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node_modules/@vant/popperjs/README.md

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+# @vant/popperjs
+
+@popperjs/core in commonjs format, added Object.assign polyfill.
+
+## Install
+
+```shell
+# with npm
+npm i @vant/popperjs
+
+# with yarn
+yarn add @vant/popperjs
+
+# with pnpm
+pnpm add @vant/popperjs
+```
+
+## Usage
+
+see: https://popper.js.org/
+
+## Refer
+
+issue: https://github.com/vant-ui/vant/issues/7626