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author | 2020-11-16 00:10:28 +0100 | |
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committer | 2020-11-16 00:10:28 +0100 | |
commit | e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch) | |
tree | 55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/array-find-index/index.js | |
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api, login, auth
Diffstat (limited to 'node_modules/array-find-index/index.js')
-rw-r--r-- | node_modules/array-find-index/index.js | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/node_modules/array-find-index/index.js b/node_modules/array-find-index/index.js new file mode 100644 index 0000000..e2dcd9a --- /dev/null +++ b/node_modules/array-find-index/index.js @@ -0,0 +1,25 @@ +'use strict'; +module.exports = function (arr, predicate, ctx) { + if (typeof Array.prototype.findIndex === 'function') { + return arr.findIndex(predicate, ctx); + } + + if (typeof predicate !== 'function') { + throw new TypeError('predicate must be a function'); + } + + var list = Object(arr); + var len = list.length; + + if (len === 0) { + return -1; + } + + for (var i = 0; i < len; i++) { + if (predicate.call(ctx, list[i], i, list)) { + return i; + } + } + + return -1; +}; |