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Persist javascript variables across pages? [duplicate]

... Ref for implementation: developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Storage – 0xc0de Feb 26 '14 at 13:24 3 ...
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Store images in a MongoDB database

...ilename) { return filename; }, })); post req to our db app.post(‘/api/photo’,function(req,res){ var newItem = new Item(); newItem.img.data = fs.readFileSync(req.files.userPhoto.path) newItem.img.contentType = ‘image/png’; newItem.save(); }); ...
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How to check “hasRole” in Java Code with Spring Security?

... Spring Security 3.0 has this API SecurityContextHolderAwareRequestWrapper.isUserInRole(String role) You'll have to inject the wrapper, before you use it. SecurityContextHolderAwareRequestWrapper ...
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Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...解为Foo[]与Bar[]要比(Foo,Bar)好很多。(当然,为了某些好的API的设计,可以适当做一些妥协。但是在自己的代码内部,你应该多多使用分解后的容易。 通常来说,需要避免创建更多的对象。更少的对象意味者更少的GC动作,GC会对...
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What's the difference between std::move and std::forward

...overflow.com/a/7028318/576911 For forward, if you pass in an lvalue, your API should react as if it receives an lvalue. Normally this means the value will be unmodified. But if it is a non-const lvalue, your API may have modified it. If you pass in an rvalue, this normally means that your API ma...
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$apply already in progress error

... https://docs.angularjs.org/error/$rootScope/inprog The part Inconsistent API (Sync/Async) is very interesting: For example, imagine a 3rd party library that has a method which will retrieve data for us. Since it may be making an asynchronous call to a server, it accepts a callback function, wh...
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How Do I Fetch All Old Items on an RSS Feed?

... be available from another source. Archive.org’s Wayback Machine has an API to access historical content, including RSS feeds (if their bots have downloaded it). I’ve created the web tool Backfeed that uses this API to regenerate a feed containing concatenated historical items. If you'd like to...
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Difference between HBase and Hadoop/HDFS

...ovide you multiple mechanisms to access the data, like the shell and other APIs. And, HBase stores data as key/value pairs in a columnar fashion while HDFS stores data as flat files. Some of the salient features of both the systems are : Hadoop Optimized for streaming access of large files. Follo...
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What is the Java equivalent of PHP var_dump?

... commons.apache.org/lang/apidocs/org/apache/commons/lang/builder/…, this (maybe?): commons.apache.org/lang/api-2.5/org/apache/commons/lang/builder/… – Dimitrios Mistriotis Aug 19 '12 at 12:52 ...
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jQuery : eq() vs get()

...uery element. Since DOM elements have no method fadeIn() it fails. http://api.jquery.com/get/ Description: Retrieve the DOM elements matched by the jQuery object. http://api.jquery.com/eq-selector/ Description: Select the element at index n within the matched set. ...