cafe-grader-web Files · node_modules/core-js/modules/es6.array.last-index-of.js

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Location: cafe-grader-web/node_modules/core-js/modules/es6.array.last-index-of.js

Commit Description:

add model solution

Commit Description:

add model solution

References:

r855:ef5cd5528b8d algo

File last commit:

r789:8cd7e8db7e38 default

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                    node_modules/core-js/modules/es6.array.last-index-of.js
                
             | 22 lines
             | 964 B
             | application/javascript 
             | JavascriptLexer
             | 
      
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      'use strict';

      var $export = require('./_export');

      var toIObject = require('./_to-iobject');

      var toInteger = require('./_to-integer');

      var toLength = require('./_to-length');

      var $native = [].lastIndexOf;

      var NEGATIVE_ZERO = !!$native && 1 / [1].lastIndexOf(1, -0) < 0;

      $export($export.P + $export.F * (NEGATIVE_ZERO || !require('./_strict-method')($native)), 'Array', {

        // 22.1.3.14 / 15.4.4.15 Array.prototype.lastIndexOf(searchElement [, fromIndex])

        lastIndexOf: function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {

          // convert -0 to +0

          if (NEGATIVE_ZERO) return $native.apply(this, arguments) || 0;

          var O = toIObject(this);

          var length = toLength(O.length);

          var index = length - 1;

          if (arguments.length > 1) index = Math.min(index, toInteger(arguments[1]));

          if (index < 0) index = length + index;

          for (;index >= 0; index--) if (index in O) if (O[index] === searchElement) return index || 0;

          return -1;

        }

      });

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				'use strict';
				var $export = require('./_export');
				var toIObject = require('./_to-iobject');
				var toInteger = require('./_to-integer');
				var toLength = require('./_to-length');
				var $native = [].lastIndexOf;
				var NEGATIVE_ZERO = !!$native && 1 / [1].lastIndexOf(1, -0) < 0;

				$export($export.P + $export.F * (NEGATIVE_ZERO \|\| !require('./_strict-method')($native)), 'Array', {
				// 22.1.3.14 / 15.4.4.15 Array.prototype.lastIndexOf(searchElement [, fromIndex])
				lastIndexOf: function lastIndexOf(searchElement /* , fromIndex = @[-1] /) {
				// convert -0 to +0
				if (NEGATIVE_ZERO) return $native.apply(this, arguments) \|\| 0;
				var O = toIObject(this);
				var length = toLength(O.length);
				var index = length - 1;
				if (arguments.length > 1) index = Math.min(index, toInteger(arguments[1]));
				if (index < 0) index = length + index;
				for (;index >= 0; index--) if (index in O) if (O[index] === searchElement) return index \|\| 0;
				return -1;
				}
				});