dome操作

检测类名

hasClass (ele, name) {
    return ele.className.match(new RegExp('(\\s|^)' + name + '(\\s|$)'));
}

添加类名

addClass (ele, name) {
    if (!this.hasClass(ele, name)) ele.className += " " + name;
}

删除类名

removeClass (ele, name) {
    if (this.hasClass(ele, name)) {
        var reg = new RegExp('(\\s|^)' + name + '(\\s|$)');
        ele.className = ele.className.replace(reg, '');
    }
}

替换类名

replaceClass (ele, newName, oldName) {
    this.removeClass(ele, oldName);
    this.addClass(ele, newName);
}

获取兄弟节点

siblings (ele) {
    console.log(ele.parentNode)
    var chid = ele.parentNode.children,eleMatch = []; 
    for(var i = 0, len = chid.length; i < len; i ++){ 
        if(chid[i] != ele){ 
            eleMatch.push(chid[i]); 
        } 
    } 
    return eleMatch;
}

获取行间样式属性

getByStyle (obj,name){
    if(obj.currentStyle){
        return  obj.currentStyle[name];
    }else{
        return  getComputedStyle(obj,false)[name];
    }
}