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正则表达式中的flag

 题目:Using the regex starRegex, find and extract both Twinkle words from the string twinkleStar.

let twinkleStar = "Twinkle, twinkle, little star";
let starRegex = /Twinkle/ig// 多个flag,i表示ignorance,g表示global
let result = twinkleStar.match(starRegex); 

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