我要评论识别正则表达式是否匹配
console.log(/[a-za-z]+/.test("hello"));
console.log(/./.test("除了回车换行以为的任意字符"));//true
console.log(/.*/.test("0个到多个"));//true
console.log(/.+/.test("1个到多个"));//true
console.log(/.?/.test("哈哈"));//true
console.log(/[0-9]/.test("9527"));//true
console.log(/[a-z]/.test("what"));//true
console.log(/[a-z]/.test("are"));//true
console.log(/[a-za-z]/.test("干啥子"));//false
console.log(/[0-9a-za-z]/.test("9ebg"));//true
console.log(/b|(ara)/.test("abra"));//true
console.log(/[a-z]{2,3}/.test("arfsf"));//true
console.log(/\d/.test("998")); //true
console.log(/\d*/.test("998"));
console.log(/\d+/.test("998"));
console.log(/\d{0,}/.test("998"));
console.log(/\d{2,3}/.test("998"));
console.log(/\d/.test("eat"));
console.log(/\s/.test(" "));
console.log(/\s/.test("嘎嘎 "));
console.log(/\w/.test("_"));
console.log(/\w/.test("_"));
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