What is the difference between the $ and the $$ prefixes?

What is the difference between the $ and the $$ prefixes?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, angularjs, topic-specific, javascript, frontend

参考答案摘要

The $$ prefix is used to define a private variable in AngularJS. This is responsible for avoiding accidental code changes due to exposure to the variables. Examples are $$observers , $$watchers , $$ch...

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