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2014/10/16 ¤W¤È 12:02:31
jquery Programming Glossary: closuresIf a DOM Element is removed, are its listeners also removed from memory? http://stackoverflow.com/questions/12528049/if-a-dom-element-is-removed-are-its-listeners-also-removed-from-memory to this rule are cases involving circular references closures and cross page leaks. So what about older versions of Internet..
Access outside variable in loop from Javascript closure http://stackoverflow.com/questions/1331769/access-outside-variable-in-loop-from-javascript-closure array this.items . How to solve javascript jquery loops closures share improve this question The problem you have here is..
Jquery: how to detect a textbox's content has changed http://stackoverflow.com/questions/1481152/jquery-how-to-detect-a-textboxs-content-has-changed code of the pressed key is a letter backspace delete Use closures to remember what was the text in the textbox before the key..
javascript - How to make this code work? [duplicate] http://stackoverflow.com/questions/16472577/javascript-how-to-make-this-code-work this myArray i '#box1' .append list javascript jquery closures share improve this question Edit I said I wasn't going to.. Where and is return function is scope of IIFE So closures have access to a function's scope after it returns. That scope.. null in strict mode . That's all there is to it. Honestly closures are tricky to get your head round at first but once you grasp..
how to store an array in jquery cookie? http://stackoverflow.com/questions/1959455/how-to-store-an-array-in-jquery-cookie direct access to the declared items array this is called closures see http www.jibbering.com faq faq_notes closures.html return.. called closures see http www.jibbering.com faq faq_notes closures.html return add function val Add to the items. items.push val..
Looping through Markers with Google Maps API v3 Problem http://stackoverflow.com/questions/2670356/looping-through-markers-with-google-maps-api-v3-problem to the last entry. You can solve it with even more closures using a function factory function makeInfoWindowEvent map infowindow.. be quite a tricky topic if you are not familiar with how closures work. You may to check out the following Mozilla article for.. fact this is why your program is failing. JavaScript has closures. This means that inner functions have access to the variables..
http://stackoverflow.com/questions/337878/var-self-this to do it It looks strange to me. javascript jquery scope closures share improve this question This question is not specific..
Assign click handlers in for loop http://stackoverflow.com/questions/4091765/assign-click-handlers-in-for-loop improve this question It's a common mistake to create closures in loops in Javascript. You need to have some sort of callback..
jQuery dollar sign ($) as function argument? http://stackoverflow.com/questions/4983150/jquery-dollar-sign-as-function-argument dollar sign as function argument I understand JavaScript closures and I've seen this done in native JS function all JS code here.. jQuery spice do function all JS code here jQuery jquery closures dollar sign share improve this question Its a way of mapping..
What are some empirical technical reasons not to use jQuery? [closed] http://stackoverflow.com/questions/5099949/what-are-some-empirical-technical-reasons-not-to-use-jquery languages garbage collection object oriented programming closures or pretty much everything that we now take for granted and today..
How to get all of the IDs with jQuery? http://stackoverflow.com/questions/827294/how-to-get-all-of-the-ids-with-jquery span .each function IDs.push this.id This is the beauty of closures . Note that while you were on the right track sighohwell and..
Multiple ajax calls at same time http://stackoverflow.com/questions/10150159/multiple-ajax-calls-at-same-time ajax jquery ajax share improve this question CLOSURES Closures are a little mind blowing at first. They are a feature of javaScript.. in the absence of language keywords Public and Private . Closures are made possible by inner functions' use of outer variables..
How to run a function in jquery http://stackoverflow.com/questions/1191833/how-to-run-a-function-in-jquery in the same scope as your are using it JavaScript uses Closures to determine scope . Now since functions in JavaScript behave..
start javascript code with $(function, etc http://stackoverflow.com/questions/12008843/start-javascript-code-with-function-etc the in peace... jQuery P.S. For a good understanding of Closures and Scope see JS101 A Brief Lesson on Scope . share improve..
http://stackoverflow.com/questions/1419731/jquery-framework-internals on which Javascript is based upon Lambdas inline functions Closures outer variables from outer scope accessible from inner functions..
http://stackoverflow.com/questions/2192348/closures-in-a-for-loop in a for loop Closures in a loop are causing me problems. I.. in a for loop Closures in a loop are causing me problems. I think I have to make another..
Looping through Markers with Google Maps API v3 Problem http://stackoverflow.com/questions/2670356/looping-through-markers-with-google-maps-api-v3-problem Mozilla article for a brief introduction Working with Closures UPDATE Further to the updated question you should consider the..
jQuery Closures, Loops and Events http://stackoverflow.com/questions/359467/jquery-closures-loops-and-events Closures Loops and Events I have a question similar to the one here..
What does function($) mean in javascript? http://stackoverflow.com/questions/7341265/what-does-function-mean-in-javascript without the function depending on a global level variable. Closures can also be created with it... But that's the same idea in this..
JavaScript Closures and Memory Leaks http://stackoverflow.com/questions/954252/javascript-closures-and-memory-leaks Closures and Memory Leaks I read in Jquery in Action that memory leaks..
If a DOM Element is removed, are its listeners also removed from memory? http://stackoverflow.com/questions/12528049/if-a-dom-element-is-removed-are-its-listeners-also-removed-from-memory the 'current' browsers do release the memory. A few exceptions to this rule are cases involving circular references closures and cross page leaks. So what about older versions of Internet Explorer Older versions of IE are known to have memory leak..
Access outside variable in loop from Javascript closure http://stackoverflow.com/questions/1331769/access-outside-variable-in-loop-from-javascript-closure the alerted item.id is always the id of the last item in the array this.items . How to solve javascript jquery loops closures share improve this question The problem you have here is that the variable item changes with each loop. When you are..
Jquery: how to detect a textbox's content has changed http://stackoverflow.com/questions/1481152/jquery-how-to-detect-a-textboxs-content-has-changed doing this using the keyup event Check explictly if the ascii code of the pressed key is a letter backspace delete Use closures to remember what was the text in the textbox before the key stroke and check whether this has changed. Both look kinda cumbersome...
javascript - How to make this code work? [duplicate] http://stackoverflow.com/questions/16472577/javascript-how-to-make-this-code-work this refers to A or B or C '#box2' .text new_info .call this myArray i '#box1' .append list javascript jquery closures share improve this question Edit I said I wasn't going to write your code for you... well I did this fiddle does exactly.. each other... Just to make things really simple to understand Where and is return function is scope of IIFE So closures have access to a function's scope after it returns. That scope has precedence when it comes to resolving an expression to.. . The last environment will either be the global object or null in strict mode . That's all there is to it. Honestly closures are tricky to get your head round at first but once you grasp what I tried to explain here they're great fun. Check this..
how to store an array in jquery cookie? http://stackoverflow.com/questions/1959455/how-to-store-an-array-in-jquery-cookie a object that we can use to access the array. while hiding direct access to the declared items array this is called closures see http www.jibbering.com faq faq_notes closures.html return add function val Add to the items. items.push val Save the.. hiding direct access to the declared items array this is called closures see http www.jibbering.com faq faq_notes closures.html return add function val Add to the items. items.push val Save the items to a cookie. EDIT Modified from linked answer..
Looping through Markers with Google Maps API v3 Problem http://stackoverflow.com/questions/2670356/looping-through-markers-with-google-maps-api-v3-problem loop has run its course and the x variable will be left pointing to the last entry. You can solve it with even more closures using a function factory function makeInfoWindowEvent map infowindow marker return function infowindow.open map marker .. makeInfoWindowEvent map infowindow x marker x This can be quite a tricky topic if you are not familiar with how closures work. You may to check out the following Mozilla article for a brief introduction Working with Closures UPDATE Further to.. implied global variables the_marker and infowindow and in fact this is why your program is failing. JavaScript has closures. This means that inner functions have access to the variables and parameters of the outer function. This is why you will..
http://stackoverflow.com/questions/337878/var-self-this would not work here It works but is that the best way to do it It looks strange to me. javascript jquery scope closures share improve this question This question is not specific to jQuery but specific to JavaScript in general. The core..
Assign click handlers in for loop http://stackoverflow.com/questions/4091765/assign-click-handlers-in-for-loop 20' . What am I doing wrong jquery jquery selectors share improve this question It's a common mistake to create closures in loops in Javascript. You need to have some sort of callback function like this function createCallback i return function..
jQuery dollar sign ($) as function argument? http://stackoverflow.com/questions/4983150/jquery-dollar-sign-as-function-argument dollar sign as function argument I understand JavaScript closures and I've seen this done in native JS function all JS code here But what does adding the jQuery spice do function all JS.. native JS function all JS code here But what does adding the jQuery spice do function all JS code here jQuery jquery closures dollar sign share improve this question Its a way of mapping jQuery to the in a way so that not all code in a page will..
What are some empirical technical reasons not to use jQuery? [closed] http://stackoverflow.com/questions/5099949/what-are-some-empirical-technical-reasons-not-to-use-jquery assemblers compilers structured programming higher level languages garbage collection object oriented programming closures or pretty much everything that we now take for granted and today it's AJAX libraries. Maybe some day no one will remember..
How to get all of the IDs with jQuery? http://stackoverflow.com/questions/827294/how-to-get-all-of-the-ids-with-jquery with in the scope or can I Yes you can var IDs #mydiv .find span .each function IDs.push this.id This is the beauty of closures . Note that while you were on the right track sighohwell and cletus both point out more reliable and concise ways of accomplishing..
Multiple ajax calls at same time http://stackoverflow.com/questions/10150159/multiple-ajax-calls-at-same-time with four container each one with a different id. jquery ajax jquery ajax share improve this question CLOSURES Closures are a little mind blowing at first. They are a feature of javaScript and several other modern computing languages. A closure.. like structures with private as well as public members even in the absence of language keywords Public and Private . Closures are made possible by inner functions' use of outer variables suppressing javaScript's garbage collection which would otherwise..
How to run a function in jquery http://stackoverflow.com/questions/1191833/how-to-run-a-function-in-jquery .click doosomething Basically you are declaring your function in the same scope as your are using it JavaScript uses Closures to determine scope . Now since functions in JavaScript behave like any other object you can simply assign doosomething as..
start javascript code with $(function, etc http://stackoverflow.com/questions/12008843/start-javascript-code-with-function-etc
http://stackoverflow.com/questions/1419731/jquery-framework-internals the inheritance used in ECMAScript the core language on which Javascript is based upon Lambdas inline functions Closures outer variables from outer scope accessible from inner functions Regular expressions used for matching the selector strings..
http://stackoverflow.com/questions/2192348/closures-in-a-for-loop in a for loop Closures in a loop are causing me problems. I think I have to make another function that returns a function.. in a for loop Closures in a loop are causing me problems. I think I have to make another function that returns a function to solve the problem..
Looping through Markers with Google Maps API v3 Problem http://stackoverflow.com/questions/2670356/looping-through-markers-with-google-maps-api-v3-problem with how closures work. You may to check out the following Mozilla article for a brief introduction Working with Closures UPDATE Further to the updated question you should consider the following First of all keep in mind that JavaScript does..
jQuery Closures, Loops and Events http://stackoverflow.com/questions/359467/jquery-closures-loops-and-events Closures Loops and Events I have a question similar to the one here http stackoverflow.com questions 341723 event handlers inside..
What does function($) mean in javascript? http://stackoverflow.com/questions/7341265/what-does-function-mean-in-javascript
JavaScript Closures and Memory Leaks http://stackoverflow.com/questions/954252/javascript-closures-and-memory-leaks Closures and Memory Leaks I read in Jquery in Action that memory leaks can result from javascript closures. Unintended closures..
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