Question

我有一个这样的例子。

lis += '<li data-key="' + list[i].key + '">' + list[i].name + ' [' + genLinks(list[i].key, list[i].name) + ']</li>';

但我想知道数据密钥以及如何使用它。

Answer 1

通常当您想要存储有关该元素的更多信息时，您可以使用数据键属性，即

$(function){
alert($('#2').text() +"is a Classic" + $('#2').data("sub") )
})

现在您可以随时在jq

中获取这些值

com.hazelcast.core.OperationTimeoutException: HDMapSizeOperation got rejected before execution due to not starting within the operation-call-timeout of: 100ms. Current time: 2017-05-15 11:41:47.503. Start time: 2017-05-15 11:41:44.189. Total elapsed time: 3314 ms. Invocation{op=com.hazelcast.map.impl.operation.HDMapSizeOperation{serviceName='hz:impl:mapService', identityHash=1941379381, partitionId=0, replicaIndex=0, callId=-24461, invocationTime=1494828707296 (2017-05-15 11:41:47.296), waitTimeout=-1, callTimeout=100, name=blockMap}, tryCount=250, tryPauseMillis=500, invokeCount=11, callTimeoutMillis=100, firstInvocationTimeMs=1494828704189, firstInvocationTime='2017-05-15 11:41:44.189', lastHeartbeatMillis=0, lastHeartbeatTime='1970-01-01 05:30:00.000', target=[192.168.2.204]:5701, pendingResponse={VOID}, backupsAcksExpected=0, backupsAcksReceived=0, connection=null}
at com.hazelcast.spi.impl.operationservice.impl.InvocationFuture.newOperationTimeoutException(InvocationFuture.java:151)
at com.hazelcast.spi.impl.operationservice.impl.InvocationFuture.resolve(InvocationFuture.java:99)
at com.hazelcast.spi.impl.operationservice.impl.InvocationFuture.resolveAndThrowIfException(InvocationFuture.java:75)
at com.hazelcast.spi.impl.AbstractInvocationFuture.get(AbstractInvocationFuture.java:155)
at com.hazelcast.spi.impl.operationservice.impl.InvokeOnPartitions.retryFailedPartitions(InvokeOnPartitions.java:143)
at com.hazelcast.spi.impl.operationservice.impl.InvokeOnPartitions.invoke(InvokeOnPartitions.java:73)
at com.hazelcast.spi.impl.operationservice.impl.OperationServiceImpl.invokeOnAllPartitions(OperationServiceImpl.java:371)
at com.hazelcast.map.impl.proxy.MapProxySupport.size(MapProxySupport.java:628)
at com.hazelcast.map.impl.proxy.MapProxyImpl.size(MapProxyImpl.java:102)
at it.XXXX.tbx.server.MapLoader.run(MapLoader.java:36)

Answer 2

数据属性用于在元素中存储数据，这可以是您想要的任何内容。您可以使用javascript：

使用.dataset检索它

<li id="example" data-example="test123"> </li>

var element = document.getElementById('example');

element.dataset.example // "test123"

希望这有助于你，

什么是html中<li>标签中的数据键

2 个答案: