1,2 हो जाएगा, लेकिन मैंने इसे बदल नहीं किया  
     लेकिन अगर मैं उस कोड को बनाऊँगा:  
      var X = 5; Var y = x; y--; चेतावनी (x);   
     x अभी भी 5 हो, यह "एक्स" से नहीं जोड़ा जाएगा जैसा कि आप 1 उदाहरण से देख सकते हैं।  
     तो मेरा सवाल है कि मैं कैसे कर सकता हूं "एम" सरणी अद्वितीय है, जो मूल सरणी को बदल नहीं सकता?   
     
     
     आपको स्पष्ट रूप से एक ( उथले) प्रतिलिपि या  मूल_अरे  का क्लोन:  
      var m = origin_array.slice (0);   
     आदिम मानों के लिए आवश्यक नहीं है, जैसे स्ट्रिंग्स और नंबर।  
     यह समझना जरूरी है कि उपरोक्त समस्या जो आप अनुभव कर रहे थे, उसे रोकने होंगे फिर से गहरा हो सकता है अगर आप अधिक जटिल संरचनाओं से निपटते हैं, और कुछ मामलों में "गहरा क्लोन" आवश्यक है।

Comments

Post a Comment

Popular posts from this blog

python - how we can use ajax() in views.py in django? -

I have a little code here. Could you please tell me what this code really does? please. Here in the AJAX call: $ .ajax ({url: "{% url} upload_document '%}", type: "POST", data : {Csrfmiddletoken: document.getElementsByName ('csrfmiddletoken') [0] Price, Title: document.getElementById ('title'). Value, // document: document: document.getElementById ('document'),}, datatype: "Jason", success: function (feedback) {if (feedback == "true") {// success} other {// attachment errors}}}); How AJAX works in the Django and how we can see the AJAX request. Here is the idea of ​​my thoughts def upload_document (requested): Print request. POTT print request FILES if request.is_ajax (): If request.method == 'POST': form = UploadForm (request.POST, request.FILES, user = request.user) if form.is_valid (): Form.save () return HTTPPCS (SimpleJason Dumps ('True'), Mime Type = 'App / Jason') Other:...
Read more

matlab - Using loops to get multiple values into a cell -

I have 31 topics (S1, S2, S3, S4, etc.) 3 images in each topic, opposite 1 IMG, Contrast 2 IMG and Contrast 3 Are IMG I p In a NX1 cell named P, I would like to use a loop to get all the paths of contrasts from all the subjects: data / S1 / contrast1.img / S1 / contrast2.img data / S1 / contrast3.img data / s2 / contrast1.img data / S2 / contrast2.img Data / S2 / contrast3.img ... Data / S31 / contast3.img This is what I've tried: A = {'S1', 'S2', 'S3', ..., 'S31'}; % All topics C = {'contrast1.img', 'contrast2.img', 'contrast3.img'}; For each = P = cell (31 * 3,1) for each topic, the required contrast images: Length = A for Jammu = 1: Length (C) P {j} = spm_select ('FPList', Fullfile (data_path, q {i}) sprint ('% s', cell2mat (c))); % Of each topic is to select three contrast images, it works in my script, it is probably not 100% correct, because I had to simplify this example. End of ...
Read more

python - Sequence Pattern recognition with Pybrain -

Image
I am constantly trying to use recurrent neural networks to classify a series of data. To be more specific, I have a sequence of sensor reading (which is continuous over time), I have to learn an algorithm which can detect the state related to this pattern, given the readings change. Example: Time step_1: 1.4 Time step_2: 1 Time step_3: 0.8 State = New Sequence: Time Phase 1: 0.4 Time Phase 2: 0.3 Time Phase 3: 0.1 State = Sitting I actually have 12 censors, I'm just showing a sequence of numbers for convenience. (Numbers are not real, I'm just trying to fulfill this idea)! I am trying to make my network with PyBrain RNN, however, I can not get a Data Set Container that can detect it, like information I tried to use sequential data But after some testing I came to know that this number is the next element in the sequence of numbers. Here's how I prepare my dataset: self.alldata = SequentialDataSet (ds.num_features, 1) # Now add samples to the dat...
Read more