Introduction to layui underlying methods-Layui Tutorial-php.cn

Introduction to layui underlying methods

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Release： 2019-12-21 17:29:35

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Introduction to layui underlying methods

Layui modular page usage:

Load modules as needed

//引入js，css文件跳过，看文档

//在页面中，如同编写JavaScript一样
<script>
	layui.use([&#39;layer&#39;,&#39;form&#39;],function(){//需要加载的模块
        var layer = layui.layer,
        form = layui.form;//初始化模块变量
        
        layer.msg(&#39;Hi!&#39;)；//调用该模块的方法
	})
</script>

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Load all modules at once

<script>
	;!function(){
      var layer = layui.layer
      ,form = layui.form;//初始化模块变量

      layer.msg(&#39;Hello World&#39;);
    }();
</script>

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Self-written module

//js文件
layui.define([&#39;layer&#39;],function(exports){//自写模块需要调用的layui模块
    var layer = layui.layer;//初始化模块变量
    
    layer.msg(&#39;Hi!&#39;);
    
    exports(&#39;index&#39;,{})//导出自写模块，index为导出名，use的时候名字要和导出一致
})

//use时注意需要设定模块所在目录
<script>
	layui.config({
        base:&#39;/res/js/modules/&#39; //自建模块所在目录
	}).use(&#39;index&#39;,function(){//加载入口
        
	});
</script>

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Local storage operation

layui.data(&#39;test&#39;,//test表名
    {//对象
        key:&#39;user_name&#39;,//键值对
        value:&#39;用户1&#39;
    }
)

//删除
layui。data(&#39;test&#39;,{
    key:&#39;user_name&#39;,//需要删除的键
    remove:true//删除
})

//查
var local = layui.data(&#39;test&#39;);
console.info(local.user_name);

//根据删除的方法，我暂时认为，如果需要插入多个键值对，需要使用对象数组，而删除多个键值对，则未知了，因为没实际操作，因为本地存储其实不怎么会用这个，接入后端后大多用session或者redis

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Various underlying methods that may not be used in practice

layui.device()//获取设备信息
layui.cache()//获得缓存
layui.extend(options)//拓展别名，给一个模块设置别名
layui.each(obj,fn)//对象（array，object，dom）遍历，可取代for
layui.getStyle(node,name) //获得dom节点的style属性值，如document.body,&#39;font-size&#39;
layui.img(url,callback,error)//图片预加载，可设置加载失败显示默认图从而避免图片加载失败没图的尴尬
layui.router()//获得路由
layui.hint()//向控制台输出异常，目前只能error，layui.hint().error(&#39;error&#39;)
layui.stope(e)//阻止事件冒泡
layui.onevent(modName,events,callback)//自定义模块事件
layui.event(modName,events,params)//执行自定义事件
layui.factory(modName)//获取模块定义时的回调函数

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