In PHP, I'm used to be able to type-juggle easily, for example, take any parameter and cast it as an array like so:
在PHP中，我习惯于能够轻松地键入-guggle，例如，接受任何参数并将其转换为数组，如下所示：
<?php
$foo = [1];
var_dump($foo);
// array(1) {
// [0]=>
// int(1)
// }
$foo = 1;
var_dump((array)$foo);
// array(1) {
// [0]=>
// int(1)
// }
$foo = "one";
var_dump((array)$foo);
// array(1) {
// [0]=>
// string(3) "one"
// }
What is a simple approximation of the same in Ruby? I feel like I am missing something extremely simple in the documentation.
Ruby中对它的简单近似是什么？我觉得我在文档中遗漏了一些非常简单的东西。
1 个解决方案
#1
3
There is no equivalent. The closest thing would be to simply wrap a variable in an array:
没有等价物。最接近的是简单地将变量包装在数组中：
x = "one"
p [x] # ["one"]
If you want to wrap something in an array unless it's already an array, use Array():
如果要将数据包装在数组中，除非它已经是数组，请使用Array（）：
x = "one"
p Array(x) # ["one"]
x = [1]
p Array(x) # [1], not [[1]]
#1
3
There is no equivalent. The closest thing would be to simply wrap a variable in an array:
没有等价物。最接近的是简单地将变量包装在数组中：
x = "one"
p [x] # ["one"]
If you want to wrap something in an array unless it's already an array, use Array():
如果要将数据包装在数组中，除非它已经是数组，请使用Array（）：
x = "one"
p Array(x) # ["one"]
x = [1]
p Array(x) # [1], not [[1]]