conditional

问题 I have an ansible playbook with a couple of tasks that check a directory for files created on todays date and saves them in files . I'm doing my comparison off of files|length and print out two different messages depending if the length is 0 or not. Here is the code: - name: Grabbing all of the files that were created today shell: find /home/user/empty_directory -maxdepth 1 -daystart -ctime 0 -print register: files - debug: var=files.stdout - debug: msg="The directory isn't empty" when: files

问题 I am trying to conditionally require css for my react project and it works locally. However, when the react-scripts build command is executed by react js all css files get bundled into one and the conditional import no longer works. if(isSmartPhoneOrTablet()){ require("./mobileStyle.css"); }else { require("./style.css"); } "build": "react-scripts build" 回答1: You could try something like var cssfile; if(isSmartPhoneOrTablet()){ cssfile = "./mobileStyle.css"; }else { cssfile = "./style.css"; }

问题 In PHP, this evaluates to true : $a = 1 $b = 2 var_dump($a && $b); // true In ruby, this evaluates to 2 : a = 1 b = 2 p a && b # 2 Why does ruby return the value of the last statement (when the first is true and the second one is also true) and does not return a boolean? I have two arrays and I iterate them with an external iterator: a = [1,2,3].to_enum b = [5,6,7].to_enum c = [] begin while a_next = a.next && b_next = b.next result = a_next + b_next p "a[x] + b[x] = c[x] = #{a_next} + #{b

问题 In PHP, this evaluates to true : $a = 1 $b = 2 var_dump($a && $b); // true In ruby, this evaluates to 2 : a = 1 b = 2 p a && b # 2 Why does ruby return the value of the last statement (when the first is true and the second one is also true) and does not return a boolean? I have two arrays and I iterate them with an external iterator: a = [1,2,3].to_enum b = [5,6,7].to_enum c = [] begin while a_next = a.next && b_next = b.next result = a_next + b_next p "a[x] + b[x] = c[x] = #{a_next} + #{b

问题 In PHP, this evaluates to true : $a = 1 $b = 2 var_dump($a && $b); // true In ruby, this evaluates to 2 : a = 1 b = 2 p a && b # 2 Why does ruby return the value of the last statement (when the first is true and the second one is also true) and does not return a boolean? I have two arrays and I iterate them with an external iterator: a = [1,2,3].to_enum b = [5,6,7].to_enum c = [] begin while a_next = a.next && b_next = b.next result = a_next + b_next p "a[x] + b[x] = c[x] = #{a_next} + #{b

问题 I have the following simple code piece: List<XXXXBean> queryPeriodData() { if (CollectionUtils.isEmpty(res)) { return Collections.emptyList(); } return res; } It works. but if I change to this, there is a compile error... return CollectionUtils.isEmpty(res) ? Collections.emptyList() : res; error message is "Type mismatch: cannot convert from List< capture#1-of ? extends Object> to List< XXXXBean>" I don't know the difference between the two way. 回答1: try Collections.<XXXXBean>emptyList() in

问题 This is odd. I'm creating an Excel 2003 spreadsheet from MS Access 2003 VBA, and the coding includes conditional formatting: if the cell value is greater than [a value] it's colored red if it's less than [a value], it's colored green. Even though the CF formulas are created successfully when the spreadsheet is generated, all the colors are green, regardless of the value. If I manually type the original value into a cell, it will trigger then CF and it appears correctly, but otherwise it just

问题 This is odd. I'm creating an Excel 2003 spreadsheet from MS Access 2003 VBA, and the coding includes conditional formatting: if the cell value is greater than [a value] it's colored red if it's less than [a value], it's colored green. Even though the CF formulas are created successfully when the spreadsheet is generated, all the colors are green, regardless of the value. If I manually type the original value into a cell, it will trigger then CF and it appears correctly, but otherwise it just

问题 is their a way via the functions.php or an other php method to don't load a specific div element on the shop / main page in woocommerce? <div id="nm-shop" class="nm-shop nm-shop-sidebar-header images-lazyload images-show" style="min-height: 288px;"> ... </div> This code includes a filter and the product archives of my shop page, but i only wanna display this at the category pages, where it already works, but not on the main page. How can i stop loading this div element on the shop / main page

问题 is their a way via the functions.php or an other php method to don't load a specific div element on the shop / main page in woocommerce? <div id="nm-shop" class="nm-shop nm-shop-sidebar-header images-lazyload images-show" style="min-height: 288px;"> ... </div> This code includes a filter and the product archives of my shop page, but i only wanna display this at the category pages, where it already works, but not on the main page. How can i stop loading this div element on the shop / main page