contains () method, but there doesn't seem to be one. What is a reasonable way to check for this? javascript string substring string-matching. ... <看更多>

Introduction to JavaScript String includes() method ... The includes() method returns true if the searchString found in the string ; otherwise false . The ... ... <看更多>

嚴格相等比較的spec 定義 · 值為 null 或 undefined 時會回傳 true · String 型別就比對字串 · Boolean 、 Symbol 和 Object 型別都是比較值是否相同(但 ... ... <看更多>

array.iterator'; import 'core-js/modules/es.object.to-string'; ... ... <看更多>

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