Posts by Sergio • 133,294 points
2,786 posts
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2
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answer141
viewsA: Make DIV Scrollbar follow li element of the list
You need in this case to subtract the position of the #playlist using scrollTop: $(proximo).offset().top - $('#playlist').offset().top. I also leave a suggestion to compress the code:…
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3
votes3
answers3662
viewsA: Find quotes with blanks with Regex
Here is a suggestion, which works in the text I tried: var texto = '" Jornal do Brasil". Paris é considerada a "Cidade Luz " Gosto das cores "azul" e "preto".'; var textoLimpo =…
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5
votes2
answers2155
viewsA: Header running over Echo
If you want the user to read then you have to redirect on the client side as well. Once Alert stops the script, the next javascript line will be run when the window closes using for example the…
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2
votes3
answers65
viewsA: Go to jQuery
Get a hint with CSS only: .bloco1 > * { opacity: 1; transition: opacity 1s; } .bloco1:hover > p, .bloco1:hover > img { opacity: 0; } .bloco1:hover > .conteudoBloco1 { opacity: 1; } You…
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6
votes1
answer41
viewsA: Get the document by an iframe
I suggest using a library for that. With jQuery it would be something like: function getFrameContents(iframe){ return $(iframe).contents(); } In the pure javascript version you have to take into…
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6
votes2
answers431
viewsA: Alert by email such a day
Yes the best way is cron Jobs. It is unclear where you get this date from but basically you will have to have a function to be called by cron job, which minimalistically can be so: function…
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votes3
answers4201
viewsA: Fire an event using pure Javascript
I needed something similar, but for mousewheel a while back and I made this code: function createFakeMouseEvent(event, elemento) { var evt; if (!(window.mozInnerScreenX == null)) { // Firefox evt =…
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votes3
answers812
viewsA: how to prevent multiple email submissions
I assume you are sending via ajax, otherwise the problem would not arise. Here what you need is a flag (flag) that prevents Ubmit from working until ajax returns. It has already been discussed…
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3
votes1
answer386
viewsA: Insert result from script or script code into a div
The answer to your problem and the answer to your question are, in my view, slightly different. To load a script to the page needs a string with the content of the script, then you have to create a…
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35
votes1
answer85227
viewsA: Javascript generating float with multiple decimals
Yes, this is a known behavior in javascript and already discussed in other questions. Suggestion: var conta = (123*1.23)+(312*3.26); var arredondado = parseFloat(conta.toFixed(2));…
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5
votes2
answers12072
viewsA: Take the value of an input with javascript
Your variable dataVal seems to me to be in the global scope because I do not see it being declared. It would be better to avoid that. Your problem here is that dataVal =…
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2
votes1
answer49
viewsA: Global object for project
Creating an object with all the methods you need is a very good idea. It’s called creating a name space. This avoids conflicts in the case of declaring variables or functions with names that may…
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7
votes1
answer518
viewsA: Can we use all versions of css on our website?
Different CSS versions are retro compatible with each other. This means that code in CSS2 and CSS3 may be present on the same page, or stylesheet. Which is not compatible, which is the difference is…
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4
votes1
answer37
viewsA: Function running direct
You’re missing a clasp to verify the result of f_veri_data(tx_dt_gtia);, or is the return of f_veri_data() is not being used. Do so: function f_veri_dados() { // existem outros dados // Data da…
javascriptanswered Sergio 133,294 -
1
votes2
answers4665
viewsA: How to convert milliseconds to date
Within that .map() have to iterate all array objects and change/overwrite each date. To traverse the objects you can use a cycle for. Then you have to go to the right property and write it over…
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1
votes3
answers1380
viewsA: Switch page time transition
Remember that the .load() is an ajax call and runs asynchronous. That is, when you do the .load() the code keeps running without waiting for the contents that the load has fetched. The load has…
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2
votes1
answer96
viewsA: Jquery Event.target does not work on IE8
jQuery (in versions 1.x) works in the same way on IE8 and other more modern browsers. This is a great advantage of using a library. That said, your problem is in the code. Remove find("img") and…
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votes2
answers794
viewsA: Changing an element with jquery
To replace elements with jQuery you can use .replaceWith(). The syntax is $(elementosOriginais).replaceWidth(<novo conteudo>); So in the function where listening to the click can do:…
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5
votes4
answers723
viewsA: How to create a link that when clicked is added a CSS property in a div?
The cleanest way to do this is with CSS class. Set a CSS class, example: .aberto { margin-bottom:20px; } Then when the link is clicked you can add this class to the div.zopim. To add and remove, it…
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votes3
answers6753
viewsA: Validation of select
You can use the .val() also or use pure javascript .value Take a look at this example that makes "false" Lert when choosing the first option and "true" in the others: $('#sexo').on('change',…
javascriptanswered Sergio 133,294 -
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answers2946
viewsA: Doubt with Javascript Replace
There is one more suggestion besides the good answer from @bfavaretto. Since it has relatively small numbers you can use parseFloat to convert to Number. So just change the , for parseFloat to be…
javascriptanswered Sergio 133,294 -
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answers729
viewsA: Login and password submit!
I see two problems here. One is that you still have Event Handler active when you want to do Submit in the script. The Handler Event $("#fazerloginform").submit(function() { is to be called when you…
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1
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answer134
viewsA: Limit range for display of tooltip on area chart with Highcharts
I have been looking and I have not found a direct solution. Apparently this is not possible as an "option", but it can be done. Reading these two answers on Soen [(1) (2)] can do this using series…
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answers367
viewsA: jQuery - Typical duplicate use situation of the same code. How to proceed?
I leave another answer with an approach not mentioned in the other answers. But I think that using classes (as Andrey suggested) to group elements is better solved and more flexible/expandable than…
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3
votes2
answers2234
viewsA: Check variables in jQuery?
If you want to do a "simple" validation, ie just check if the input is empty or can’t do so: if(!$('form').serialize().match(/=&|=$/)) { // correr código Example: http://jsfiddle.net/xr5z2rnp/1/…
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answers143
viewsA: JQuery problem of a MENU with two <ul> ’s
My suggestion is to do this only with CSS. ul ul { display: none; } ul > li:hover ul { display: block; } Example: http://jsfiddle.net/n6ty5jut/ I could even do with CSS animation: ul ul {…
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votes2
answers1339
viewsA: Hide and Show all li decendentes of a ul - Jquery
Test like this: <script> $(document).ready(function(){ $('h4').each(function(index){ $(this).click(function(){ $(this).parent().find('ul').eq(index).find('li').toggle(); }); }); });…
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answer500
viewsA: How to check variables with jQuery so that they are not sent empty?
Sometimes validation is done on the client side and the server side. There are always several ways to do this. To do a customer side check you will need to search for element.value, element.checked…
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10
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answers25883
viewsA: How to remove backslashes ( ) and quotes (") from a string?
To test if a string has \ or " can do so: /[\\"]/g.test('Olá\ bom dia'); // dá true /[\\"]/g.test('Olá "bom dia"'); // dá true /[\\"]/g.test('Olá bom dia'); // dá false To test you can use this on…
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votes2
answers146
viewsA: How to fade() at different times in an img and id
If the image is inside the div you want to show, then you have to "hide" the image first. Or do it in HTML with style="display: none;" or in javascript. If you hide in javascript the code would be:…
javascriptanswered Sergio 133,294 -
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answer855
viewsA: Uncaught Referenceerror Angular Is Not Defined
I think your problem is of asynchrony. You need to load the Angular library within the <head> because only then is it loaded before the page loads and the rest of javascript is run. What is…
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answer654
viewsA: Put active link with javascript?
Inside this Handler Event: $(this).on('click', 'a', function(e){ can make a search to know the index of this anchor (actually li father). If you know this you can know if you are one of those first…
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votes3
answers129
viewsA: Simplify mouseenter and mouseleave of multiple images
You can do this only with CSS: .navHeader:hover img { opacity: 0.5; } .navHeader img:hover { opacity: 1; } Example: http://jsfiddle.net/qcT89/ If you want you can also add transitions to smooth with…
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answer2179
viewsA: Ajax is returning me an array and now, how to separate?
If you already have an array coming in after JSON.parse, you can use foreach to mount that table. If you want to do it with Divs here is a hint: var campos = ['arquivo', 'idCliente', 'titulo',…
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answer675
viewsA: How to load an array and split its positions by special character
One possibility is to go to the DOM and search for these values and create an array with them. Using JSON.stringify you can pass to the server side in JSON format and then the commas within each…
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votes3
answers9448
viewsA: Javascript use of Eval(): what are the pros and cons?
I also have to answer because val() not as bad as many people think, it depends on how and where you use it. Driving a car is dangerous if you don’t know how to do it. For those who do not master…
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answer4635
viewsA: How to recover query result variables via Ajax in PHP?
As I referred to in another question needs to use the echo. To pass several variables you can make an array with them and use the echocombined with json_encode(). // Variaveis $nome =…
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11
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answers2648
viewsA: Automatic calculation in text box
Yes this is possible. The easiest way is by using the eval();. HTML <input type="text" id="calculator" /> <div id="result"></div> javascript var input =…
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6
votes2
answers836
viewsA: check whether GET exists or not
You can use the in_array() PHP, which checks whether this string exists in a given array. Can put in_array($_GET['pg'], $nomes) within the if() to check if there is an array member equal to the…
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1
votes3
answers451
viewsA: PHP execution via Ajax jQuery
The function isset() of PHP returns true or false. This means that this comparison isset($_POST['send']) == "buUserBloqueia" is always false for isset($_POST['send']) will not appreciate the…
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3
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answers8678
viewsA: Receive responses from jQuery’s Ajax request
To send data from a PHP script back to the client side you have to use echo. echo <conteudo>; In your case you can use it like this in your PHP: if($Insert) $resposta = "O usuário foi inserido…
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1
votes1
answer1645
viewsA: Validating text box
To not accept blank spaces, that pass on the line I suggested above can use /^\s*$/.test(input.value);. This regular expression will look for blanks 1 or more times and test the input to see if it…
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4
votes3
answers152
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answers74116
viewsA: Removing a specific element in an array
If you know the position in the array can use the unset(); directly unset($input[0]); To be clearer: $input = array("item 2", "item 4"); var_dump($input); unset($input[0]); var_dump($input); gives:…
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votes1
answer599
viewsA: Bootstrap Popover Trigger and html option together do not work
The focus makes more sense for inputs, not for elements. My suggestion is to use both hover click. $(".popoverr").popover({ html: true, trigger: 'click hover' }); http://jsfiddle.net/Rf2Dr/1/…
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answers144
viewsA: Javascript object return syntax
The syntax is: Return [ Expression ]; And it says "Expression": To Expression return. If omitted, Undefined will be the return. Source MDN This implies that the expression, variable, object, etc are…
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answers2611
viewsA: What are Javascript "mixins"?
Mixins is a very common term in object-oriented programming languages, in javascript the Mootools library being perhaps the best reference. The basic idea behind the creation and use of mixins is…
javascriptanswered Sergio 133,294 -
189
votes4
answers72185
viewsA: What is a callback?
Callback is a function that is used as "callback". It is typically passed as an argument from another function and/or call when an event happens, or when a piece of code receives a response that it…
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answer519
viewsA: Remove Scroll Fixed from sidebar
If you want to do the sidebar follow the limit of footer You need to know a few more parameters/measures to do some math. I leave an example below. Ideally it should have out of function everything…
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answers17274
viewsA: Click on a button via pure javascript
To click "programmatically" on a button you have to call the onclick of the element. You can do it like this: var botoes = document.querySelectorAll('button.tal_classe'); for (var i = 0; i <…
javascriptanswered Sergio 133,294