Javascript 是否在提交前后检测表单值的更改？

我需要检测网页在pageload和on page saved之间的任何更改

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是否有此的DOM属性？

如果使用SuiteScript 2.x用户事件脚本，beforeSubmit（scriptContext）和afterSubmit（scriptContext）入口点都提供scriptContext.newRecord和scriptContext.oldRecord。您可以使用这两条记录来收集/比较函数中的值，例如

var newRec = scriptContext.newRecord;
var oldRec = scriptContext.oldRecord;

//specify the specific fields you care about
var desiredKeys = ['fieldId1', 'fieldId2', 'fieldId3', 'fieldId4'];

//for each set of keys compare the values
for (var i=0; i < desiredKeys.length; i++){
  var newValue = newRec.getValue({fieldId: desiredKeys[i]});
  var oldValue = oldRec.getValue({fieldId: desiredKeys[i]});
  if (newValue == oldValue){
    log.debug(desiredKeys[i], 'value did not change');
  } else {
    log.debug(desiredKeys[i], 'value did change from: '+ oldValue +' to: '+ newValue);
  }
}

var newRec=scriptContext.newRecord；
var oldRec=scriptContext.oldRecord；
//指定您关心的特定字段
var desiredKeys=['fieldId1'，'fieldId2'，'fieldId3'，'fieldId4']；
//对于每组关键点，比较值
对于（var i=0；i