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https://github.com/hanzoai/next.js.git
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Will Binns-SmithandGitHub
94b246469e
Like `compiler.define`, this allows users to create compile-time constants both Turbopack and webpack from a single API. `compiler.defineServer` instead only makes these constants available for server or edge environments, not the client environment.
31 lines
769 B
JavaScript
31 lines
769 B
JavaScript
/* eslint-disable no-undef */
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'use client'
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import { useState, useEffect } from 'react'
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export function ClientValue() {
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const [serverVar, setServerVar] = useState('<loading>')
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// Use `useEffect` to only evaluate this in the actual browser as client
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// components are still SSRed
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useEffect(() => {
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setServerVar(
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typeof MY_SERVER_VARIABLE === 'string' ? MY_SERVER_VARIABLE : 'not set'
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)
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}, [setServerVar])
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return <>{serverVar}</>
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}
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export function ClientExpr() {
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const [serverExpr, setServerExpr] = useState('<loading>')
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useEffect(() => {
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setServerExpr(
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typeof process.env.MY_MAGIC_SERVER_EXPR === 'string'
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? process.env.MY_MAGIC_SERVER_EXPR
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: 'not set'
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)
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}, [setServerExpr])
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return <>{serverExpr}</>
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}
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