syntax

How to use a Vue variable in metaInfo?

由 别等时光非礼了梦想. 提交于 2020-03-04 16:39:06
问题 What is the correct syntax for this line Vue inside the script: export default { metaInfo: { title: "{product.name} wallpaper", The line came to the form: title: "Space wallpaper", product.name I get it in api: mounted() { let vm = this vm.getProducts(); }, methods: { getProducts() { let vm = this axios.get('/api/products') .then(function(response) { vm.products = response.data.data }) 回答1: Template literals use backticks and a dollar sign before the braces, e.g.: title: `${product.name}

PHP Parse Error: syntax error, unexpected $end 错误解决

由 最后都变了- 提交于 2020-03-04 08:11:49
这几天写php程序，感觉很多地方不如asp，asp.Net，jsp顺手，比如session使用先得 session_start();，文件跳转header用的也不方便.... 也许是不熟悉的php的一些特性吧，不过写多了，也就慢慢适应将就了..... 这里就整理一个代码编写调试问题，错误如下： Parse error : syntax error, unexpected $end in D:\xampp\htdocs\guestBook\guestBook.php on line 330 看看程序 330行，代码最后一行，这有什么错误？google搜，找到了： In PHP 5, the following error may appears as an error entry in Apache error log or simply displays on PHP web page, even if calling to php scripts with php_info() works perfectly and successfully returns information on PHP configurations: Parse Error: syntax error, unexpected $end in ….. scripts.php on line … The

Parse error: syntax error, unexpected end of file in *.php on line * 解决方法

由 你。 提交于 2020-03-04 08:11:21
Parse error: syntax error, unexpected end of file in *.php on line * 解决方法 这篇文章主要介绍了PHP错误Parse error: syntax error, unexpected end of file in test.php on line 12解决方法,需要的朋友可以参考下 今天在写PHP程序的时候总是出现这样的错误：Parse error: syntax error, unexpected end of file in *.php on line *，然后我就根据提示，找到那个文件，然后错误中总是提示最后一行出错，我找到最后一行发现是</html>，晕的，这能有什么错误，找了好久才找到问题所在，拿来分享。 出现这个错误的原因就是语法错误，肯定是PHP程序的书写不规范造成，我后来一条一条看才发现，原来是PHP语句标识符错了，正常情况下应该是这样的：<?php 你的PHP语句?>，我写成了这样：<? 你的PHP语句?>，当然写成这样也不错，只是我没有在php.ini中开启短标签，所以就造成了这个错误，另外要注意，<?php后面有一个空格，如果不写也会出现这个错误，虽然这个错误是不经意间，但有时还是很难找出来，大家注意下吧。 在php.ini中找到 short_open_tag 把short_open_tag

what ruby features are used in chef recipes?

由 柔情痞子 提交于 2020-02-25 16:52:27
问题 I just started using chef and don't know much about ruby. I have problems understanding the language-syntax used in recipes. Say, I create a directory in a cookbook in recipes/default.rb like: directory "/home/test/mydir" do owner "test" mode "0755" action :create recursive true end I assume this is part of a valid ruby script. What do lines like owner "test" mean? Is this a function call, a variable assignment or something else entirely? 回答1: Chef is written in Ruby and makes an extensive

VHDL - ror and rol operations

由 与世无争的帅哥 提交于 2020-02-25 06:10:07
问题 How can I solve this problem? reg variable is defined as: signal reg:STD_LOGIC_VECTOR(7 downto 0):="00000001"; There is a problem with ror operation in the code below. The error message is: Line 109: Syntax error near "ror". Line 108: found '0' definitions of operator "=", cannot determine exact overloaded matching definition for "=" -- process(clk1,up_down,enable,reset) begin if up_down="1" then reg ror 1; end if; end process; 回答1: Your problem is the the ror operator is not defined for std

When is semicolon mandatory in scala?

由 寵の児 提交于 2020-02-24 14:41:13
问题 I am learning how to program in Scala and was being told that semicolon is optional in Scala. So with that in mind, I tried with the following nested block of code which does not have semi colon. However, it throws an error in the Scala REPL scala> { val a = 1 | {val b = a * 2 | {val c = b + 4 | c} | } | } <console>:17: error: Int(1) does not take parameters {val b = a * 2 And the sample with semi colon worked perfectly fine. scala> { val a = 1; | { val b = a*2; | { val c = b+4; c} | } | }

When is semicolon mandatory in scala?

由 心已入冬 提交于 2020-02-24 14:39:24
问题 I am learning how to program in Scala and was being told that semicolon is optional in Scala. So with that in mind, I tried with the following nested block of code which does not have semi colon. However, it throws an error in the Scala REPL scala> { val a = 1 | {val b = a * 2 | {val c = b + 4 | c} | } | } <console>:17: error: Int(1) does not take parameters {val b = a * 2 And the sample with semi colon worked perfectly fine. scala> { val a = 1; | { val b = a*2; | { val c = b+4; c} | } | }

Odd compiler error when using Obj-C objects in a switch statement

由 自古美人都是妖i 提交于 2020-02-24 06:01:25
问题 I get a compiler error when using an Objective-C object within a switch statement: switch (myConstant) { case 0: UIViewController *myController = [[[UIViewController alloc] init] autorelease]; [self.navigationController pushViewController:myViewController animated:YES]; break; case 1: // stuff break; default: break; } The error states: Expected expression before 'UIViewController' 'myViewController' undeclared (first use in this function) I understand that the second error is a direct result

How to iterate through a property of a class in VB?

由 做~自己de王妃 提交于 2020-02-23 06:59:11
问题 If I have a class object A, and it has properties such as a0, a1, a2... If this class has 100 properties like this (up to a99). I would like to display each of these properties, but I do not want to have 100 lines of code of calling this as following print A.a0 print A.a1 print A.a2 ... print A.a99 The code is too inefficient, so I am wondering if there is a way to loop through these properties. Thank you. 回答1: .NET provides the ability to examine an object at runtime through a process known

How to iterate through a property of a class in VB?

由 非 Y 不嫁゛ 提交于 2020-02-23 06:59:05
问题 If I have a class object A, and it has properties such as a0, a1, a2... If this class has 100 properties like this (up to a99). I would like to display each of these properties, but I do not want to have 100 lines of code of calling this as following print A.a0 print A.a1 print A.a2 ... print A.a99 The code is too inefficient, so I am wondering if there is a way to loop through these properties. Thank you. 回答1: .NET provides the ability to examine an object at runtime through a process known
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