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doc/api
- v8.md
test/parallel
- test-v8-version-tag.js

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`‎doc/api/v8.md‎`

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+11-2Lines changed: 11 additions & 2 deletions

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Original file line number	Diff line number	Diff line change
`@@ -18,11 +18,20 @@ added: v8.0.0`
`18`	`18`
`19`	`19`	`* Returns: {integer}`
`20`	`20`
`21`		`-Returns an integer representing a "version tag" derived from the V8 version,`
`22`		`-command-line flags and detected CPU features. This is useful for determining`
	`21`	`+Returns an integer representing a version tag derived from the V8 version,`
	`22`	`+command-line flags, and detected CPU features. This is useful for determining`
`23`	`23`	whether a [`vm.Script`][] `cachedData` buffer is compatible with this instance
`24`	`24`	`of V8.`
`25`	`25`
	`26`	+```js
	`27`	`+console.log(v8.cachedDataVersionTag()); // 3947234607`
	`28`	`+// The value returned by v8.cachedDataVersionTag() is derived from the V8`
	`29`	`+// version, command-line flags, and detected CPU features. Test that the value`
	`30`	`+// does indeed update when flags are toggled.`
	`31`	`+v8.setFlagsFromString('--allow_natives_syntax');`
	`32`	`+console.log(v8.cachedDataVersionTag()); // 183726201`
	`33`	+```
	`34`	`+`
`26`	`35`	## `v8.getHeapSpaceStatistics()`
`27`	`36`	`<!-- YAML`
`28`	`37`	`added: v6.0.0`

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`‎test/parallel/test-v8-version-tag.js‎`

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+3-3Lines changed: 3 additions & 3 deletions

Original file line number	Diff line number	Diff line change
`@@ -7,9 +7,9 @@ const versionTag1 = v8.cachedDataVersionTag();`
`7`	`7`	`assert.strictEqual(typeof versionTag1, 'number');`
`8`	`8`	`assert.strictEqual(v8.cachedDataVersionTag(), versionTag1);`
`9`	`9`
`10`		`-// The value of cachedDataVersionTag is derived from the command line flags and`
`11`		`-// detected CPU features. Test that the value does indeed update when flags`
`12`		`-// are toggled.`
	`10`	`+// The value returned by v8.cachedDataVersionTag() is derived from the V8`
	`11`	`+// version, command-line flags, and detected CPU features. Test that the value`
	`12`	`+// does indeed update when flags are toggled.`
`13`	`13`	`v8.setFlagsFromString('--allow_natives_syntax');`
`14`	`14`
`15`	`15`	`const versionTag2 = v8.cachedDataVersionTag();`

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