underscore

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: My meteor.js application is crashing. I am getting the following error. It appears that the error is not in my application code. I would appreciate if someone could take a look at the following message and let me know how I could get rid of this error. Error Message Your application is crashing. Waiting for file change. => Modified -- restarting. => Errors prevented startup: Exception while bundling application: Error: EACCES, permission denied '/Users/username/Dropbox/LearnSoftware_and_Math/LearnJavascript/LearnMeteor/microscope/.meteor

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using require Js and am getting rather confused as to why my modules are loading but dependencies are always undefined and even upon using require.defined() function to check if my module has been loaded it indeed has been but when i use the require([deps],function(deps){}); all of my dependencies are undefined (except for jquery ,underscore and knockout) my file structure is as follows my file structure is as follows scripts | | main.js | |_________BusinessScripts | | | | jquery.js | | | | boostrapper.js-undefined ko.js | | dataservice

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: function isUserID ( $username ) { if ( preg_match ( '/^[a-z\d_]{2,20}$/i' , $username )) { return true ; } else { return false ; } } Easy one.., i have this, can you explain what it checks for? I know it checks if the username have length between 2-20, what more? Thanks 回答1: It searches for text containing only alphanumeric and underscore characters, from 2 to 20 characters long. /^[a-z\d_]{2,20}$/ i |||| | ||| ||| |||| | ||| || i : case insensitive |||| | ||| |/ : end of regex |||| | ||| $ : end of text |||| | ||{ 2 , 20 } :

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Ok guys so I have this array of key pair values which I'm using as my model: var acs = [{'label':'input box'},{'label':'text area'}]; the rest of the code goes as follows var Action = Backbone.Model.extend({}); var action = new Action(acs); var ActionView = Backbone.View.extend({ tagName:"li", template: _.template($('#actions-template').html()), events:{ "click":"makeInput" }, render:function(){ $(this.el).html(this.template(this.model.toJSON())); $(".hero-unit>ul").append(this.el); return this; }, makeInput:function(){ alert("im in"); } });

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm exploring the idea of using Webpack with Backbone.js . I've followed the quick start guide and has a general idea of how Webpack works, but I'm unclear on how to load dependency library like jquery / backbone / underscore. Should they be loaded externally with or is this something Webpack can handle like RequireJS's shim? According to the webpack doc: shimming modules , ProvidePlugin and externals seem to be related to this (so is bundle! loader somewhere) but I cannot figure out when to use which. Thanks 回答1: It's both

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to use the NDK with C++ and can't seem to get the method naming convention correct. my native method is as follows: extern "C" { JNIEXPORT void JNICALL Java_com_test_jnitest_SurfaceRenderer_drawFromJni (JNIEnv* env, jclass c) { // } } with a header wrapped in extern "C" {} aslo. Everything compiles fine, creates a .so file and copies to the libs folder under my project, but when I debug and run in Eclipse I keep getting a log cat message that of "no implementation found for native...". Is there something i'm missing as all the NDK

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm am working with an app that uses both jQuery and underscore.js . I'd like to be able to use some of underscore's iterator functions, such as any() and all() over a collection of jQuery objects. is there a way to do this? I'd like to do something similar to the following: checkboxes = $("input[type=checkbox]"); _.filter(checkboxes, function(box) { return box.is(":checked"); }); but this throws an error: Uncaught TypeError: Object #<HTMLInputElement> has no method 'is' so I'm assuming box in this context isn't acting like as a jQuery

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to access elements of a dict with keys that start with the underscore character. For example: my_dict = {"_source": 'xyz'} I'm trying to access them in a Django template. Obviously I realise that you can't access underscored python variables from a Django template (because they are considered private in Python) but this is a dict object where any immutable object is a valid key. I can't access the above dict in a Django template using {{ my_dict._source }} so I assume Django is preventing it. Is that accurate? I am kind of hoping

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Is there any ready function which converts camel case Strings into underscore separated string? I want something like this: "CamelCaseString" . to_underscore to return "camel_case_string". ... 回答1: Rails' ActiveSupport adds underscore to the String using the following: class String def underscore self . gsub ( /::/ , '/' ). gsub ( /([A-Z]+)([A-Z][a-z])/ , '\1_\2' ). gsub ( /([a-z\d])([A-Z])/ , '\1_\2' ). tr ( "-" , "_" ). downcase end end Then you can do fun stuff: "CamelCase" . underscore => "camel_case" 回答2: You can use

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a piece of C code that calls a function defined in assembly. By way of example, let's say foo.c contains: int bar(int x); /* returns 2x */ int main(int argc, char *argv[]) { return bar(7); } And bar.s contains the implementation of bar() in x86 assembly: .global bar bar: movl 4(%esp), %eax addl %eax, %eax ret On Linux I can easily compile and link these sources with GCC as follows: % gcc -o test foo.c bar.s % ./test; echo $? 14 On Windows with MinGW this fails with an error of "undefined reference to `bar'". It turns out the cause for