diff options
Diffstat (limited to 'tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/array/#/e-last-index-of.js')
-rw-r--r-- | tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/array/#/e-last-index-of.js | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/array/#/e-last-index-of.js b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/array/#/e-last-index-of.js new file mode 100644 index 0000000000..4fc536bd68 --- /dev/null +++ b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/array/#/e-last-index-of.js @@ -0,0 +1,29 @@ +'use strict'; + +var toPosInt = require('../../number/to-pos-integer') + , value = require('../../object/valid-value') + + , lastIndexOf = Array.prototype.lastIndexOf + , hasOwnProperty = Object.prototype.hasOwnProperty + , abs = Math.abs, floor = Math.floor; + +module.exports = function (searchElement/*, fromIndex*/) { + var i, fromIndex, val; + if (searchElement === searchElement) { //jslint: ignore + return lastIndexOf.apply(this, arguments); + } + + value(this); + fromIndex = arguments[1]; + if (isNaN(fromIndex)) fromIndex = (toPosInt(this.length) - 1); + else if (fromIndex >= 0) fromIndex = floor(fromIndex); + else fromIndex = toPosInt(this.length) - floor(abs(fromIndex)); + + for (i = fromIndex; i >= 0; --i) { + if (hasOwnProperty.call(this, i)) { + val = this[i]; + if (val !== val) return i; //jslint: ignore + } + } + return -1; +}; |