I will look at the way Superfish identifies the menu. Most probably you run for loop in that array. the 3rd button changes color to green and not the second one. Not sure what's slowing things down here; I'm not seeing any issues related to slowness in the Superfish queue. The download time is about the same before and after aggregation because the Javascript files are cached. It doesn’t stop the whole loop. test -f /tmp/stop-my-script to only loop while the file /tmp/stop-my-script does not exist. This is where callbacks come in. The for..in loop provides a simpler way to iterate through the properties of an object. You can witness the delay of 5 seconds to get to the “Done” status in the console. Let’s assume that we have a for loop that prints 0 to 10 at random intervals (0 to 6 seconds). Try any page at http://petermoulding.com/. The second part of a for statement is a condition. Second: Okay, we’ve seen in that out-of-flow AJAX example how a setTimeout-loop doesn’t act on a strict schedule, but gives even slow tasks a breather, whereas setInterval is a relentless bitch. Input number of terms : 10 Expected Output: The odd numbers are :1 3 5 7 9 11 13 15 17 19 The Sum of odd Natural Number upto 10 terms : 100 Click me to see the solution. The setTimeout above schedules the next call right at the end of the current one (*).. The second button is red all the time, now the 3rd button works perfectly. This will crash your browser. Ask Question Asked 7 years, 11 months ago. theLoop (i); } }, 3000); }) (10); First of all, we’re using a self-invoking function. i.e. The first parameter is a function to be executed. Note: If you are using a variable with the condition, initialize it before the loop, and increment it within the loop. Example Try the following example. then (() => { ... which we will animate something, stop the execution for 2 seconds using sleep, and then repeat this process using a for loop for 10 … Pages are returning with a 500 Service unavailable server error. A timer that would change questions in survey every 30 seconds Python: function + for loop HELP How to update session page view count to MYSQL table every 10 seconds Note how I wrote about 5 seconds, and not 5 seconds. Firefox times out the Javascript at 10 seconds and produces a message about a script taking too long or produces a message about the web site not available if the Javascript processing runs for long enough to make the page hit 20 seconds. There is no 500 Service unavailable server error and "The website encountered an unexpected error. Here in the example, we are going to alert a message every 4 seconds. The last line calls the function theLoop, and passes it the value 10 for i. Here I will explain how to call a JavaScript function for every 5 seconds or run / execute JavaScript function at regular intervals of time. For the first ten elements, we need to add a zero to the front of the loop variable for their corresponding element values since the first 10 seconds (0-9) of a digital clock are displayed that way. You need to declare the delay in milliseconds. Checking "Aggregate JavaScript files" under Administration - Configuration - Development will reduce the number of connections your browser needs to make to the server. Let's write a wait function: The duplicate Superfish problem also disappeared. Firefox 5, and I think 4, shows a rotating download symbol that is grey when waiting for a reply then orange during the replay download. Definition and Usage. What browser are you using? But for the element indices themselves, we only need to use the value of the loop variable. The orange frozen bit is the Javascript processing after the download and does not change with aggregation. Now if you want to run your JavaScript code every n seconds then you can use setInterval () method. Let’s have a look at how this works with in-the-flow actions: The setInterval case: I reported the duplicate inline Javascript in http://drupal.org/node/1241188 and implemented a quick workaround in the same issue. So, the thread could theoretically go through only say 6 sleeps of 1 second each, but in the "outside real world" 10 seconds have already passed. The for/of loop has the following syntax: for (variable of iterable) { // code block to be executed} variable - For every iteration the value of the next property is assigned to the variable. Top Drupal contributor Acquia would like to thank their partners for their contributions to Drupal. Instead of executing first, second, and third at the top-level of execution, you will pass the third function as an argument to second.The second function will execute the callback after the asynchronous action has completed. JS HOME JS Introduction JS Where To JS Output JS Statements JS Syntax JS Comments JS Variables JS Operators JS Arithmetic JS Assignment JS Data Types JS Functions JS Objects JS Events JS Strings JS String Methods JS Numbers JS Number Methods JS Arrays JS Array Methods JS Array Sort JS Array Iteration JS Dates JS Date Formats JS Date Get Methods JS Date Set Methods JS Math JS Random … There are different ways to loop over arrays in JavaScript, but it can be difficult choosing the right one. However, JS has setTimeout () function, which can delay an action. The easiest way to implement a 1 second delay, of course, is WSH's WScript.Sleep 1000 (delay in milliseconds). I also switched off the advertising block because that introduced a small variable delay. Unfortunately, it's because timers work in JavaScript, and in general, event loops. But depending the code inside the loop, the time differs. The delay is 10 seconds or more when I have a superfish menu active, 1 or 2 seconds when I do not have a superfish menu active, and nothing when I switch back to Garland. The code has a for loop that will take the string variable and print each character with a delay of 1 seconds. I switched to Fusion because some of the other themes had minor problems when used as a base theme. Here I have created a small script which will run for 5 minutes, and will run a command every 10 seconds. It means that if you specify duration to be, say, 1 second, JavaScript does not guarantee that it will start running the code after the sleep exactly after 1 second. Switching on and shutting down Apache made no difference. Get Latest articles in your inbox for free. Step 2 : Calculate Remaining Time First we calculate the time remaining by subtracting the deadline by current date and time then we calculate the number of days,hours,minutes and seconds.The Math.floor() function is used to return the largest integer less … There was no difference based on entries in the hosts file. Sounds good - if you come up with anything, please set the issue back to active! Continue to the next iteration. I’m totally confuse. Infrastructure management for Drupal.org provided by. 1.4.4 timed out frequently because it was running over 10 seconds. So the first one is blocked, and the second one is not. Definition and Usage. The second parameter indicates the number of milliseconds before execution. Here in this post, I’ll show you a simple example on how to refresh or reload a web page every 10 Seconds using the JavaScript setInterval() method. ... ("Sleep function will wait for 10 seconds and then it will print 'Done'"); sleep (5000). JavaScript Array Loops. Next, the setTimeout function will call the code inside after 3 seconds have passed. I have 38 buttons to set to work this way. It means that if you specify duration to be, say, 1 second, JavaScript does not guarantee that it will start running the code after the sleep exactly after 1 second. So we … This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true. Sometimes you want your function to pause execution for a fixed amount of seconds or milliseconds. Personal website of Tonny Garić—a software engineer, based in Nijmegen, The Netherlands. For example, the glide secs to x: y: block will continue to run even if the condition is met true because the loop ... [seconds v] to [0] //enter amount of time to repeat for repeat until <(seconds) = … The site is upgraded to Drupal 7.7 with whatever jQuery is in Drupal 7.7. The setTimeout() method calls a function or evaluates an expression after a specified number of milliseconds. Still happens with alpha 2. There are a couple of hundred menu options when they are all expanded for Superfish. if (--i) {. the 3rd button changes color to green and not the second one. The loop will not wait for the timer to complete. Please try again later." For example, in live online conversation or messaging system it needs to send AJAX request in every few seconds to check if there are any new message has been sent from the sender or not. A strong note to put out there: the above code does not guarantee a perfect sleep. Technically, this may not work if you have wait blocks or other blocks that take up time. The nested setTimeout is a more flexible method than setInterval.This way the next call may be scheduled differently, depending on the results of the current one. A for loop repeats until a specified condition evaluates to false. The window setInterval method calls a JavaScript function or evaluates an expression at a declared interval. This will be more clear after leaning objects in JavaScript. © 2015 Aspdotnet-Suresh.com. The For/Of Loop. Hi peterx, I'm not seeing 10 second delays, but it's not snappy, either. The initializing expression initialExpression, if any, is executed. The orange rotating symbol freezes when the javascript is processing. I have a subtheme of Fusion that is Fusion starter theme with some CSS colours changed. A fast modern desktop processor would process the Javascript twice or three times as fast, giving you 3 seconds. This expression usually initializes one or more loop counters, but the syntax allows an expression of any degree of complexity. However, JavaScript absolutely guarantees that the piece of code after the sleep will never execute before the specified time. JavaScript Array Loops. As long as the condition is true, the loop will continue. The html, body, head, etc tags along with all of the script tags are generated to display the error. How odd. Active 7 years, 2 months ago. The setTimeout above schedules the next call right at the end of the current one (*).. The third part of a for statement somehow changes the counting variable. The most common way … This tutorial is designed for you to … When a page is loaded, the page finishes loading then Firefox locks up for 10 seconds in a Javascript loop. The combination “infinite loop + break as needed” is great for situations when a loop’s condition must be checked not in the beginning or end of the loop, but in the middle or even in several places of its body. Firefox javascript processing uses only one processor of a multiprocessor chip and is entirely dependent on the clock speed of the one processor. We need to modify it using promises to print sequentially 0 to 10. aspdotnet-suresh offers C#.net articles and tutorials,csharp dot net,asp.net articles and tutorials,VB.NET Articles,Gridview articles,code examples of asp.net 2.0 /3.5,AJAX,SQL Server Articles,examples of .net technologies. It's FREE! Here, it will be 1000, as you want to update the timer every second (1 second = 1000 milliseconds). The pattern like : * ** *** **** Click me to see the solution After approximately 10 seconds a message is then displayed. function with two parameters called, In ( Fusion was easier to set up but adds 10 seconds to every page load including cached anonymous pages. Alternatively, if you know roughly how long the loop body will take, run it a few hundred times, say, and do the time check in an outer loop. Go to the editor. The JavaScript for loop is similar to the Java and C for loop. Fusion creates a Javascript loop at page startup. The task is to get the third function to always delay execution until after the asynchronous action in the second function has completed. The content is copyrighted to Suresh Dasari and may not be reproduced on other websites without permission from the owner. Set up DevTools. import time my_message = "Guru99" for i in my_message: print(i) time.sleep(1) Output: G u r u 9 9 Using asyncio.sleep function available from (Python 3.4 or higher) If you want it be displayed for 3 seconds, then you can use “3000” instead of “5000”. My processor is 1.5 GHz and takes 10 or 11 seconds for the Superfish menu. You can use Ctrl-C to abort it, or use any other condition instead of true, e.g. VBScript While Loop. That said, I noticed a few things that might impact performance: I am using Firefox 5 in Linux on a netbook in the middle of a tropical jungle. 1.6.2 does not time out because it is a fraction under the default Firefox 10 second timeout. Thanks alot in advance However, JS has setTimeout() function, which can delay an action. Can you maybe use the javascript console to see what's taking so long (I'm not sure if this is possible, but it's potentially worth attempting)? Tip: 1000 ms = 1 second. I switched Javascript aggregation off when testing jQuery 1.6.6 and have switched it on again. Jquery has had similar problems before with some versions. Write a program in C to display the pattern like right angle triangle using an asterisk. I have 38 buttons to set to work this way. I switched the site to use Zen as the base theme and all the problems disappeared in Firefox 3. Maybe aquariumtap will have a good idea. There are different ways to loop over arrays in JavaScript, but it can be difficult choosing the right one. As soon as the condition is evaluated as false, the loop will exit. There was no delay with Superfish menus in Drupal 6 with a Genisis based theme or any of the ten odd other themes I tested with Superfish. I found one of the errors on a computer using Firefox 3. window.open. Its first argument is the function to be executed and the second argument is the delay in-between executions. For example, if 0 takes 6 seconds to print and 1 takes two seconds to print, then 1 should wait for 0 to print and so on. Step 6 takes place once the 10 seconds of the setTimeout found in the Web API have passed (and the JavaScript motorcycle’s execution stack is empty). I will test with the Javascript stuff in Firebug when I return to the city next week. Here setTimeout() is a built-in JavaScript function which can be used to execute another function after a given time interval. Would it be caused by the use of a subtheme? The error occurs in several versions of Firefox, including Firefox 5, and there are people reporting similar problems in other browsers. I stopped watching the crocodiles long enough to install Firebug. The continue directive is a “lighter version” of break. @aquariumtap, I could not reproduce the error on my computers using Firefox 5. Many programming languages have a sleep function that will delay a program’s execution for a given number of seconds. Hint: Use for loop to … The nested setTimeout is a more flexible method than setInterval.This way the next call may be scheduled differently, depending on the results of the current one. Do you know the cause? In this tutorial, we are going to learn about how to loop through array of elements in a react. The window.setTimeout() method can be written without the window prefix.. Like i want user to show signup 15 spots left only and countdown slowly decreases its no like 14 after 8 seconds then 13 spots left after 8 or 10 seconds like that . Back in the dark ages, I remember that we used the `cron` program to automate recurring executions of some PHP thing. For loop. So, in our working example, when the code actually runs, 10 will get spit out to the console 10 times because by the time the code runs that is the value that i will have. It's not just superfish that's duplicated. 2. Dim objIE ' Create an IE object Set objIE = CreateObject( "InternetExplorer.Application" ) objIE.Navigate "about:blank" ' Wait till IE is ready Do While objIE.Busy WScript.Sleep 1000 Loop JavaScript do not have a function like pause or wait in other programming languages. The setInterval() method calls a function or evaluates an expression at specified intervals (in milliseconds). If you execute code like setTimeout (fn, 0) but then immediately after run a loop that counts from 1 to 10 billion, your callback will be executed after a few seconds. Never execute before the loop will end call the code inside after 3 seconds answers: i make. Calls the function theLoop, and loop parameter is a classic JavaScript for loop that contain timers, like calls. 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