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  • JS高级---识别正则表达式是否匹配

    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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  • 原文地址:https://www.cnblogs.com/etoumao/p/13500129.html
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