Typescript 如何调用delete方法来运行索引的所有实例

我有一种方法可以从我的ionic 4应用程序中删除文件。我可以运行deleteFile（）方法来删除单个文件。我试图使用forEach方法来运行删除所有文件的过程。但在第一次删除后失败

html

控制台日志

文件清单

Documents [
 {
   "name":"UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png",
   "path":"ionic://localhost/_app_file_/var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png",
   "filePath":"file:///var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png"
 },
 {
   "name":"UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf",
   "path":"ionic://localhost/_app_file_/var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf",
   "filePath":"file:///var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf"
 }
]


arr  
  UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png,
  UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf

  filtered UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf

  correctPath file:///var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/

arr  
 UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png,UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf

 filtered UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png

 correctPath file:///var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/

 imgEntry.name UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png
 imgEntry.name UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf

工作代码

deleteFile(imgEntry, position): Promise<any> {
  console.log("deleteFile selected");
  let request = this.storage.get(this.STORAGE_KEY_DOC);
  console.log("position", position);
  request.then(documents => {
    let arr = JSON.parse(documents);

    this.documents.splice(position);
  // let filtered = arr.filter(name => name != imgEntry.name);

    let correctPath = imgEntry.filePath.substr(0, imgEntry.filePath.lastIndexOf('/') + 1);

    this.file.removeFile(correctPath,  imgEntry.name).then(res => {
      let resp = JSON.stringify(res);
      console.log("resp", resp);
    });

    let removeDB = this.storage.set(this.STORAGE_KEY_DOC, JSON.stringify(this.documents));
  }).then(( )=> {
  });
  return request;
} 

deleteFile（imgEntry，position）：承诺{
log（“选择删除文件”）；
让request=this.storage.get（this.storage\u KEY\u DOC）；
控制台日志（“位置”，位置）；
请求。然后（文档=>{
让arr=JSON.parse（文档）；
本文件拼接（位置）；
//let filtered=arr.filter（name=>name！=imgEntry.name）；
让correctPath=imgEntry.filePath.substr（0，imgEntry.filePath.lastIndexOf（'/'）+1）；
this.file.removeFile（correctPath，imgEntry.name）。然后（res=>{
让resp=JSON.stringify（res）；
控制台日志（“resp”，resp）；
});
让removeDB=this.storage.set（this.storage_KEY_DOC，JSON.stringify（this.documents））；
}).然后（（）=>{
});
返回请求；
} 

它是“失败的”，因为您在迭代

文档时正在更改
数组

这基本上就是你所拥有的：


var-arr=[1,2,3,4]；
arr.forEach（（v，i）=>{
阵列拼接（i，1）；
})
控制台日志（arr）我在这一点上有点不知所措，可能需要一些帮助。然后和foreach之后的拼接。我会在大约两个月后提供悬赏days@ThomasDegroot不需要为此提供悬赏奖励，最好将其保存起来，以备将来遇到困难时使用-我将在大约11小时内完成工作后，为您更新我的答案，并提供一个实现示例。谢谢您的帮助。我真的很感激它在第一个医生时仍然失败。我已经将日志包括到文档列表和您的控制台日志中。再次感谢您在这个问题上的帮助，我正在做一些测试，它在这个.file.removeFile上看起来失败了。似乎通过阵列很好
Documents [
 {
   "name":"UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png",
   "path":"ionic://localhost/_app_file_/var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png",
   "filePath":"file:///var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png"
 },
 {
   "name":"UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf",
   "path":"ionic://localhost/_app_file_/var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf",
   "filePath":"file:///var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf"
 }
]


arr  
  UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png,
  UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf

  filtered UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf

  correctPath file:///var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/

arr  
 UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png,UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf

 filtered UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png

 correctPath file:///var/mobile/Containers/Data/Application/F8772763-A219-407D-92CD-EF5178F0EA9C/Library/NoCloud/

 imgEntry.name UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_icon-144x144.png
 imgEntry.name UUID_5deb6fae-4d84-41ac-8157-01f9c68e73c5_answerID_155_originalName_44198511-How-to-Fix-FAL-Rifle-Brass-Strikes.pdf

deleteFile(imgEntry, position): Promise<any> {
  console.log("deleteFile selected");
  let request = this.storage.get(this.STORAGE_KEY_DOC);
  console.log("position", position);
  request.then(documents => {
    let arr = JSON.parse(documents);

    this.documents.splice(position);
  // let filtered = arr.filter(name => name != imgEntry.name);

    let correctPath = imgEntry.filePath.substr(0, imgEntry.filePath.lastIndexOf('/') + 1);

    this.file.removeFile(correctPath,  imgEntry.name).then(res => {
      let resp = JSON.stringify(res);
      console.log("resp", resp);
    });

    let removeDB = this.storage.set(this.STORAGE_KEY_DOC, JSON.stringify(this.documents));
  }).then(( )=> {
  });
  return request;
}