I have the first name and last name which both link to the users profile:
= link_to (@post.user.fname), user_path(@post.user_id)
= link_to (@post.user.lname), user_path(@post.user_id)
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These are two separate links. When I hover the mouse over the first name it only highlights the first name. And vice versa. (Example is just a randomly generated name)
How do I make the first name and last name one single link_to so it underlines the full name?
我是 reactjs 的新手,安装了 node.js 和 babel。我不清楚为什么我们在 react 中使用 node.js 和 babel。任何人都知道在 react 中推动我。
据我们所知, 0 || 1 = 0
我想做(总是value >= 0)
if value == 0 return 1
elsif value > 0 return value
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那么最好的方法是这个吗?
value = value > 0 ? value : 1
假设我有以下哈希数组
[
{
created: '11/11/86',
amount: 10,
},
{
created: '11/11/86',
amount: 20,
},
{
created: '12/11/86',
amount: 4,
}
]
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我想将所有哈希值与相同的created键合并,结果如下:
[
{
created: '11/11/86',
amount: 30,
},
{
created: '12/11/86',
amount: 4,
}
]
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我意识到我可以使用循环,但我正在寻找更优雅的东西.
哈希可能有更多的键,但我只关心这2.
我有一个与sign(+/-)和数字交错的数组.有没有办法在ruby中评估这个数组?
例如:["+", 1, "+", 2, "+", 3].这需要进行评估,即6在上述情况下进行评估.
更多例子:
["+", 1, "+", 2, "+", 3] -> 6
["+", 1, "+", 2, "-", 3] -> 0
["-", 1, "-", 2, "-", 3] -> -6
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