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How do you get data from another form or state ReactJS

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zymir last edited by

There are two composite elements, their form 1 and form 2. Form 2 consists of inputs and rolling lists. The user completes these components and presses the button (in form 1) of data from Form 2. Now the question is, how do I get the data from another form? I tried to get through ReactDOM.findDOMNode. There's no point. Thank you.
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magpie QA Engineer last edited by

As an option, a general repository can be made for both elements. Read FLUX. I like Baobab. But if, for your case, it's a gun shot, you can do something simple and yourself.
Another option is to place both forms in the parent ' s receiver ' s overall parent ' s component and to receive and transmit the status through the parent.
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Just digging.Normal values: rows, numbers, bulbs, null/undefined at AC assignments are copied in whole or, as they say, " " .It's not like the objects.In the variable to which the object is assigned, it is not the object itself, but rather the object. “the address of his place in memory”, in other words, the reference to him.So you've got the variable. meh There's not a scatter, but a reference to it and you add an element.
How to get a file name from the header when you get a file from another server on your own.
Software Programming • php curl • • briley

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I was very helpful, thank you.<?php $ch=curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, 10); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_NOBODY, 1); curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0'); $header = curl_exec($ch); if(preg_match('~Content-Disposition:\hattachment;\hfilename="\K[^"]+~i',$header,$match)){ $fileName = urldecode($match[0]); echo $fileName; } curl_close ($ch); ?>The code works clearly.
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Problems with different functions and Footable
Software Programming • javascript jquery bootstrap • • tahishae

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The problem you have is that you can't attack the same type of event twice about the same element. If your new checkbox already has an event change for having the class .check, you can't add a new one for having the id #checkGeneral.One solution would be that new one checkbox I didn't have the class. .check attacking her own event change for your id.Another option would be to use the same function for all checkbox, as you are doing, and identify within the function to what checkbox He's doing it. change.<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <input id="checkGeneral" class="check" type="checkbox"> <input id="check2" class="check" type="checkbox"> <input id="check3" class="check" type="checkbox"> <input id="check4" class="check" type="checkbox"> <script> $(document).on('change', '.check', function(){ if ($(this).attr('id') == 'checkGeneral') { console.log('Lo que necesito ahora'); } else { console.log('Función anterior'); } }); </script>
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Separate data from one table on data from another table related indirectly
Software Programming • sql select • • tahishae

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The solution can be optimized by speed using JOIN. The request itself is correct.
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Assign all blocks that must not be scrubbed and visible on the screen:position: fixed; In such a case, the entire page will be checked, together with the necessary div, regardless of the location of the mice indicator on the page, and the above-mentioned blocks will always be displayed on the screen at the time of the opening.
Javascript show div's variations in different time intervals
Software Programming • javascript front end • • carriann

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I don't know if it's the best way to do it, but it worked: $(document).ready(function() { var ul = $("ul").find("li"); var rand = function() { var randNumber = Math.floor((Math.random() * ul.length) + 0); ul.each(function() { $(this).hide() }); $(ul[randNumber]).show(); setTimeout(rand, randNumber * 300); } rand(); })<script src='https://code.jquery.com/jquery-3.2.0.min.js'></script> <ul class="reactions"> <li hidden class="size1">:)</li> <li hidden class="size2">:o</li> <li hidden class="size3">:(</li> <li hidden class="size1">:/</li> <li hidden class="size2">:-</li> <li hidden class="size3">:*</li> </ul>I created a loop with SetTimeout() with random time, and an array with all li which is varying, taking advantage of the same random number and playing in the array index. This number goes from 0 to the length of the array, and within the loop time it is multiplied by 300, but you can create another random number to specify the maximum time as you wish. https://jsfiddle.net/s2dh3wef/1/
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How to get data from an input, do a calculation and play in another input?
Software Programming • javascript php • • Nykeriab

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Because they are values that will be typed, we recommend using JavaScript to do the calculation. However, the imc formula in your question is incorrect. The correct one is:imc = peso / (altura)² and not imc = peso x (altura)²Formula: weight (in kg) divided by height square (in meters)1).To play the calculation value in the field name="imc", can use querySelector to take the values of the fields name="pesoatual" and name="altura" and update the result dynamically as the values are inserted into the fields:var peso = document.querySelector("input[name=pesoatual]"); var altu = document.querySelector("input[name=altura]"); peso.addEventListener("keyup", calcImc, false); altu.addEventListener("keyup", calcImc, false); function calcImc(){ var peso_val = parseFloat(peso.value); var altu_val = altu.value; altu_val.match(/[,.]/) ? altu_val=parseFloat(altu_val.replace(",",".")) : altu_val=parseFloat(altu.value)/100; imc = (peso_val / (altu_val * altu_val)).toFixed(1); // "1" significa 1 casa decimal if(!isNaN(imc)){ document.querySelector("input[name=imc]").value = imc; } }<div> <input class="campo-form-c" type="text" name="pesoatual" placeholder="Peso Atual"> </div> <div> <input class="campo-form-c" type="text" name="altura" placeholder="Altura"> </div> <div> <input class="campo-form-c" type="number" name="idade" placeholder="Idade"></br> </div> <div> <input class="campo-form-c" type="date" name="datan" placeholder="Data de nascimento"></br> </div> <div> <input class="campo-form-c" type="text" name="medidab" placeholder="Medida do Braço" maxlength="5"> </div> <div> <input class="campo-form-c" type="text" name="medidat" placeholder="Medida Tricipital" maxlength="5"> </div> <div> <input class="campo-form-c" type="text" name="medidaabd" placeholder="Medida Abdominal" maxlength="5"></br> </div> <div> <input class="campo-form-c" type="text" name="imc" placeholder="IMC" maxlength="4"> </div> <div> <input class="campo-form-c" type="text" name="gorduratricpital" placeholder="Gordura Tricipital" maxlength="5"> </div> <div> <input class="campo-form-c" type="text" name="circunferenciabraço" placeholder="Circunferência do Braço" maxlength="5"></br> </div> <div> <input class="campo-form-c" type="text" name="circunferenciambraço" placeholder="Circunferência Muscular do Braço" maxlength="5"></br> </div>1 Although https://pt.wikipedia.org/wiki/%C3%8Dndice_de_massa_corporal the calculation of imc be meters, for calculation purposes, the above code also accepts values in cm, the result will be the same.
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Spring MVC <form:form> and CommandName</form:form>
Software Programming • java spring jsp spring mvc • • obi

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Yeah, that's right. data binding♪ Spring extracts the data from the request and provides you with a ready object. The use of the TLD Spring Library is the one that gives you the tigs. form:*() Not required - it simply offers a more convenient way of recording the site in View. You can write shapes on the naked HTML and @ModelAttribute I'll work exactly as well.Nothing. commandName outdated, but apparently retained for opposite compatibility if https://github.com/spring-projects/spring-framework/blob/master/spring-webmvc/src/main/java/org/springframework/web/servlet/tags/form/FormTag.java It's the same object./** * Set the name of the form attribute in the model. * <p>May be a runtime expression. * @see #setModelAttribute */ public void setCommandName(String commandName) { this.modelAttribute = commandName; } /** Get the name of the form attribute in the model. @see #getModelAttribute */ protected String getCommandName() { return this.modelAttribute; }
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How do you get the data from getting the request?
Software Programming • php • • Pearlaqua

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The parameters of the request can be obtained by contacting the superglob mass https://www.php.net/manual/ru/reserved.variables.get.php :$transaction_id = $_GET["transaction_id"]; $service_id = $_GET["service_id"];
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It's js regular, "don't look inside the skirts, but it's all in the skids.
Software Programming • javascript regular expression • • meriah

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That's it. http://regexr.com?38aql :/(^|[\s\n])-(([^\s"'][^"']*?)(?=\s)|(["'])([^\s"'][^"']*?)\4)/g That's it. Not work. "e.g. "for this design.""for that word."Before the expression, a gap, the translation of the line or the beginning of the text would be necessary, and the quotes should stand right before and immediately after the text. This is a necessary condition, inasmuch as the expression between the two expressions in the kavas will also be missed. For the same reason, the second exception to the list cannot be traced above:@eicto, yes, it'll pass, you're right. But track the circumstantials. There's no point in gaps because this form of verification shall be removed and the text shall not a prisoner in a quarry, and a prisoner between the two words in the kavas, because It's not supposed to be a swing. standing right in front of the text, or right away. After him. He'll miss it. "because there's no cure I'm standing next to him. If you do. inspection of the presence of more skirts Pre-topic, taking into account this option, If you don't, it's a word.The expression checks both the double and the one-sided rubber.Several consecutive text processing should be used for a more thorough examination, as https://ru.stackoverflow.com/questions/298048#298148 @VenZell.
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How do you get data from mysql column with data type enum java?
Software Programming • java mysql jdbc • • Avante

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Try that.while ( result.next() ) { String users = result.getString("users"); System.out.println(users); }
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Why is it necessary to use bind when working with ES6 and ReactJS?
Software Programming • javascript react single page applic langua • • Rossere

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this dynamicO bind solves a problem caused by the context of JavaScript, it provides a way to ensure that even decoupling a function of an object the behavior of it continues the same, thus ensuring a integrity of the behavior of the function. That's interesting in case programação funcional, where ideal is terms funções puras, which have as part of their ideology to be a function without side effect. An example of the problem:function Usuario() { this._nome = ''; this.setNome = function(nome) { this._nome = nome; }; this.getNome = function() { return this._nome; }; } var johnDoe = new Usuario(); johnDoe.setNome('John Doe'); console.log(johnDoe.getNome()); // 'John Doe' Here is a simple constructor function that serves to represent the user entity in our system. Note that she does not use bind, and because we are using the object johnDoe, the context of the function does not suffer with any problem. The problems of not using a bind (or other solution) in this case only appear when we disconnect the function of the object.var johnDoe = new Usuario(); var setNome = johnDoe.setNome; setNome('John Doe'); console.log(johnDoe.getNome()); // '' console.log(window._nome)); // 'John Doe' When we unpack a function for a variable, the context of the function becomes the global context, then its behavior is totally broken. Note that the problem also occurs when you pass the function as parameter to another function.var johnDoe = new Usuario(); function popularNome(setNome) { setNome('John Doe'); } popularNome(johnDoe.setNome); console.log(johnDoe.getNome()); // '' console.log(window._nome)); // 'John Doe' When we work with events DOM, where we record a function to listen to an event we also have a similar problem, because the context of the function is changed in the call by the event listener. When the function recorded in an event is called, the scope of the function becomes the element that triggered the action. Like onClick is an event if the bind not be done, he would have this problem:var usuario = { _nome: '', setNome: function(event) { this._nome = event.target.value; } }; var elNome = document.getElementById('nome'); // O contexto da função setNome seria // equivalente ao "elNome" elNome.addEventListener('keyup', usuario.setNome); Example of the problem: https://jsfiddle.net/fvenq166/
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How do you get data from the php data set?
Software Programming • php • • chanisef

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So shorter: echo $result[0]['value_sum'];
How do we combine the elements of the mass in the line without the arguments between them (whether like the letters in the word)?
Software Programming • javascript liabilities • • carriann

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var fruits = ["Banana", "Orange", "Apple", "Mango"]; console.log(fruits.join(""));
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How to make a certain action when the user presses a letter or makes a word?
Software Programming • javascript jquery html5 web • • Saumya

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Simply keep a record of the pressed keys and from there check if words are being formed. You can make it as simple or as complicated as you want: checking on the march or only when you press the ♪, removing the initial characters that are not going to work or not, checking that the pressed keys are letters or not, looking for words or waiting for more "structured" phrases...Here I will put you a basic example, what it does is to read the pressed keys but only processes them if they are letters (ASCII 65 to 90 for capitals, and 97 to 122 for lowercases) adding them to a word; and if the key is not a letter, the word is deleted. At the end it is checked if the word corresponds to a value that I have defined and an action is done. Write "fund" (without quotes) so that the background changes to blue, or "color" so that the color of the text changes to yellow.Demo:var palabra = ""; $(document).ready(function() { $(document).keypress(function(e) { if ((e.which > 96 && e.which < 123) || (e.which > 64 && e.which < 91)) { var letra = String.fromCharCode(e.which).toLowerCase(); palabra += letra; console.log(palabra); } else { palabra = ""; } switch (palabra) { case "fondo": $("body").css("background", "blue"); palabra = ""; break; case "color": $("body").css("color", "yellow"); palabra = ""; break; } }); });<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <h1>Teclado</h1> <p>Escribe "fondo" para cambiar el fondo a azul.</p> <p>Escribe "color" para cambiar el color de texto a amarillo.</p> <p>Pulsa <kbd>Enter</kbd> para recomenzar la palabra.</p>

How do you get data from another form or state ReactJS

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