diff options
Diffstat (limited to 'cloud/core/src/util')
| -rw-r--r-- | cloud/core/src/util/memo.ts | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/cloud/core/src/util/memo.ts b/cloud/core/src/util/memo.ts new file mode 100644 index 000000000..3c84cf1fb --- /dev/null +++ b/cloud/core/src/util/memo.ts @@ -0,0 +1,11 @@ +export function memo<T>(fn: () => T) { + let value: T | undefined + let loaded = false + + return (): T => { + if (loaded) return value as T + loaded = true + value = fn() + return value as T + } +} |
