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Add functions for upper & lowercase random strings

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This commit is contained in:
David Baker
2021-02-22 16:47:16 +00:00
parent f547fa732f
commit 83d1e61b2f
1 changed files with 16 additions and 1 deletions
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17
src/randomstring.ts
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@@ -15,9 +15,24 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
const LOWERCASE = "abcdefghijklmnopqrstuvwxyz";
const UPPERCASE = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const DIGITS = "0123456789";
export function randomString(len: number): string {
return randomStringFrom(len, UPPERCASE + LOWERCASE + DIGITS);
}
export function randomLowercaseString(len: number): string {
return randomStringFrom(len, LOWERCASE);
}
export function randomUppercaseString(len: number): string {
return randomStringFrom(len, UPPERCASE);
}
function randomStringFrom(len: number, chars: string): string {
let ret = "";
const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
for (let i = 0; i < len; ++i) {
ret += chars.charAt(Math.floor(Math.random() * chars.length));