What is .d.ts file .

First of all you should have some idea on Javascript and Typescript as well.
 So in this text  ".d.ts"
 "d" stands for declarations and "ts" is for typescript file extensions .

So here the some points on .d.ts file

1. Basically as per the naming conventions its a declarations file.
2. It can be created from a typescript file or from a Javascript file as well.
3. It act as a interface which contains only the declarations.
4. But conceptually we can say that it is just like a header file in C/C++ . when the third party user will use that file he can have only access to the exported  functions of the declarations file  not to the function  implementations.
5 . This file is get generated while tsc compiler compiled the typescript file and it keppes all the declarations in the .d.ts file and export those .

If you want to know more about typescript then you can go through this like

https://www.typescriptlang.org/docs/handbook/classes.html.

If you want to know about typescript please visit my blogpost https://whymysolutions.blogspot.com/2017/09/what-is-typescript.html

Comments

Post a Comment

Popular posts from this blog

Unable to load one or more breakpoints in Visual studio.

Image
Those who are working on Visual studio IDE they might have faced this type of error while opening any existing project . Sometimes by rebuild the solution or removing the break points the issue is get resolved .  So this problem/ issue is caused due to various reason but among those reason one of them is worked for me .  Here is my solutions. It worked for me . Please follow my steps. Step 1:    Please go to the physical folders/files of your solution . Just right click of the solution and from the options choose "Open Folder is File Explorer". Please check the attached Image. Please click on Image to view it properly Step 2:     Then you will see the files like this. Then please check the if the "Hide Items" checkbox is checked or not . If not checked please check that one. Then you will   see .vs folder .                               Please click on Im...
Read more

The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

I was trying to upload a file in client side and sending back the data from the client to Web API controller by angular service . Step 1 : I was doing it by. (It was bot the complete code )   function saveFile(file, cb) {     var readerObj = new FileReader();     readerObj .readAsDataURL(file);     readerObj .onload = function () {         savedFileDataAsBase64Format(readerObj .result, file.name,cb);     };     readerObj .onerror = function (error) {         alert("Error in uploading the file.");     }; Step 2 :     This is my Web api controller action method.        [HttpPost]         [Route("api/FileInput/SaveBase64FileData/{fileName}")]         public void SaveBase64FileData(string fileName, [FromBody]string fileData)         {     ...
Read more

The transaction is aborted or Failure while attempting to promote transaction.

This error is generally produced while you working on the  Linq query with Entity framework and there was some other system configurations like Visual studio 2015. Entity framework version 4. C# 4.5 But while I checked the Inner exception I got the following message  "There is already an open DataReader associated with this Command which must be closed first" So in my case there was some WCF services and from the WCF services I was extracting the data by Linq query . This was code  Code: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 using (TransactionScope scope = new TransactionScope()) { using (CentralisedData_DataDataContext db = new CentralisedData_DataDataContext()) { // Some code was there } db.SubmitChanges(); ...
Read more