keys

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 need to open link in new tab using Selenium. So is it possible to perform ctrl+click on element in Selenium to open it in new tab? 回答1: Use an ActionChain with key_down to press the control key, and key_up to release it: import time from selenium import webdriver from selenium.webdriver.common.action_chains import ActionChains from selenium.webdriver.common.keys import Keys driver = webdriver.Chrome() driver.get('http://google.com') element = driver.find_element_by_link_text('About') ActionChains(driver) \ .key_down(Keys.CONTROL) \ .click

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 have a a bunch of keys that i want to index using .indexOn Suppose my data looks like the following. I want to be able to use .orderByChild("height") . { "lambeosaurus" : { "stats" : { "height" : 2.1 , "length" : 12.5 , "weight" : 5000 } }, "stegosaurus" : { "stats" : { "height" : 4 , "length" : 9 , "weight" : 2500 } } } How wound I specify the rule for indexing height which is a child of stats ? Do I have to restructure or flatten my data? 回答1: You can query and index arbitrarily deep now. { "rules" : { "$dinosaur" : { ".indexOn

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 working with a Freescale MX6 and a 3.10.31 Freescale modified kernel. I have a Maxim MAX7325 used as an IO expander, which has pushbuttons attached to P0-P2. The interrupt line from the 7325 is attached to the GPIO_3 pad (which I believe is GPIO1_3...) I set up the 7325 and gpio-keys in the device tree like this: max7325_reset: max7325-reset { compatible = "gpio-reset"; reset-gpios = ; reset-delay-us = ; #reset-cells = ; }; gpio-keys { compatible = "gpio-keys"; sw2 { gpios = ; linux,code = ; //a gpio-key,wakeup; }; }; and &i2c1 { clock

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: Trying to merge duplicate keys of json array and build respective values in csv format. A=[{a:1,b:2},{a:1,b:1},{a:1,b:6},{a:2,b:5},{a:2,b:3}] Trying to convert in A=[{a:'1',b:'2,1,6'},{a:2,b:'5,3'}] code Which i tried var existingIDs = []; A= $.grep(A, function (v) { if ($.inArray(v.a, existingIDs) !== -1) { return v.b+= ','; } else { existingIDs.push(v.a); return true; } }); the output is returns like A=[{a:1,b:2},{a:1,b:'1,'},{a:1,b:'6,'},{a:2,b:5},{a:2,b:'3,'}] 回答1: Create a temporary object with 1 , 2 etc from a as keys and keep adding

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: If a django model contains a foreign key field, and if that field is shown in list mode, then it shows up as text , instead of displaying a link to the foreign object. Is it possible to automatically display all foreign keys as links instead of flat text? (of course it is possible to do that on a field by field basis, but is there a general method?) Example : class Author(models.Model): ... class Post(models.Model): author = models.ForeignKey(Author) Now I choose a ModelAdmin such that the author shows up in list mode: class PostAdmin(admin

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 have dstream of (Key,Value) type. mapped2 . foreachRDD ( rdd => { rdd . foreachPartition ( p => { p . foreach ( x => { } )}) }) I need to get assured that all items with identical keys are processed in one partition and by one core..so actually there are processed sequentially.. How to do this? Can I use GroupBykey which is inefficient? 回答1: You can use PairDStreamFunctions.combineByKey : import org . apache . spark . HashPartitioner import org . apache . spark . streaming . dstream . DStream /** * Created by Yuval.Itzchakov on

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 have two related models Domain and Server . I'm trying to insert data to my tables using a form. here is my store function : public function store ( Request $request , Domain $domain , Server $server ) { $domain -> create ( $request -> all ()); $server -> domain ()-> associate ( $domain ); $server -> save (); $server -> create ( $request -> only ([ 'srv_hostname' , 'srv_ip' , 'srv_port' ])); return redirect ()-> route ( 'domains.index' ); } the table servers has a FK domain_id that points to the PK domain.id Once I submit my form

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 create a sqlite3 database as a test environment that mimics the production environment. Due to the way production is setup the tables are in multiple schemas. I have setup the classes in DBIx::Class, using $schema->storage->dbh_do to attach the database with the schema, and using $schema-deploy() to create the database. However when it comes to creating the foreign key on the second table I get the following error: DBIx::Class::Schema::deploy(): DBIx::Class::Schema::deploy(): DBI Exception: DBD::SQLite::db do failed: near ".":

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: Using Powershell 2.0 Is there a way to keep the order of keys in a hashtable as they were added? Like a push/pop mechanism. Example: $hashtable = @{} $hashtable . Add ( "switzerland" , "berne" ) $hashtable . Add ( "germany" , "berlin" ) $hashtable . Add ( "spain" , "madrid" ) $hashtable . Add ( "italy" , "rome" ) $hashtable I want to retain the order in which I've added the elements to the hashtable. 回答1: there is no built in solution in powershell V1 / V2, you will want to use the .net System.Collections.Specialized

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've found plenty of info on the web about making dictionaries able to do case insensitive look-ups such that if I added a key/value pair of ("A", "value") calling MyDict [ "a" ] == MyDict [ "A" ] will return true. What I want to know is why I get a "key has already been added" error when I do MyDict . Add ( "A" , "value1" ); MyDict . Add ( "a" , "value2" ); if I defined my dictionary to do case sensitive look-ups. Is there no way to define a Dictionary to be able to add different cased keys? 回答1: Dictionaries are case-sensitive by