'LHS' 在来自 Vue.js 的 ESLint 插件的消息中意味着什么?

What does 'LHS' mean in a message from the ESLint plugin for Vue.js?

A message from the official ESLint plugin for Vue.js 说:

'v-model' directives require the attribute value which is valid as LHS.

触发该消息的示例是

<input v-model="foo() + bar()">

LHS 是什么意思?

lhs 是左手边的缩写