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php - symfony2: how to access service from template

If I created a service is there a way to access it from twig, without creating a twig.extension? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - UNION the results of multiple stored procedures

I have a stored procedure I need to call several different times passing in different paramaters each time. I would ... . Thanks for any help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do you find out the caller function in JavaScript when use strict is enabled?

Is it possible to see the callee/caller of a function when use strict is enabled? 'use strict'; function jamie ... jamie(); } jiminyCricket (); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why does byteArray have a length of 22 instead of 20?

We try to convert from string to Byte[] using the following Java code: String source = "0123456789"; byte[] ... get an array of length 20? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql server - The request failed or the service did not respond in a timely fashion?

I have the following error while I connect to SQL Server 2008 Management Studio with Windows authentication. "The ... getting solution.. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to bootstrap installation of Python modules on Amazon EMR?

I want to do something really basic, simply fire up a Spark cluster through the EMR console and run a ... straightforward way of doing this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How are the __cplusplus directive defined in various compilers?

My compiler expands it to 199711L. What does that mean? I read that __cplusplus > 199711L signifies C++11. What ... and what does it signify? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Are data attribute css selectors faster than class selectors?

A few months ago this article pointed out that classes could actually be avoided all together from website development ... jQuery(".something")? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Escape HTML to PHP or Use Echo? Which is better?

In terms of performance , what would be better. Using PHP to echo all the HTML output so I can pepper it with the ... ; ?> </body> </html> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jquery - How to get jQueryUI dragdrop working with touch devices

This is one situation where I hope someone replies to tell me I'm an idiot. But I continue to be amazed that ... shed some light on this issue? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python subclass access to class variable of parent

I was surprised to to learn that a class variable of a subclass can't access a class variable of the parent without ... B.x after B is defined. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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When to use ArrayList over array[] in c#?

I often use an ArrayList instead of a 'normal' array[]. I feel as if I am cheating (or being lazy) when ... to use an ArrayList over an array? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - css transitions on new elements

I cannot find a way to use css transitions on newly created dom elements. let's say I have an empty ... transitions on newly created elements? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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symbols - Microsoft equivalent of the nm command

I've long used cygwin's nm command for all my .lib symbol debugging needs, but recently I thought about referring ... nm man page is here. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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When will a TCP network packet be fragmented at the application layer?

When will a TCP packet be fragmented at the application layer? When a TCP packet is sent from an application, will ... to the next layer, right? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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debugging - How to debug Node.JS child forked process?

I'm trying to debug the child Node.JS process created using: var child = require('child_process'); child .fork ... connect it in Remote debug? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why NoClassDefFoundError caused by static field initialization failure?

Here is a interesting java question. the following simple java program contains static field initialized by a method statically. ... (); } } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Configure logging for the MongoDB Java driver

Can I configure the MongoDB Java driver to output useful (for debugging) messages, ideally using one of the ... well as any error codes. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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JNI - How to callback from C++ or C to Java?

I have Java application that invokes native C++/C code. The C++/C code needs to callback into Java. Could you ... some examples how to do this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - ConcurrentDictionary Pitfall - Are delegates factories from GetOrAdd and AddOrUpdate synchronized?

The documentation of ConcurrentDictionary doesn't explicit state, so I guess we cannot expect that delegates valueFactory ... thread-safe too)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Querying an LDAP

I haven't worked with an LDAP before so I am a bit lost. I need to connect to an LDAP source find a ... point me in the right direction please? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - use multiple columns as variables with sapply

I have a dataframe and I would like to apply a function that takes the values of three columns and computes ... , df$a, df$b, df$c) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to draw a blurry circle on HTML5 canvas?

I'm able to draw a simple circle on HTML5 canvas, but I'd like to add some blur around it. What I ... circle itself also has a blur effect? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - CGFloat-based math functions?

In both OS X and iOS, Apple is using the CGFloat typedef to automatically get a float on 32-bit systems and ... . What strategy are you using? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.htaccess - Laravel Routes not working, Apache configuration only allows for public/index.php/route

Example: Route::get('/get', function() { return 'get'; }); To view the route above, I must navigate to ... this still? I'm running Ubuntu. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Is there a dictionary functionality in R

Is there a way to create a "dictionary" in R, such that it has pairs? Something to the effect of: x= ... best, efficient way to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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504 views

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ember.js - How to use third party npm packages with ember cli app

EDIT: this is actually about any npm package which is not designed to play along with ember. In my case, I tried ... /rsvp/dist/rsvp.js:1531:9) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Yacc equivalent for Java

I'm working on a compiler design project in Java. Lexical analysis is done (using jflex) and I'm ... doing syntactical analysis and why. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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