javascript - TypesScript: unable to read a property of an object even though it's there -


i'm trying create body , send url backend stores content objects. when use const body = json.stringify(content); doesn't read property file.

here service code:

addmessage(content: content) {     console.log("service:", content); // file property in content object sent     const body = json.stringify(content); // file property missing here     console.log("body:", body);     const headers = new headers({'content-type': 'application/json'});     const token = localstorage.getitem('token')         ? '?token=' + localstorage.getitem('token')         : '';     return this.http.post('http://localhost:3000/content' + token, body, {headers: headers})         .map((response: response) => {             const result = response.json();             const newcontent = new content(                 result.obj.name,                 result.obj.user.firstname,                 result.obj._id,                 result.obj.user._id,             );             this.contents.push(newcontent);             return newcontent;         })         .catch((error: response) => {             this.errorservice.handleerror(error.json());             return observable.throw(error.json());         }); }

here's console:

enter image description here

you can see file in content doesn't appear in body. tried doing json.parse(json.stringify(content)); , surprise, content.file undefined. idea could've went wrong?

thank you!

have tried json.stringify(json.parse(content)); ?

first need parse json, , once parsed stringify it.

let me know if helps you! :d


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