diff options
Diffstat (limited to 'tools/node_modules/eslint/node_modules/array-uniq/index.js')
-rw-r--r-- | tools/node_modules/eslint/node_modules/array-uniq/index.js | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/tools/node_modules/eslint/node_modules/array-uniq/index.js b/tools/node_modules/eslint/node_modules/array-uniq/index.js deleted file mode 100644 index edd09f8114..0000000000 --- a/tools/node_modules/eslint/node_modules/array-uniq/index.js +++ /dev/null @@ -1,62 +0,0 @@ -'use strict'; - -// there's 3 implementations written in increasing order of efficiency - -// 1 - no Set type is defined -function uniqNoSet(arr) { - var ret = []; - - for (var i = 0; i < arr.length; i++) { - if (ret.indexOf(arr[i]) === -1) { - ret.push(arr[i]); - } - } - - return ret; -} - -// 2 - a simple Set type is defined -function uniqSet(arr) { - var seen = new Set(); - return arr.filter(function (el) { - if (!seen.has(el)) { - seen.add(el); - return true; - } - - return false; - }); -} - -// 3 - a standard Set type is defined and it has a forEach method -function uniqSetWithForEach(arr) { - var ret = []; - - (new Set(arr)).forEach(function (el) { - ret.push(el); - }); - - return ret; -} - -// V8 currently has a broken implementation -// https://github.com/joyent/node/issues/8449 -function doesForEachActuallyWork() { - var ret = false; - - (new Set([true])).forEach(function (el) { - ret = el; - }); - - return ret === true; -} - -if ('Set' in global) { - if (typeof Set.prototype.forEach === 'function' && doesForEachActuallyWork()) { - module.exports = uniqSetWithForEach; - } else { - module.exports = uniqSet; - } -} else { - module.exports = uniqNoSet; -} |