ES5, Property Descriptor解説 - 枕を欹ã¦ã¦è´ãJavaScript Advent Calendar 2010 6日目ã®id:Constellationã§ã™. ECMAScript5ã«ãªã£ã¦å¤§ãã変更ã•ã‚ŒãŸã¨ã„ãˆã°, strict mode, early error, Object extras, ãã—ã¦Property Descriptorã®æ¦‚念ã§ã™. ã¨ã„ã†ã“ã¨ã§ä»Šå›žã¯ES5 PropertyDescriptorã«ã¤ã„ã¦ã¾ã‚‹ã£ã¨åˆ†ã‹ã£ã¦ã—ã¾ãŠã†ã¨ã„ã†ã“ã¨ã§. Property Descriptorã¨ã¯ JavaScriptã®Objectã¯äº‹å®Ÿä¸ŠHash Tableã§ã™. ã—ã‹ã—, key -> value ã¨ã„ã†å¯¾å¿œã§Hash Tableã«æ ¼ç´ã•ã‚Œã¦ã„ã‚‹ã®ã‹ã¨ã„ãˆã°ãã†ã§ã¯ã‚ã‚Šã¾ã›ã‚“. ãªãœãªã‚‰, EcmaScriptã«ã¯getter / setterã‚„attributeãŒå˜åœ¨ã™ã‚‹ã‹ã‚‰ã§ã™. // getter / setter v
JavaScript.Next
{{#tags}}- {{label}}
{{/tags}}