I would like to ask nuxt.js vue single file, how to use browser rendering + server rendering

ask nuxt.js "s vue single file, how to make some vue scripts to be rendered by browser instead of server.
if the pull-up load belongs to browser rendering through ajax, how to express the .vue single file in ssr mode.
Please, everyone. I"m in a hurry. I"ve searched all the documents about nuxt.js, and vue.js, but I can"t find

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then you put the code in the mounted of the life cycle

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