| Tim van der Lippe | 16b8228 | 2021-11-08 13:50:26 +0000 | [diff] [blame] | 1 | 'use strict' |
| Mathias Bynens | 79e2cf0 | 2020-05-29 16:46:17 +0200 | [diff] [blame] | 2 | |
| Tim van der Lippe | 16b8228 | 2021-11-08 13:50:26 +0000 | [diff] [blame] | 3 | let printed = {} |
| Mathias Bynens | 79e2cf0 | 2020-05-29 16:46:17 +0200 | [diff] [blame] | 4 | |
| Tim van der Lippe | 16b8228 | 2021-11-08 13:50:26 +0000 | [diff] [blame] | 5 | module.exports = function warnOnce(message) { |
| 6 | if (printed[message]) return | ||||
| 7 | printed[message] = true | ||||
| Mathias Bynens | 79e2cf0 | 2020-05-29 16:46:17 +0200 | [diff] [blame] | 8 | |
| 9 | if (typeof console !== 'undefined' && console.warn) { | ||||
| Tim van der Lippe | 16b8228 | 2021-11-08 13:50:26 +0000 | [diff] [blame] | 10 | console.warn(message) |
| Mathias Bynens | 79e2cf0 | 2020-05-29 16:46:17 +0200 | [diff] [blame] | 11 | } |
| 12 | } | ||||