js_string_trim.html

<html>
<head>
    <title>js 字符串去空格</title>
</head>
<body>
    github: <a href="https://github.com/florida0723" target="_blank">github</a>
    <br/>
    js 字符串去空格
<script type="text/javascript">
    // 方法
    function trim(str) {
        return str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
    }
    
    // Polyfill 方式
    if (!String.prototype.trim) {
      String.prototype.trim = function () {
        return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
      };
    }
    
    console.log('  0723 florida 呵呵   ');
    
    console.log(trim('  0723 florida 呵呵   '));
    
    console.log('  0723 florida 呵呵   '.trim());
</script>
</body>
</html>