• 修复IE9.0下PlaceHolder 属性问题js脚本


    在开发前端系统时候碰到这种兼容问题,以下是个人解决方案,希望能给其他人带来帮助:

    var JPlaceHolder = {
        //检测
        _check: function () {
            return 'placeholder' in document.createElement('input');
        },
        //初始化
        init: function () {
            if (!this._check()) {
                this.fix();
            }
        },
        //修复
        fix: function () {        
            jQuery(':input[placeholder]').each(function (index, element) {
                var self = $(this), txt = self.attr('placeholder'), atrValue = self.attr('type');
    
                //密码文本框
                if (atrValue == "password") {
                    self.attr("type", "text");
                    self.attr("pwd", "true");
                } else {
                    self.attr("pwd", "false");
                }
    
                self.focusin(function (e) {
                    var atrpwd = self.attr('pwd');
                    if (atrpwd == "true") {
                        self.attr("type", "password");
                    } else {
                        self.attr("type", "text");
                    }
                    self.val("");
                }).focusout(function (e) {
                    if (!self.val()) {
                        self.attr("type", "text");
                        self.val(txt);
                    }
                });
                if (self.val().length > 0) {
                    self.val("");
                }
                else {
                    self.val(txt);
    
                }
    
            });
        }
    };
    //执行
    jQuery(function () {
        JPlaceHolder.init();
    });
    

      

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  • 原文地址:https://www.cnblogs.com/yjung/p/4810582.html
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