Posts by Sergio • 133,294 points
2,786 posts
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viewsA: Is there any way to call an action when the method does not exist in a javascript object?
Invocation of functions in Types that are not functions generates error in Javascript. That is to use () at the end of a variable or property that is not a function gives error and there is a tool…
javascriptanswered Sergio 133,294 -
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answers498
viewsA: What is the safe way to define a default value for a function parameter?
Today (2015) this is not yet possible as in PHP. But in the future, with ES6 is! What is possible today (2015): Nowadays, with the Javascript version browsers use this is not possible. The solution…
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answers2363
viewsA: Change height with javascript
It seems to me that you should use a CSS class with that height of 1600px and then use .classList.toggle() to automatically add and remove this class. To change the button text you can check if the…
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answer249
viewsA: Can I write ajax and javascript together?
AJAX is Javascript, is an acronym that means Asynchronous Javascript and XML, Javascript and asynchronous XML. Whether it’s native AJAX (with native Javascript tools) or the abstract layer of a…
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answers207
viewsA: Problems in the return of a JSONP
Usa contentType: "text/plain",. var url = 'http://testejn.hospedagemdesites.ws/api/bairros/16'; $.ajax({ type: 'GET', url: url, async: false, contentType: "text/plain", dataType: 'jsonp', success:…
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answers296
viewsA: How to run "setInterval" without initial delay?
You can do a function to the part that returns itself, and when it is executed the first time it leaves itself as argument in setInterval. $(function () { var $latestData = $('#latestData'); // para…
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answer558
viewsA: recover data from JSON file
In case you want to get the translated texts you have to use AJAX. You can also do this on the server, but assuming you do it with Javascript you can use $.getJSON. Note that AJAX ($.getJSON) is…
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answer283
viewsA: Calling a Setinterval variable
You can’t stop and start one over setInterval. What you can do is: restart if no data needs to be re-used simulate pause return route from within the function First case: Sets the function outside…
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answer469
viewsA: How to change this JSON object?
Looking at the documentation of .map() It seems to me you can do so in Cakephp: $collection = new Collection($rows); $new = $collection->map(function ($value, $key) { return $value["Produto"];…
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answers801
viewsA: Taking text from different inputs
As you noticed, you also had a syntax error console.log here console.log(dtHora+","+local+",",+local_outro+"," ^^ There are better ways to write this and avoid these kinds of problems. So when…
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answer434
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answer65
viewsA: Mark checkbox 'brother' with jQuery
to refer to the next element you can use .next() to find the tr common/closest advice .Closest('tr') In your code I believe you can withdraw the condition if jQuery does not fail if it does not find…
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answer78
viewsA: How do I hide the container while uploading an image?
This effect you describe is called flash of unstyled content (FOUC), and the only way to avoid it is to have the default mode (ie by default) with CSS rules. Gives a CSS class that hides everything…
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answers17172
viewsA: How to pick up content within a string up to a "bar/" character
You can break the string by / using the explode() and then just use the first part like this: $partes = explode("/", $link); echo $partes[0]; // dá 13542345 Example: https://ideone.com/oAnXfR…
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answer115
viewsA: Filter the database loaded variable in javascript
The answer is yes. It depends a little on how you have the data but the function .filter() works with Arrays. If you have an array everything ok, otherwise you have to use…
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answers2247
viewsA: Exchange of content between pages with Javascript
This is possible with Javascript. You have two alternatives: go through the URL store in the localStorage HTML example Assuming the content you want to pass is this: <p id="comentario">Hoje…
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answer274
viewsA: How to recover the value of multiple dropdownlists (only filled)
I think you want to use the .filter() whose function is to reduce an array to the elements that serve a given condition. Your code could be like this: $("div.container-fluid").on("change",…
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answer263
viewsA: Enable field by selecting "Type"
You can have an event receiver in jQuery that detects whether the select has changed and for the value 60. Place or remove the disabled. It would be something like that: var inputs =…
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answer939
viewsA: Star Rating - javascript
Here is a suggestion: $(function(){ var estrelas = $('.star'); var escolhida = 0; function repaint(e){ var indice = $(this).index() + 1; if (e.type == 'click') escolhida = indice;…
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answers466
viewsA: How to detect if an element is accompanied by text with jQuery?
There are several conditions that need to be checked. The way I think is most right is to go through all the childNodes and check how many there are that are not empty. At the same time check if at…
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answer165
viewsA: Calling a tab (javascript) through another page
I’m not quite sure how wordpress interprets this but tests like this: Use in the URL which tab you want to open. The same way you use OnClick="MyFunction('myDiv1'); you can use a URL that has a…
javascriptanswered Sergio 133,294 -
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answers7859
viewsA: Take ID value and place inside the Hidden field
Just do it the same way, using the ID of an input you create, and using .value instead of .innerHTML: function gravar(id, val){ var valor = " USD " + val.toFixed(2);…
javascriptanswered Sergio 133,294 -
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answers197
viewsA: What is the function of this 'and' that is passed as a parameter?
When you use the jQuery API to $(".fotos").each this method accepts a function as argument. This function is also called iterator, that is the function that will be called and run for each of the…
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answer61
viewsA: When using AJAX, can I upload content without being around the form tag?
You can send AJAX as it suits you best. What is important is the data you pass and how you start AJAX. The data you put here: data: { valor1: $("[name='valor1']").val(), valor2:…
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answers3190
viewsA: how to make an event using the enter key?
You can use a delegate event. Delegate in the form but check to make sure you’re sure of what’s going to happen and what element you’re in. For example: $('#idDaMinhaForm').on('keyup', function(e){…
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answer56
viewsA: Round result in script
In your code total is a certain element? then you can’t do total.toFixed(2). How much you can do total.value = total.value.toFixed(2) But the best thing would be to do before you write in the DOM:…
javascriptanswered Sergio 133,294 -
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answer3520
viewsA: two functions within the onchange
The best way would be to use .addEventListener thus el.addEventListener('change', soma); el.addEventListener('change', alterar); Another option would be to pass a function that calls both:…
javascriptanswered Sergio 133,294 -
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answers7184
viewsA: How to set a token in the header?
You need to create a password and insert a middleware that checks and then make the http request with that token somewhere. On the server side: There’s a good example at this link with the main…
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answer2621
viewsA: How to decrease the spaces between the edges of a table in html?
You can change that with border-Collapse thus: table { border-collapse:collapse }; put it in your CSS file or inside that page like this: <style> table { border-collapse:collapse };…
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answers586
viewsA: Error trying to use isset in Javascript
In Javascript does not exist isset(). In PHP the isset() has two features: whether a variable is declared verify that its value is not null To verify that the variable is declared in Javascript you…
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answers53
viewsA: Error of Javascript Code
Notice when you use document.getElementById("data") That in itself doesn’t give you the value of input. You have to get the property .value to know the value. Then, since you want to use the…
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answer36
viewsA: Know where click comes from when you have multiple options
Inside this Event Handler you can use the this. The this is the delegated element. To find out if a given element has a class you can use the el.classList. Take a look here…
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viewsA: Retrieve the input from a class array with javascript
You were almost there. Just need to create a new scope for this i be memorized. You can use it like this: function message(i) { return function () { if (i == 0) { alert("Clicado 1!"); } else if (i…
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answers3287
viewsA: Fill a text field and display the same text in another field
This is more or less simple to do. You need to add an event headset to run a function when the event keyup is called. Then you pass the value of the input into the div, or other element that you…
javascriptanswered Sergio 133,294 -
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answers4643
viewsA: How to remove characters from a certain point with Jquery?
You can separate this string by the character you want and then use only the second part. For example: var marca = 'smartphones?marca=3'.split('?')[1]; console.log(marca); // marca=3 But what you…
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answer125
viewsA: How to pass arguments dynamically to a new call?
In Soen there is a interesting answer with this solution: function construtor(Construtor) { return new (Construtor.bind.apply(Construtor, arguments)); } Basically a function that: changes…
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answers5337
viewsA: How to filter data from a JSON with JS?
Once you create the table from this JSON the best is to cache these DOM elements (<tr>) and associate with your initial object so you can work with them later. That is, if you add to each of…
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answer200
viewsA: When and why to use window before functions?
Javascript native functions (from the Browser) are part of the Object window and are global. This is the same as saying that the properties of window are accessible in the global scope. That is,…
javascriptanswered Sergio 133,294 -
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answer388
viewsA: Change table with Javascript
You need two things in my eyes: how to tell the page which round to start go get that round and show it To tell the page which round to show you can use a querystring. For example:…
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answers1222
viewsA: Pass input value to another page
When we send a form to PHP (to the server in general) what is passed are elements like input, textarea, select. PHP receives an associative array where the keys are the attribute values name and the…
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answer1429
viewsQ: How to use the Node Passport.js to login against the database
How to use Passport.js to control access using the express.js database and middleware. How to do login logic and how to know that the session is already authorized when the user has already logged…
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answer1429
viewsA: How to use the Node Passport.js to login against the database
The Passport integrates well in the middleware of the express and has asynchronous methods for checking user/pass authenticity. In my use setup Node-mysql and check with username and password…
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answer335
viewsA: Get the most selected radio input with Javascript
You can do it this way: var inputs = document.querySelectorAll('input'); var button = document.querySelector('button'); button.addEventListener('click', verificar); function verificar() { var…
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answer220
viewsA: Send form after user action
The problem here is that the user confirms asynchronous with that validation that is running, so you have to change the logic that makes the formCreate.submit(); to be run after this user…
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answers5288
viewsA: Problem with Javascript Image Exchange for User Interaction
The logic you lack is that when the bulb breaks it no longer makes sense to use the mousemove. In fact mousemove is the wrong event for it because it shoots too many times, you just need to know…
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answers1363
viewsA: Detect when input value is changed via js
This may be possible in the future. A new method is foreseen that can solve this problem, the Object.(), promised for ES7. If you go forward you can pass an object to the method and a callback that…
javascriptanswered Sergio 133,294 -
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answers651
viewsA: Get the correct Index without duplicating the Select Option
Uses the .selectedIndex which does just that: chooses the index of option selected, assigning the desired number to that property. Note that the index starts at 0, then you can just use:…
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answer534
viewsA: Multiple events in Jquery selector
The documentation of .on() says: Syntax: .on( events[, selector] [, data], callback ) and the description of events says: One or more space-separated Event types that is to say: one or more event…
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answer1923
viewsA: Place real-time punctuation in javascript
You can join a new widget in HTML: <div id="pontuacao"></div> and then update via Javascript with: var infoPontos = document.getElementById('pontuacao'); function pontuou() {…