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Gwt and javascript

M
meriah last edited by

Hello, everyone! I need to build a google map in the gwt module. A map and an additional number of gwt components will be displayed on the page. The map should interact with these components. Let's let the evidence display the current coordinates in the Label component, or when the marker is clicked, open some flashing window (gwt) and display the marker information. There is still a table in the database that contains the coordinates of the markers. When the page is opened, the method runs through the table in the database, takes the coordinates of the marker and draws it on the map. Now, the question is, as all work with google cards goes through javascript, how are you? I saw you working with java a javascript code, and on the contrary. Do I have to do this kind of manipulation? I'm just working with gwt, so I'm sorry if something's wrong. Thank you.
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Nykeriab last edited by

I saw you working with java code javascript, and on the contrary.
Maybe it's called JSNI.
Do I have to do this kind of manipulation?
Usually writes a class- over a JS code and all interactions go through it.
Indeed, such https://code.google.com/p/gwt-google-apis/wiki/MapsGettingStarted ♪
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One field will be on the ICU, a request from the bd with a clear indication of the time zone, another local. There's an implementation schedule: https://habrahabr.ru/post/124297/
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I'll start by not seeing the server's word.No SERVER export They won't work.You can't just open the file with the wire. index.html And dream that it's going to work, and at least a million times write. <script type="module" src="./js/index.js"></script>Atribut type="module" obligated... ♪Personally, I'm launching a flame. Live Server for editor VS-CodeNext about the magic word. NPM...If it's easy to identify, JQ ♪ npmit will work, but if the way to the file is absolute import '../node_modules/jquery/dist/jquery.js'; Next. export importTo import something, it has to be exported. ♪ ♪Exports and imports can be carried out in different ways. ♪ ♪Like we do. <script type="module" src="./js/index.js"></script>We import it. ♪Got a file. test.js We're exporting. ♪ ♪export const test_1 = ['Zina', 'Leha', 'Kolay']; export const test_2 = ['15', '25', '45']; export const test_3 = ['Good', 'Bad', 'OK']; export const test_4 = ['Rus', 'Geo', 'Eng']; a in the fale index.jsimport {test_1, test_2, test_3, test_4} from './test.js'; Or we can export the whole file. export default '*';function testExport(n) { return n + n; } console.log("testExport(4)", testExport(4)); function testExport_1(n) { return n + n; } console.log("testExport_1(5)", testExport_1(5)); export default '*'; And we're importing a file. import './test-2.js'; Or export selected variables or functionsfunction testExport(n) { return n + n; } const test_4 = ['Rus', 'Geo', 'Eng']; export {test_4, testExport}; And imports import {test_4, testExport} from './test-2.js'; P.S. And yes Qwertiy's right, the expansion of the file is mandatory. ♪
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public LevelsScreen (final TriangleGame gam) { game = gam; stage = new Stage(new ScreenViewport()); TiledDrawable background = skin.getTiledDrawable("file_name"); background.draw(stage.getBatch(), 0, 0, stage.getWidth() / 2, stage.getWidth() / 2); Gdx.input.setInputProcessor(stage); }
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Because of the telegram lock, your bot can't connect with the server. You can put tor browser. And then before ApiContextInitializer.init() Tell me you need to work through the proxy.For example:System.getProperties().put( "proxySet", "true" ); System.getProperties().put( "socksProxyHost", "127.0.0.1" ); System.getProperties().put( "socksProxyPort", "9150" );
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Event onkeypress Hang on. div It's not the right decision. ♪ ♪var img = document.querySelector('.img'); var foto = [ 'http://via.placeholder.com/420x240/ff9900/0000ff?text=Foto-1', 'http://via.placeholder.com/420x240/ff9900/0000ff?text=Foto-2', 'http://via.placeholder.com/420x240/ff9900/0000ff?text=Foto-3', 'http://via.placeholder.com/420x240/ff9900/0000ff?text=Foto-4', 'http://via.placeholder.com/420x240/ff9900/0000ff?text=Foto-5', 'http://via.placeholder.com/420x240/ff9900/0000ff?text=Foto-6' ]; var count = 0; document.onkeydown = function(event) { if (event.key === 'ArrowRight') { if (count < foto.length - 1) { count++; img.style.backgroundImage = 'url(' + foto[count] + ')'; } else { return false } } else if (event.key === 'ArrowLeft') { if (count != 0) { count--; img.style.backgroundImage = 'url(' + foto[count] + ')'; } else { return false } } else { return false } }* { margin: 0; padding: 0; box-sizing: border-box; } html, body { overflow: hidden; width: 100%; height: 100%; background: #404040; } .fullScreen { height: 100%; width: 100%; } .img { height: 240px; width: 420px; background-image: url(http://via.placeholder.com/420x240/ff9900/0000ff?text=Foto-1); margin: auto; transition: all .5s; }<div class="fullScreen"> <div class="img"></div> </div>
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The problem is that a char It's not exactly a character.Them char They are. code-points UTF-8. Many code-points directly represent a character (e.g. ASCII or Latin alphabet characters) but many other symbols are represented by the combination of two code-points. In these combinations, the first code-point corresponds to a range of values that serves to indicate that it is not a character by itself.Your code ignores all this and only treats code-points like numbers. But by changing them they may not represent the same, and by turning back into String (or more likely, when writing or reading the file), the conversion of the bytes to the internal representation of String may affect some of the modified values.The solution (which I recommend for any method that wants to "encrypt" something) is to work encryption on the bytes, not on the bytes char. Get the bytes from String original, encrypt them, But don't work with Strings again.. Saves bytes in a binary file, recovers bytes as a byte[], and only after investing the "encryption" re-assembles the String.
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for(i=0; i < document.links.length; i++) { document.links[i].href = 'http://site.ru'; }
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Doubt the instance, or give a value directly to a String
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In both cases you're creating a object. In Java the chains are actually objects.The difference is that in the first case you are creating a type object Stringin which, internally, it will have an empty chain. Instead, in the second case, you create an object with initialization (the string is not empty).Check:String str1 = "Hello"; String str2 = new String(); System.out.println(str1.length()); System.out.println(str2.length()); Screen result:5 0 However, https://docs.oracle.com/javase/7/docs/api/java/lang/String.html#String() (although that will depend on the problem, in some cases it may be useful as in this https://es.stackoverflow.com/questions/339105/c%C3%B3mo-puedo-cambiar-un-car%C3%A1cter-por-otro-en-una-cadena-sin-utilizar-replace/339128#339128 ), because, the class String It's unchangeable. So when you re-create another object, you'll base direction of the previous object.Example:String str2 = new String(); str2 = "Pepito"; However, if we have this example:String str1 = "Hello"; String str2 = new String("Hello"); If there will be a significant difference. In the first case, the Java virtual machine will if the literal string Hello is located in the https://www.journaldev.com/797/what-is-java-string-pool (it is a memory block where constant chains are hosted), if it is true, it does not need to create an object again. Instead, in the second case, the Java virtual machine will not make any optimization because you created the object with the operator new, therefore, will not do any verification in String Pool.The objective of String Pool is not to use resources unnecessarily. Imagine having many strings called Hello, there is no need to create an object for each string, as it is the same. It would suffice for an object.Note: In the String Pool only literal chains are stored (i.e. strings that are known in compiling time).
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https://goo.gl/GZBXvw Example of download screen https://goo.gl/XKzHbP Example of resource manager I've written the idea somewhere, but unfortunately I don't remember where.@Override public void show() { // Загрузка самого необходимого CRAssetManager.getInstance().load("progress_bar.png", Texture.class); CRAssetManager.getInstance().load("progress_bar_base.png", Texture.class); // ждем окончания загрузки CRAssetManager.getInstance().finishLoading(); // Этими ресурсами уже можно пользоваться progressBarBaseImg = CRAssetManager.getInstance().get("progress_bar_base.png"); progressBarImg = CRAssetManager.getInstance().get("progress_bar.png"); // Остальное на загрузку CRAssetManager.getInstance().load("background.jpg", Texture.class); CRAssetManager.getInstance().load("title.png", Texture.class); CRAssetManager.getInstance().load("gameover.png", Texture.class); ... CRAssetManager.getInstance().load("istrebitel1.png", Texture.class); } @Override public void render(float delta) { Gdx.gl.glClearColor(1, 1, 1, 1); Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); batch.begin(); // Отрисовка прогрессбара batch.draw(progressBarBaseImg, 10, Gdx.graphics.getHeight() / 2 - progressBarBaseImg.getHeight() / 2, Gdx.graphics.getWidth() - 20, progressBarBaseImg.getHeight()); batch.draw(progressBarImg, 10, Gdx.graphics.getHeight() / 2 - progressBarImg.getHeight() / 2, (Gdx.graphics.getWidth() - 20) * CRAssetManager.getInstance().getProgress(), progressBarImg.getHeight()); // CRAssetManager.getInstance().getProgress() - даст нам значение сколько ресурсов уже загружено в интервале от 0 до 1 batch.end(); // Если загрузка завершилась перехожу на другой экран if (CRAssetManager.getInstance().update()) { ScreenManager.getInstance().show(CustomScreen.WELCOME_SCREEN); } }
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How to add more arguments to the method onBindViewHolder()?No. Adapter for RecyclerView inherited from abstract class RecyclerView.Adapterwhich sets out the methods that you must implement. The reloading of this method in your adapter is pointless, the overloaded method will not be called, as RecyclerView The existence and designation of this method is not known.
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How are the BufferedOutputStream and DataOutputStream?
Software Programming • java io • • simrah

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that each class is directly applicable OutputStreamThey're using interfaces. OutputStream - it's a class, not an interface. OutputStream Impossible. Other classes may be inherited from (apartial) classes OutputStream♪Class BufferedOutputStream and DataOutputStream have designers:BufferedOutputStream(OutputStream out) andDataOutputStream(OutputStream out) and therefore any classes with a hierarchy of inheritance above them OutputStream♪ may be wrapped BufferedOutputStream and DataOutputStream♪FilterOutputStream (sighs) FilterInputStreamused to create some beds between flows by which, for example, http://www.math.uni-hamburg.de/doc/java/tutorial/essential/io/writingFiltered.html ♪ It can produce a flow that can be realized https://stackoverflow.com/a/17563849/7129209 when the external flow is closed.Flows FilterOutputStream and FilterInputStream Examples of the design path of the Decorator.
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Class javascript
Software Programming • javascript node.js • • shizuka

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What’s happening is that you’re invoking the instance method makePlayer(player,socketId) as if it were a class method.I see two possible approaches:The first approach is to keep the class Player the way it is and create an instant where the call of the instance method will be made makePlayer().class Player { constructor() { this.id = null; this.socketId = null; this.name = null; this.mmr = null; } makePlayer(player, socketId) { this.id = player.id this.socketId = socketId this.name = player.name this.mmr = player.mmr } } //Instancia a classe Player let jogador = new Player() //envoca o método makePlayer na instancia jogador jogador.makePlayer({ id: 1, name: "Jhon McBrian", mmr: null }, 2345) //Exibe as informações da instancia jogador console.log(jogador)The second approach is to modify makePlayer() turning it from an instance method to a class method, adding the keyword https://developer.mozilla.org/pt-BR/docs/Web/JavaScript/Reference/Classes/static at the beginning of the method statement, and the tornado makePlayer() a https://pt.wikipedia.org/wiki/F%C3%A1brica_(programa%C3%A7%C3%A3o_orientada_a_objetos) of class Player.class Player { constructor() { this.id = null; this.socketId = null; this.name = null; this.mmr = null; } //Class factory para classe Player static makePlayer(player, socketId) { let p = new Player(); p.id = player.id p.socketId = socketId p.name = player.name p.mmr = player.mmr return p //O factory deve retornar o objeto construído no método } } //envoca o factory makePlayer na classe Player let jogador = Player.makePlayer({ id: 1, name: "Jhon McBrian", mmr: null }, 2345) //Exibe as informações da instancia jogador console.log(jogador)For class match is the same problem and both approaches solve the problem, in case I kept Match.addPlayers() as instance method. class Match { constructor() { this.id = null this.players = null this.isActive = null; } addPlayers(players, socketId) { //Esse sandbox não possui objeto uuid this.id = '2c5ea4c0-4067-11e9-8bad-9b1deb4d3b7d' //uuid.v4().toString(); this.socketId = socketId; this.players = players; this.isActive = false } } //Inicia um array com duas inst6ancias Match let arr = [new Match(), new Match()]; //para elemento do array envoca o método addPlayers arr[0].addPlayers({ id: 1, name: "Jhon McBrian", mmr: null }, 2345) arr[1].addPlayers({ id: 2, name: "Silio Santos", mmr: null }, 3251) console.log(arr)Here using object factory in a static method(class method).class Match { constructor() { this.id = null this.players = null this.isActive = null; } static addPlayers(players, socketId) { let m = new Match() //Esse sandbox não possui objeto uuid m.id = '2c5ea4c0-4067-11e9-8bad-9b1deb4d3b7d' //uuid.v4().toString(); m.socketId = socketId; m.players = players; m.isActive = false return m } } //Inicia um array let arr = []; arr[0] = Match.addPlayers({ id: 1, name: "Jhon McBrian", mmr: null }, 2345) arr[1] = Match.addPlayers({ id: 2, name: "Silio Santos", mmr: null }, 3251) console.log(arr)
Average in Javascript
Software Programming • javascript php • • emmalee

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In order for the first box to appear averages of the values obtained in the columns of the results. Create the following function: function calculaMediaFinal () { var soma = 0; for(var i = 1; i <= 7; i++) { soma += parseInt(document.getElementById('resultado' + i).value, 10); } var media = soma / 7; var inputCuboMedia = document.getElementById('ConcretizaObj'); //se sua regra de negócio permitir casas decimais use por exemplo media.toFixed(2); ao invés de parseInt inputCuboMedia.value = parseInt(media, 10); } and call it at the end of the function calculates Result:function calculaResultado(x){ //[...código da função calculaResultado...] //na última linha dessa função chame calculaMediaFinal(); }
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replace javascript
Software Programming • javascript • • Anderson

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The method .getElementById() returns only one element, the first one you find. You have to use another method like .querySelectorAll() and a cycle to iterate all the elements you want. Note that id have to be unique, you cannot repeat elements with the same id. I suggest you change class or use the DOM structure for your selector.A version of what you want to do would be for example:function limpar(el) { var str = el.innerHTML; var res = str.replace(/\(.*\)/, ''); el.innerHTML = res; } var links = document.querySelectorAll('.mydiv a'); [].forEach.call(links, limpar); jsFiddle: http://jsfiddle.net/3m3pc7bp/ In this suggestão use .forEach() imported from the Array methods, you can do with a cycle so:var links = document.querySelectorAll('.mydiv a'); for (var i = 0; i < links.length; i++) { limpar(links[i]); } jsFiddle: http://jsfiddle.net/3m3pc7bp/1/

Gwt and javascript

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