Angular 组件：单向绑定和属性绑定有什么区别？
Angular Components: What is the difference between one-way and attribute bindings?
我一直在构建一些 angular 组件，想知道单向 ("<") 和属性 ("@") 绑定之间的实际区别是什么？
是否存在其中一种优于另一种的情况？很简单，属性总是不可变的字符串，必须插值？
来自https://docs.angularjs.org/guide/component：
@ bindings can be used when the input is a string, especially when the
value of the binding doesn't change.
来自 https://docs.angularjs.org/api/ng/service/$compile#-scope-
"@" - bind a local scope property to the value of DOM
attribute. The result is always a string since DOM attributes are
strings.
"<" - set up a one-way (one-directional) binding between a
local scope property and an expression passed via the attribute
因此，使用“@”来传递字符串值。该值可以是一个简单的字符串值，例如myattr="hello"，或者它可以是一个 AngularJS 嵌入了表达式的内插字符串，例如myattr="my_{{helloText}}".
我一直在构建一些 angular 组件，想知道单向 ("<") 和属性 ("@") 绑定之间的实际区别是什么？
是否存在其中一种优于另一种的情况？很简单，属性总是不可变的字符串，必须插值？
来自https://docs.angularjs.org/guide/component：
@ bindings can be used when the input is a string, especially when the value of the binding doesn't change.
来自 https://docs.angularjs.org/api/ng/service/$compile#-scope-
"@" - bind a local scope property to the value of DOM attribute. The result is always a string since DOM attributes are strings.
"<" - set up a one-way (one-directional) binding between a local scope property and an expression passed via the attribute
因此，使用“@”来传递字符串值。该值可以是一个简单的字符串值，例如myattr="hello"，或者它可以是一个 AngularJS 嵌入了表达式的内插字符串，例如myattr="my_{{helloText}}".