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  1. I read, with great interest, about using a button to show and hide text here. However, I have several blocks of text for which I would like a button to toggle show/hide but would prefer not to duplicate the same function several times. I would like to pass the div ID as a parameter so that multiple buttons may use the same function to show/hide the text associated with each button. I tried the following code but it does not work. <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <style> #myDIV {
  2. Hi! Im trying to add a function that gives the text in my code a random background color (either yellow, red or green). I want this random color change to happen when I press the button. Can anyone help me with this? my code sofar is: <!DOCTYPE html> <html> <body> <p id="output_paragraph">Click the button to change the text in this paragraph.</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { document.getElementById("output_paragraph").innerHTML = "Hello World";
  3. Hello. I'd just like to enquire, what is the best way to encrypt and decrypt please? I've created a basic signup form, and I would like to encrypt the data before it's written to a database. Then when I come to create the log in screen, I would like to access the database, pull a record, then decrypt the email and password, to check it matches what the user has entered. Or is there an easier way? Thank You. ps. Also could I please just ask. I've created a function for something else. When I've finished with it, can I delete or destroy it? Than
  4. BACKGROUND I have created two functions both of which have been tested and function as expected -- so well, in fact, that one of them can be used to enhance the output of the other. The problem arises when I seek to call these functions with separate button alerts provided below in the order given. Both functions are defined in a jQuery ready statement. BUTTON ALERTS <script> var num = 5; </script> <button onclick="alert(num.annotate('sec'));">Alert!</button> <script> var sec_num = 59039; </script> <button onclick="alert(secTranslate(sec_nu
  5. Ok bare with me because I have no idea what this is actually called. If someone knows I will update the title. I am working on a site that will act as an out-of-game marketplace for in-game items. I want to ensure that the player is within the zone of the market in-game so I need an easy way to generate an array of valid coordinates the player could be within to access the market. Ideally i would like to run a function with a parameter specifying the radius of a square and another of the player's current geoID. Basic geometry would help if the geoID's were, in my mind, easier to predict.
  6. hey specialists, i spent 2 days on a small java-calulating script for my 7 year old son, to "play on the tablet" :-). At the moment he is not allowed to play games, so he can practice math a little bit... i don't use an app, because i like the "challange" and want to learn something too. thats why i startet to try coding. Now i cant go on, the check-button in my script doesn't do anything. My script shows tasks an Operators, but the entered solution is not going to be compared with the result. Can someone help me to find the error? Script in action is here: http://holland-
  7. Woocommerce took out the option for enabling a lightbox feature for your image gallery earlier this year. They have in their documentation to add code if you want to enable the gallery features but don’t actually say where. https://woocommerce.wordpress.com/2017/02/28/adding-support-for-woocommerce-2-7s-new-gallery-feature-to-your-theme/ This is a significant frontend change that can be broken down in to three separate new features; Image zoom / magnification Lightbox Slider To enable each of these features in your theme you must declare support using
  8. So I am working on a simple client database type program. I have a clients array that stores new clients that all have a first name, last name, phone number, etc... I also want the user to be able to add notes about their clients' family. So, one of the parameters of the client function is an array called familyNotes. Here is the code for this: function client(firstName, lastName, phoneNumber, address, hireDate, frequency, cost, entry, familyNotes) { this.firstName = firstName; this.lastName = lastName; this.phoneNumber = phoneNumber; this.address = address; this.hireDa
  9. I've got a function that create mesh when you click on another. On the click, 2 or 3 mesh are created and go to their positions. Know i would like to do the reverse function : when the mesh are deployed, and you click anoter time on the mesh, the previously created mesh go back and are removed from the scene. Here is my first function : function sortiSphere(element, obj) { var matStdParams = { roughness: 1, metalness: 0.8, color: element.group, emissive: element.group, emissiveIntensity: 0.5 }; var sphereMaterial2 = new TH
  10. Sorry people here I have asked this before, so its a bit embarassing to me. But .... I have the following question. Its about using a function inside an if condition. The thing is that when I make a function with 2 returns in this case $data and $alternative I receive them both back. I ask this for grasping how a function acts inside an if condition. So my question is: how does the php engine ‘reason’? Is the outcome of the return ONLY POSSIBLE if you return 1 value inside an if condition; so either true or false ? Example:
  11. Hi All, I'm looking for a solution in using a function. The function fetches data from a database. In a column multiple results are found. I want to have all the records outisde the function. Inside the function all records are shown, but outside only the last record. I thought I could use return array, but it only returns multiple variables and not multiple rows. Not sure if fetch() is the solution for arrays. example: <?php function test_func($val4) { global $val1; global $val2; global $val4; $servername = "host";
  12. Hi, here is a code. I want to make the .characteristics-quote to stay fixed when scrolling to the .characteristics-wrapper. But When the characteristics-wrapper class scrolling is finished the .characteristics-quote should be vanished. Can you please tell me how I can fix this ? Thank you in advance. <!DOCTYPE html> <html lang= "en-us"> <head> <meta charset= "utf-8"/> <title>About</title> <link rel= "stylesheet" type= "text/css" href= "font-awesome-4.7.0/css/font-awesome.min.css"/> <style type= "text/css"> body { margin: 0;
  13. Hi, I want to change the background image automatically every 5 second and the indicators should be green. I followed w3schools slideshow tutorial and created this slideshow. But it doesn't seem to work as expectation. Please tell me where I made the mistake. thank you in advance. <!DOCTYPE html> <html> <head> <style> body { margin: 0; padding: 0; } .header-slideshow-container { width: 100%; margin: 0; padding: 0; } .header-slide { display: block; width: 100%; height: 100%; margin: 0; padding: 0; } #header-slide1 { backgr
  14. Hi,I am developing my first website template. When I used this script in the internal script, it ran well. But when I added this script inside a file,the jsLint showed that there was almost 20 errors. Here I am sending the screen of the errors. Can you please help me to understand why these errors occurred and how can I resolve these? Here is the script: function openModalSearch() { 'use strict'; var modalSearch = document.getElementById("modal-search-container"); modalSearch.style.height = "100%"; } function closeMo
  15. var xmlhttp; var Staff, obj; var url = "staff.json"; function init() { xmlhttp = (window.XMLHttpRequest) ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP") ? new ActiveXObject("Msxml2.XMLHTTP") : null ; xmlhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { Staff = JSON.parse(this.responseText); var table = document.createElement("table"); document.body.appendChild(table); obj = Staff.Staff[0]; for (var y in obj) { var header_row = document.createElement("th"); var column = document.createElement
  16. Hi, I am facing problem to undestand the showSlides() function . Can you please explain this function to me . var slideIndex = 1; showSlides(slideIndex); function plusSlides(n) { showSlides(slideIndex += n); } function currentSlide(n) { showSlides(slideIndex = n); } function showSlides(n) { var i; var slides = document.getElementsByClassName("mySlides"); var dots = document.getElementsByClassName("dot"); if (n > slides.length) {slideIndex = 1} if (n < 1) {slideIndex = slides.length} for (i = 0; i < slides.length; i++) { slides[i].style.display = "none";
  17. Hello, I found a function called fnGetSibling on https://msdn.microsoft.com/en-us/library/ms533043(v=vs.85).aspx#navigate and I was hoping to understand what it does return and why. var oPrevious = fnGetSibling(); function fnGetSibling(){ var oParent=oNode.parentElement; var iLength=oParent.children.length; for(var i=0;i < iLength;i++){ if(oParent.children[i]==oNode){ return oParent.children[i - 1]; break; } } } I have three possible options: 1. Finds and returns a reference to all childs of a node of DOM Tree. 2. Finds and returns a ref
  18. Hello everybody, I've got a little problem that I cannot get working. Hope you experts here could help me out with this. I found this hamburger menu animation by Jonsuh: https://jonsuh.com/hamburgers That thing is really nice. Now I want to trigger the animation on hover instead of click. I'd like to hover another item (e.g. 'code') and trigger the animation. Hovering 'code' would start animation and leaving the item would transform hamburger back. I tried it with the mouseover/mouseout function.... but don't know how to get this working with hamburger. I'd really appreciat
  19. Hi guys! I have a little problem and it's that I get an error in a determined function where I call my connection and I don't know why. The errors are: 1) Notice: Undefined variable: conexionidiomas in C:\wamp64\www\idiomas\preguntas-frecuentes.php on line 10 2) Warning: mysqli_real_escape_string() expects parameter 1 to be mysqli, null given in C:\wamp64\www\idiomas\preguntas-frecuentes.php on line 11 This is what I have from "/Connections/conexionidiomas.php": # FileName="Connection_php_mysql.htm" # Type="MYSQL" # HTTP="true" $hostname_conexionidiomas = "p:localhost:3307"; $datab
  20. Hello & Thanks , I am learning from this example : http://www.w3schools.com/tags/tryit.asp?filename=tryhtml5_ev_onclick I want to put the .js in a separate file , <script src="skel-main-2.js"></script> instead of within the .html . Code is here : quick.js: www.liesandcowpies.com/testMe/Quickjs/quick.js (if needed) html: http://pastebin.com/EQUTDd4y js: pastebin.com/HXbrb86M I want to put the .js in a separate file , <script src="skel-main-2.js"></script> instead of within the .html . But when I run it , up comes
  21. Down here the code to call a function it works with list. I dont understand how list works, In my example list gives a survey of 2 arrays that are executed inside the function here is how I call the function: $row = list ($variable, $number) = my_function(); var_dump($row); the output is like this: I need the values separated but how can I list the second array (the one with the numbers) as single numbers outside an own function?
  22. Hello, while reading the tutorial about js i found this paragraph: According to Stack Overflow fullName is not a function, because the result depends on the state of the object and is not always the same. Maybe you need to correct this or be more precise with your definition of a function.
  23. j.silver

    Notice Error

    Dear all: I have the following php line of code: <?php $var2 = 5; ?> += : <?php $var2 += 4; echo var2; ?><br /> Because of the lack of the dollar sign before var2 following the echo, it spat out the following error: += : Notice: Use of undefined constant var2 - assumed 'var2' in C:xampphtdocsTutorialsPHPw3schoolsintegers.php on line 29var2 My understanding prior to this was that Notice means something bad in the code but it is not an error and would not stop the code from executing. But the code has not executed in this example. Since the code is not executing,
  24. I need make a calculation which allow know difference between two numbers. I can subtract the smallest of the larger, but this calculation is very limited, implies if a number is negative and the other positive. I want to know another way to do this. It is possible to do this calculation in JavaScript through the: modulo; function; (Others); Mainly: Another important thing which I want, is to calculate percentage difference through two differents numbers. To know the value resultant. I want to know all the possible ways to do this. Because I came across in an embarrassing
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