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Diffstat (limited to 'src/utility.js')
-rw-r--r-- | src/utility.js | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/utility.js b/src/utility.js index f3ece90b..84b50ce9 100644 --- a/src/utility.js +++ b/src/utility.js @@ -282,6 +282,14 @@ function setIntersect(x, y) { return ret; } +function invertArray(x) { + var ret = {}; + for (var i = 0; i < x.length; i++) { + ret[x[i]] = i; + } + return ret; +} + function copy(x) { return JSON.parse(JSON.stringify(x)); } |