javascript - Finding Specified Object Index in Array -

-

मेरे पास यह कोड है: 

  var आइटम = [{मूल्य: 1, पाठ: "एक"}, {मूल्य: 2, पाठ: "दो"}, {मूल्य: 3, पाठ: "तीन"}]; Console.log (items.indexOf ({मान: 2, पाठ: "दो"}));

और मुझे यह परिणाम कंसोल में मिलता है: 

  -1

लेकिन मुझे ऑब्जेक्ट इंडेक्स प्राप्त करने की उम्मीद है , मुझे क्या करना चाहिए?

जावास्क्रिप्ट का अर्रे.इंडएक्सऑफ़ इसकी तुलना नहीं करता है वस्तुओं के गुण यह बिल्कुल । और === ऑपरेटर उस ऑब्जेक्ट पर विचार नहीं करेगा जो आप दूसरी पंक्ति में बना रहे हैं, जिसकी आपको आइटम सरणी में मिलती है, बस क्योंकि वे दो हैं विभिन्न वस्तुओं

शायद यह आपकी मदद करेगा: 

  यदि ({"a": 1} === {"a": 1}) अलर्ट ("बराबर"); अन्य अलर्ट ("बराबर नहीं");

दो ऑब्जेक्ट बराबर नहीं हैं इसलिए केवल एकमात्र समाधान सरणी के सभी मदों पर पुनरावृत्त होना और प्रत्येक एक के गुणों को अपने नए ऑब्जेक्ट की तुलना करना होगा (टिमजेवी के उत्तर में प्रदान किया गया है)।

फ़ायरफ़ॉक्स में केवल एक अंतर्निहित है जो यह बनाता है कार्य आसान है।


Comments

Post a Comment

Popular posts from this blog

java - org.apache.http.ProtocolException: Target host is not specified -

-
I have written a simple httprequest / response code and I am getting this error below: I used to type in my classpath httpclient, httpcore, common -Codecs and general logging. I am very new to Java and I do not know what's going on here. Please help me. code: import org.apache.http.client.HttpClient; Import org.apache.http.client.methods.HttpGet; Import org.apache.http.HttpResponse; Import org.apache.http.impl.client.HttpClientBuilder; Import org.apache.http.Header; Import org.apache.http.HttpHeaders; Public class UnshorteningUrl {public static zero main (string [] args throws exception {HttpGet request = zero; HTTP Client Client = HTTP ClientBuilder.credit (). Build (); Try {Request = New HTTP Gate ("trib.me/1lBFzSi"); HttpResponse httpResponse = client.execute (request); Header [] header = httpResponse.getHeaders (HttpHeaders.LOCATION); // Preconditions.checkState (headers.length == 1); String new url = header [0] .getValue (); System.out.println ("new url...
Read more

api - Google Analytics with CakePHP -

-
I am trying to get data from my Google analytic account, I have been using a plugin for KPHP and its I am The plugin works, I can get a list of books from a specific author like the example. I want to display some information for cake from my Google Analytical Account. I have a few questions, how can I get Project_ID, IDs, secret? CorePPP of my plugin: $ Config = array ('GoogleAPI' => defines the option of array (/ ** * 'client' client) / 'Client' = & gt; array ('ApplicationName' = & gt; 'app', 'id' = & gt; '?', 'Secret' = & gt; '?', 'Developer key' & Gt; 'xxxxxxxxxxxxxxxxxxxx'),)); Test Controller: & lt ;? Php AP :: Usage ('app controller', 'controller'); Class Test Controller AppController {Public $ component = array ('GoogleAPI.GoogleAPI' => Array ('service' => array ('analytics')); Public function index...
Read more

c# - Chart control: Design messed Up after clearing and re-adding Y-Values -

-
Image
The day was struggling with this. I have three series on a chart that looks like this. Note: I am using vanof control. They are being added on the basis of input from the calculation. I am using this code to add value to each series. this.chart1.Series ["green"]. Points. AddY (greenvalue); This.chart1.Series ["totalsaving"] Points.AddY (totalsavingvalue). This.chart1.Series ["blue"] Points.AddY (bluevalue). I have set series properties like this. Both green and totalsaving are set to StackedColumn, the blue chart is set to the column for type. I started then To do is a button that brings the user back to the input field and then I am using this code to clear the series values ​​on the start code. chart 1. Series ["totaling"]. Points. clear (); Chart1.Series ["green"] Points.Clear () .; Chart1.Series ["blue"] Points.Clear () .; The same calculation click above is being calculated for the calculation of th...
Read more