Judge whether the input is a string composed of 0-9 / A-Z / A-Z

From , 3 Years ago, written in JavaScript, viewed 90 times.

// 判断输入是否是一个由 0-9 / A-Z / a-z 组成的字符串
function isalphanumber(str){
        var result=str.match(/^[a-zA-Z0-9]+$/);
        if(result==null) return false;
        return true;
}

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Judge whether the input is a string composed of 0-9 / A-Z / A-Z

Reply to "Judge whether the input is a string composed of 0-9 / A-Z / A-Z"