节点红界面模板如何清除缓存
节点红界面模板如何清除缓存
提问于 2018-08-21 15:15:27
您好，我有一个UI模板节点，如下所示
[{"id":"a5c1aeec.acf41","type":"ui_template","z":"317f5671.321bea","group":"7390bf6e.e7d18","name":"alert","order":0,"width":"","height":"","format":"<meta http-equiv=\"cache-control\" content=\"no-cache\" />\n<meta http-equiv=\"Pragma\" content=\"no-cache\" />\n<meta http-equiv=\"Expires\" content=\"-1\" />\n\n<div></div>\n<script>\n\n(function(scope) {\n scope.$watch('msg', function(msg) {\n alert(msg.payload);\n return msg;\n });\n \n})(scope);\n \n</script>\n\n","storeOutMessages":false,"fwdInMessages":false,"templateScope":"local","x":930,"y":540,"wires":[[]]},{"id":"ea160087.f05fd","type":"inject","z":"317f5671.321bea","name":"","topic":"","payload":"hello","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":704,"y":539,"wires":[["a5c1aeec.acf41"]]},{"id":"7390bf6e.e7d18","type":"ui_group","z":"","name":"info","tab":"3b15c8d0.06c048","order":5,"disp":false,"width":"9","collapse":false},{"id":"3b15c8d0.06c048","type":"ui_tab","z":"","name":"config","icon":"settings","order":4}]当我重新加载页面时，虽然没有传递"msg.payload“给它，但它是使用以前的值执行的。谁可以帮助我如何清除缓存或重新加载这应该不会显示任何警报。
回答 1
Stack Overflow用户
发布于 2018-08-23 04:35:33
您可以检查变量并跳过警报，如果不是这样设置的话：
(function(scope) {
scope.$watch('msg', function(msg) {
if(typeof(window.lastAlert)=="undefined"){
window.lastAlert = msg;
}else{
alert(msg.payload);
}
return msg;
});这在我使用chrome时是有效的。在更新流之后，您可能必须清除浏览器缓存。(chrome中的Ctrl+ F5 )
[{"id":"14e8dc7a.390aa4","type":"ui_template","z":"98c20df4.95abc","group":"d1f187ec.103688","name":"alert","order":0,"width":"","height":"","format":"<meta http-equiv=\"cache-control\" content=\"no-cache\" />\n<meta http-equiv=\"Pragma\" content=\"no-cache\" />\n<meta http-equiv=\"Expires\" content=\"-1\" />\n\n<div></div>\n<script>\n\n(function(scope) {\n scope.$watch('msg', function(msg) {\n if(typeof(window.lastAlert)==\"undefined\"){\n window.lastAlert = msg;\n }else{\n alert(msg.payload);\n }\n return msg;\n });\n})(scope);\n\n</script>\n\n","storeOutMessages":false,"fwdInMessages":false,"templateScope":"local","x":690,"y":360,"wires":[[]]},{"id":"c59c7cc4.0593e","type":"inject","z":"98c20df4.95abc","name":"","topic":"","payload":"hello","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":510,"y":360,"wires":[["14e8dc7a.390aa4"]]},{"id":"d1f187ec.103688","type":"ui_group","z":"","name":"info","tab":"aa1700c2.78e64","order":5,"disp":false,"width":"9","collapse":false},{"id":"aa1700c2.78e64","type":"ui_tab","z":"","name":"config","icon":"settings","order":4}]页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51943454
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