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How do you get the value of javascript?

C
courtlanda last edited by
In javascript, the code has multiple performance challenges.
The C# program needs to read one of the parameters.
For example, javascript code has the following functions:
```
app.log("регулярное выражение", /\w+\d+/gi, Date.now());
app.log({'id':1, 'value':123});
app.log("json array", [[1,2,3], [3,2,1]]);
```
In the C#, you need to read javascript code, find the challenges to the functions, and get, respectively:
```
"/\w+\d+/gi"
"{'id':1, 'value':123}"
"[[1,2,3], [3,2,1]]"
```
Regex can be used for this, but regular expressions will be quite complex.
Maybe there's another way without using regular expressions?
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rielyn last edited by

Transmit the data from Javascrip to sysarp, for example:
http://www.codeproject.com/Answers/708709/Pass-javascript-variables-value-to-Csharp-code-beh#answer2
https://softwareengineering.stackexchange.com/questions/122357/how-should-data-be-passed-between-client-side-javascript-and-c-code-behind-an-a
Line methods may be used to extract values, such as: http://www.dotnetperls.com/substring ♪ http://www.dotnetperls.com/split ♪ http://www.dotnetperls.com/between-before-after
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How to get the Id value from an HTML element through a JavaScript variable?
Software Programming • javascript • • fbio

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I made a very simple example, first I take the value of the first input, assuming you need that value to select another HTML element, then I have to call the function where I pass it as a parameter my result of the first input and the function with name segunda I can put the name of the parameter that it creates convenient will always have the value that you make it passed initially, then you only have to get the value of the HTML tag with the name of the variable that you have passed by parameter, you do not need to add quotes as the value comes as string, I hope to have been clear, any doubt questionwindow.addEventListener('load',function (){ let text = document.getElementById('texto').value; segunda(text); function segunda(var1){ let text2 = document.getElementById(var1).value; console.log(text2); } });<input type="text" id="texto" value="Hola"> <input type="text" id="Hola" value="Loquesea">
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How to get the value held in a function and put in a text, JavaScript?
Software Programming • javascript functions text • • Nykeriab

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A

The elements input they have innerHTML once they are self closing (auto closed).You must use the property .value to change his value.
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Parking key.key2 in multi-dimensional object
Software Programming • javascript json node.js for objects • • courtlanda

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It's probably the first thing to get both objects from the mass: function parse(key, value) { var split = key.split("."); var object = {}; //object[split[0]] = (split.length > 1) ? parse(split.slice(1).join("."), value) : value; if(split.length > 1) { object[split[0]] = parse(split.slice(1).join("."), value); } else { object[split[0]] = value; } return object; } var json = { 'key1.key2.key3':'test', 'key1.key3':'value' }; for(var key in json) { console.log(parse(key, json[key])); }</code></pre></div></div></p><p>And then cross objects. <img alt="введите сюда описание изображения" src="https://i.stack.imgur.com/6yAy6.gif"/> </p><p><div class="snippet" data-babel="false" data-console="true" data-hide="false" data-lang="js"><div class="snippet-code"><pre class="snippet-code-js lang-js prettyprint-override"><code>var json = { 'key1.key2.key3':'test', 'key1.key3':'value' }; var objectMerge = []; for(var key in json) { objectMerge.push(parse(key, json[key])); } console.log(merge(...objectMerge)); function merge() { var object = {}; for(var i=0; i < arguments.length; i++) { for(var key in arguments[i]) { if(typeof arguments[i][key] == "string") { object[key] = arguments[i][key]; } else { object[key] = Object.assign({}, object[key], merge(arguments[i][key])); } } } return object; } function parse(key, value) { var split = key.split("."); var object = {}; //object[split[0]] = (split.length > 1) ? parse(split.slice(1).join("."), value) : value; if(split.length > 1) { object[split[0]] = parse(split.slice(1).join("."), value); } else { object[split[0]] = value; } return object; }
E

How to get the ng-value checkbox value in AngularJS/Ionic
Software Programming • javascript angularjs ionic • • emran

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I put down an example of https://docs.angularjs.org/api/ng/input/input%5Bradio%5D using AngularJS for you to take as an example. You just need to link to ng-model with the variable you want to assign value. I noticed that you describe the behavior of a radio and not one check, after all it only needs a value.angular .module('app', []) .controller('CheckController', CheckController); function CheckController() { var vm = this; }<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app="app" ng-controller="CheckController as vm"> <input type="radio" ng-model="vm.opcao" value="A"/> <input type="radio" ng-model="vm.opcao" value="B"/> <input type="radio" ng-model="vm.opcao" value="C"/> <input type="radio" ng-model="vm.opcao" value="D"/> <input type="radio" ng-model="vm.opcao" value="E"/> <br> <br> Opção escolhida: {{vm.opcao}} </div>In case you will only use ng-value if you need a dynamic value for the option:angular .module('app', []) .controller('CheckController', CheckController); function CheckController() { var vm = this; vm.a = 'yahoo'; vm.b = 'google'; }<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app="app" ng-controller="CheckController as vm"> <input type="radio" ng-model="vm.opcao" ng-value="vm.a"/> <input type="radio" ng-model="vm.opcao" ng-value="vm.b"/> <br> <br> Opção escolhida: {{vm.opcao}} </div>
Deinitialization of static class
Software Programming • c sharp net • • irl

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Wrong way.You can use the reflections to re-establish the static designer:typeof(Foo).TypeInitializer.Invoke(null, null); Cos methodDon't break the CLR law, that the statistical design is called only once. Write a normal statistical method. Reset♪ In a static designer, you can call him to avoid duplicating the code.Normal wayTry to refrain from a global state that can be influenced by any class and on which any class may also depend. Global variables are evil.
O

Get value selects form_dropdown
Software Programming • javascript php • • obi

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I made the answer as talked in the comments, the whole code is commented for better understanding.$(function() { // Copio os campos var cpf = $("#input-group-cpf").clone(); var cnpj = $("#input-group-cnpj").clone(); // Removo os campos da tela $("#input-group-cpf").remove(); $("#input-group-cnpj").remove(); // Adiciono como padrao o cpf $(".numero-documento").append(cpf); atualizaMascara(); //Coloco o evento clique no radio $('[name="pessoa"]').on("click", function(){ // Removo os campos da tela $("#input-group-cpf").remove(); $("#input-group-cnpj").remove(); // E adiciona o campo correspondente de acordo com o valor do radio if($(this).val() == "fisica"){ $(".numero-documento").append(cpf); }else{ $(".numero-documento").append(cnpj); } atualizaMascara(); }); }); function atualizaMascara(){ $(".numero-documento").find("#input-group-cpf").find("input").mask('000.000.000-00', {reverse: true}); $(".numero-documento").find("#input-group-cnpj").find("input").mask('00.000.000/0000-00', {reverse: true}); }<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://igorescobar.github.io/jQuery-Mask-Plugin/js/jquery.mask.min.js"></script> <input type="radio" name="pessoa" value="fisica" checked> Pessoa Física<br> <input type="radio" name="pessoa" value="juridica"> Pessoa Jurídica<br> <div class="numero-documento"> <div id="input-group-cpf"> <label for="cpf">CPF</label> <input type="text" class="cpf" id="cpf"/> </div> <div id="input-group-cnpj"> <label for="cnpj">CNPJ</label> <input type="text" class="cnpj" id="cnpj"/> </div> </div>
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Values of a Select - Javascript
Software Programming • javascript select • • Jolied

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This can be controlled without the need for JavaScript, only with HTML and property required to make them compulsory. What you should do is:Make the select it is compulsory to place the attribute requiredChange the value of the "Choose one" option from "none" to simply "" (empty chain)If the browser supports HTML5 and required (all modern browsers) will ensure that the form cannot be sent until that drop-down list has a valid (different to "") value.Demo:<form> <select name="tipo" id="tipo" required> <option selected value="">Elige uno...</option> <option value="rock">Rock</option> <option value="pop">Pop</option> <option value="punk">Punk</option> <option value="indie">Indie</option> </select> <input type="submit" value="enviar"> </form>Now, if you don't want to change the HTML as you put in the comments below, and what you want is to fix the JavaScript function, the problem is easy to identify: if in which you make the comparison is a little weird and fails. Right now you do:if (!document.getElementById("tipo").value=="none"){ That mixture of !, variable, comparison and value is not good. It seems that the precedence of operators is playing you a bad past (it is running !document.getElementById("tipo").value before comparison == and that's why it's always going to be fake. Instead it should be:if (document.getElementById("tipo").value!="none"){ And it works as you can see in this demo:function comprobarTipo() { if (document.getElementById("tipo").value != "none") { //Para comparar con el texto sería: .text="Elige uno..." var tipo = document.getElementById('tipo').value; return true; } else { document.getElementById("errores").innerHTML = "El campo TIPO debe elegir una opción."; document.getElementById("tipo").focus(); return false; } } document.querySelector("form").addEventListener("submit", function(e) { e.preventDefault(); });<form> <select name="tipo" id="tipo"> <option selected value="none">Elige uno...</option> <option value="rock">Rock</option> <option value="pop">Pop</option> <option value="punk">Punk</option> <option value="indie">Indie</option> </select> <div id="errores"></div> <input type="submit" value="enviar"> </form>
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Get values from a json / object
Software Programming • javascript jquery json • • terrea

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To pick up street values, number, email, etc, you have to do one for each inside the other, for example:selectestado.change(function() { let estadoselecionado = $(this).val(); $.map(estados[estadoselecionado], function (cidades) { $.map(cidades, function (enderecos) { console.log( `Rua: ${enderecos.rua}, ${enderecos.numero}` ) }); }); }) But if you just want to take the name of the cities, just use:selectestado.change(function() { let estadoselecionado = $(this).val(); $.map(estados[estadoselecionado], function (cidades, cidade) { console.log( cidade ) }); })
How do you get a few values from mysql
Software Programming • php mysql • • Alberto

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It's most convenient to make three requests.First get all the books, then collect all their id and then make two requests to the genrams and the authors through book_id IN (...);Right, forget about mysqli like a terrible dream, and do something like that.$books = $pdo->query("SELECT * FROM books")->fetchAll(PDO::FETCH_UNIQUE) $ids = array_keys($books); and beyond two requests, genrams and authors, IN https://phpdelusions.net/pdo#in
Reload the violets in footer (Wordpress)
Software Programming • javascript wordpress cms plugin wp plugin • • Laycee

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5th parameter wp_register_script() - it's an indication to place the violin in the futher.For example:wp_register_script( 'fotorama-wp.js', // название скрипта FOTORAMA_PLUGIN_URL . 'fotorama-wp.js', // URL-скрипта array(), // названия скриптов, от которых зависит регистрируемый 1, // версия регистрируемого скрипта TRUE // TRUE-размещение в подвале / FALSE-в заголовке ); See also: https://codex.wordpress.org/Function_Reference/wp_register_script wp_register_script() Code (English)
How do you get the value from the user?
Software Programming • python python 3.x pytelegrambotapi • • inna

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As far as I'm concerned, you're using pytelegramapi, if so, bot.send_message doesn't bring anything back, so the variable can't sign.
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Javascript Value Rental
Software Programming • javascript • • guilherme

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Use the same Math.Round() but round about the order of magnitude you want:function arredondaPorOrdem(nr, ord) { return Math.round(nr / ord) * ord; } var decimas = arredondaPorOrdem(153, 10); var cincoEmCinco = arredondaPorOrdem(153, 5); console.log(decimas, cincoEmCinco); // 150 155
Verify decimals
Software Programming • javascript • • Bogopo

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So you can validate if it is a stringfunction esString(myVar){ return (typeof myVar == 'string' || myVar instanceof String); } console.log(esString(1)); console.log(esString("1")); console.log(esString(new String(1)));And it is always advisable to make the string parseo to numbersfunction esString(myVar){ return (typeof myVar == 'string' || myVar instanceof String); } function suma(var1, var2){ var numVar1 = var1; var numVar2 = var2; if(esString(var1)){ if(var1.indexOf(".")>=0) numVar1 = parseFloat(var1); else numVar1 = pareseInt(var1, 10); } if(esString(var2)){ if(var2.indexOf(".")>=0) numVar2 = parseFloat(var2); else numVar2 = pareseInt(var2, 10); } console.log( numVar1 + numVar2 ); } suma("5.2", 12);
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How do you get the value from the field?
Software Programming • javascript • • Saumya

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It's better not to use jQuery.<input type="text" id="someId" name="someName" /> //первый способ: var v1 = document.getElementById('someId').value; //второй способ: var v2 = document.getElementsByName('someName')[0].value;
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Angular and text transfer to textarea
Software Programming • javascript angular typescript • • derk

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Make a move in the middle of the word, you need to know the coordinates of the courseor.there: https://www.typescriptlang.org/play?#code/CYUwxgNghgTiAEA3W8AuIAerYigLngAkAVAWQBljNUBBOKAUQhAFsQA7VAbgCgf0sOKADoowYA0QdU5AJYBndOxAwAFAHIA1iACewAPYB3duoA08VSAIBpXQCN9sCVM4BKeAF4AfPADePeHgwfXZFPyD9UHMwVBgIWx14AF9PeBAA%20FkAMwt1Bk4VdU8PDwjQd39AwJBhAAc4F1QAERAsqABXCFRVVwzq4UV9WoAFGCGoAHMoVFkQnr7MnNUYuISKhcDg0P1mYQh9CY0ViDSCmHVeqqqs-X1LYTB2mDhOYlgJkFR4KHlv9h1LlUUiAIPIEJUrhFtrt9od1NJCoDAkkMiikr0%20Fl2uwYrN2PAbncBNh6AQSBQqFg6LgmKxpOtNiEwr54GDmLiQgBlEmoczICDtBApUrEoR8QKi%20jCfmC1IAAwAJL4ZTV5BBZGAQKoAAzmNngGZcnmuJJK9QAHRMpuVUAFqvVmtU%20o57G5sF5SFtgr2HAmqAAFia5RlJbgBiCDXi3TAvqVnYbXTz4ABqeAARhD1CE4fZCfywFS8ajSdTGaSQA Here's an example:"use strict"; textarea.addEventListener('keydown', (e) => { const { code, ctrlKey } = e; if ('Enter' === code || 'NumpadEnter' === code) { e.preventDefault(); e.stopPropagation(); if (ctrlKey) { console.log('ctrl enter'); foo(e.currentTarget); } else { console.log('enter'); } } }); function foo(textarea) { const { selectionStart, value } = textarea; textarea.value = `${value.slice(0, selectionStart)}${'\n'}${value.slice(selectionStart, value.length)}`; textarea.selectionStart = selectionStart + 1; textarea.selectionEnd = selectionStart + 1; }<textarea id="textarea"></textarea>selectionStart ♪ https://developer.mozilla.org/ru/docs/Web/API/HTMLInputElement/setSelectionRange UPD:if ('Enter' === code || 'NumpadEnter' === code) {}

How do you get the value of javascript?

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