小编Eri*_*icz的帖子

我试着安装Sass.我之前安装了Ruby和MSYS2,这是所有与Chocolatey的最新产品:

choco install ruby
choco install msys2

看似他们已正确安装.ruby -v结果是:

ruby 2.5.0p0 (2017-12-25 revision 61468) [x64-mingw32]

当我尝试运行时gem install sass收到以下错误消息:

ERROR:  Error installing sass:
        The last version of ffi (< 2, >= 0.5.0) to support your Ruby & RubyGems was 1.9.18. Try installing it with `gem install ffi -v 1.9.18` and then running the current command again
        ffi requires Ruby version < 2.5, >= 2.0. The current ruby version is 2.5.0.

好的,所以我试图跑 …

假设我有以下 JSON，它可以轻松地来回转换为 JavaScript 对象：

{
    "foo": {
        "bar": "Common substitute word",
        "baz": "Another common substitute word",
        "questionWords": {
            "wat": "Inadequate question word",
            "wut": "Even more inadequate question word"
        }
    }
}

我在另一个 JSON 文件中收到有关此 JSON 的修改，如下所示：

{
    "foo.questionWords.wut": "A question word to avoid"
}

所以要修改的路径以字符串形式给出。我必须通过新数据修改第一个 JSON。

但也可能不存在新的数据路径：

{
    "foo.callingWords.dude": "Commonly used synonym for pal"
}

{
    "who.knows.how.deep.we.will.go": "Look, a penny!"
}