chaining

问题 I have an action which I should protect it from CSRF attack. I have used Strut's tokenSession Interceptor to achieve this. <action name="showBranchSelection" class="action.Request.BranchSelectionAction" method="showBranchSelection"> <interceptor-ref name="tokenSession" /> <interceptor-ref name="basicStack" /> <result name="success"> /jsp/customer/request/branchSelection.jsp </result> </action> and works great where this action has been called directly from jsp. <s:form id=

问题 Let say I chained the $.Deferred like this. $.each(data, function(k, v) { promise.then(function() { return $.post(...); }).then(function(data) { if(data)... // here is the conditions return $.post(...); }).then(function(data) { if(data)... // here is another condition return $.post(...); }) }); promise.done(function() { console.log("All Done!"); }); Am I doing it right? how do I prevent the next chain to execute if the condition return false, and where do I do this: if(data){ console.log(

问题 I'm new to ES6 and Javascript and I can't figure out what's wrong with chaining this dump() method in the following piece of code. It returns " main.js:25 Uncaught TypeError: Cannot read property 'dump' of undefined ": class TaskCollection { constructor(tasks = []) { this.tasks = tasks; } addTasks(newTasks = []) { this.tasks = this.tasks.concat(newTasks); } dump() { console.log(this.tasks); } } let myTasks = new TaskCollection([ 'Do stuff' ]); myTasks.addTasks([ 'New Task' ]).dump(); Now if I

问题 This question already has answers here : Hadoop mapreduce : Driver for chaining mappers within a MapReduce job (4 answers) Closed 5 months ago . I'm relatively new to Hadoop and trying to figure out how to programmatically chain jobs (multiple mappers, reducers) with ChainMapper, ChainReducer. I've found a few partial examples, but not a single complete and working one. My current test code is public class ChainJobs extends Configured implements Tool { public static class Map extends

问题 Actaully my application is having hundreds of pages. Now i have to attach an event 'disablePage' on onSubmit of form. I don't want to go to each and every page and write: <form name="frmname" onSubmit="disablePage();"> What i am doing right now is:- excerpt from common.js file; [ included in all pages ] /* we have to attach 'attachFormSubmit' method on onLoad event, otherwise forms[0] will always be null. If there is any alternative, then please suggest one */ if (window.addEventListener){

问题 I want to apply several color filters in chain to a drawable. Is that possible? Or maybe to create a filter that is the combination of the filters I want to apply. For example, I would like: Drawable d = ...; d.setColorFilter(0x3F000000, Mode.OVERLAY).setColorFilter(0xFF2D2D2D, Mode.SCREEN) 回答1: This is the approach I ended using: Manipulate the Drawable bitmap on a Canvas and apply as many layers as I need, using Paint , it works not only for color filters, but also for any kind of image

问题 Got this table in SQL Server 2005, which is used to maintain a history of merging operations: Column FROM_ID (int) Column TO_ID (int) Now I need a query that takes the original FROM_ID as input, and returns the last available TO_ID. So for instance: ID 1 is merged to ID 2 Later on, ID 2 is merged to ID 3 Again later, ID 3 is merged to ID 4 So the query I'm trying to put together will take as input (in the WHERE clause I presume) ID 1, and should give me the last available TO_ID as a result,

问题 Before with jQuery I could do a chained animation with a delay between like so: $("#element").delay(45).animate({ }, 45) .delay(45).animate({ }, 45) .delay(45).animate({ }, 45); Now since the update to v1.6.1 instead of doing what it did previously, it now skips to the last animation. Ignoring the previous statements. I know I can do an oncomplete callback for each animation but that just get's messy: $("#element").delay(45).animate({ }, 45, function(){ $("#element").delay(45).animate({ }, 45

问题 I'm creating a JavaScript library. I've been trying to implement chaining. 0: What I first came up with: function V(p) { return { add : function(addend) { return V(p + addend); }, sub : function(subtra) { return V(p - subtra); }, }; } Using this method I can chain easily: V(3).add(7).sub(5) // V(5) Unfortunately the result is always a wrapped V() function, I am unable to extract the resulting value this way. So I thought about this problem a bit and came up with two semi-solutions. 1: Passing

问题 I'm writing a jQuery plugin that stores some data in some cases. I'd like to write it in a very flexible way, where I'll can change an input parameter to obtain some value that were stored by the plugin. Explanation: When I call $("#any").myPlugin() , my plugin initializes creating a div and some a inside. Clicking on an a will store it .index() using the .data() method. If I call $("#any").myPlugin("getSelection") then I would like to get the value stored with .data() . What I'd tried: