From 8eca71948d3afee251b52cbc4eb8dc6653a19d6e Mon Sep 17 00:00:00 2001 From: atomiks Date: Mon, 1 Jan 2018 22:09:35 +1100 Subject: [PATCH] Update mask.md --- snippets/mask.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/snippets/mask.md b/snippets/mask.md index 77c817c4d..7e5875736 100644 --- a/snippets/mask.md +++ b/snippets/mask.md @@ -1,6 +1,8 @@ ### mask -It replace all but the last `num` (first if `num` is negative, by default `4`) characters by the provided masking character (`'*'` by default). +Replaces all but the last `num` of characters (first if `num` is negative, by default `4`) with the provided mask character (`'*'` by default). + +Use `Array.slice()` to grab the portion of the characters that need to be masked and use `Array.replace()` with a regex to replace every character with the mask character. Concatenate the masked characters with the remaining unmasked portion of the string. ```js const mask = (cc,num = 4,mask = '*') =>