Default --strict to true.

DanielRosenwasser · DanielRosenwasser · commit b572d15666f0 · 2026-02-03T23:35:17.000Z
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
@@ -9310,7 +9310,7 @@ export type StrictOptionName =
 
 /** @internal */
 export function getStrictOptionValue(compilerOptions: CompilerOptions, flag: StrictOptionName): boolean {
-    return compilerOptions[flag] === undefined ? !!compilerOptions.strict : !!compilerOptions[flag];
+    return compilerOptions[flag] === undefined ? (compilerOptions.strict !== false) : !!compilerOptions[flag];
 }
 
 /** @internal */

Original file line number	Diff line number	Diff line change
`@@ -9310,7 +9310,7 @@ export type StrictOptionName =`
`9310`	`9310`
`9311`	`9311`	`/** @internal */`
`9312`	`9312`	`export function getStrictOptionValue(compilerOptions: CompilerOptions, flag: StrictOptionName): boolean {`
`9313`		`- return compilerOptions[flag] === undefined ? !!compilerOptions.strict : !!compilerOptions[flag];`
	`9313`	`+ return compilerOptions[flag] === undefined ? (compilerOptions.strict !== false) : !!compilerOptions[flag];`
`9314`	`9314`	`}`
`9315`	`9315`
`9316`	`9316`	`/** @internal */`