WebStorm - Using Spread Operator Returns: error TS2488: Type '{}' must have a '[Symbol.iterator]()' method...
I am experiencing this annoying TypeScript error:
error TS2488: Type '{}' must have a 'Symbol.iterator' method that returns an iterator.
As you can see in my code I am using the spread operator. After some researches I have found that I had to update mytsconfig.json with "target": "es6" but nothing changed. What am I missing?
Function
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files).reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
TS CONFIG
{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"allowSyntheticDefaultImports": true,
"target": "es6",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2017",
"dom"
]
}
}
TS CONFIG APP (if it helps)
{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/app",
"module": "es2015",
"types": ,
"moduleResolution": "node",
"target": "es6",
},
"exclude": [
"src/test.ts",
"**/*.spec.ts"
]
}
angular typescript ecmascript-6 webstorm edited Nov 27 '18 at 19:09
LazyOne
108k21242264
asked Nov 27 '18 at 9:08
Nad GNad G
127312
add a comment |
I am experiencing this annoying TypeScript error:
error TS2488: Type '{}' must have a 'Symbol.iterator' method that returns an iterator.
As you can see in my code I am using the spread operator. After some researches I have found that I had to update mytsconfig.json with "target": "es6" but nothing changed. What am I missing?
Function
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files).reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
TS CONFIG
{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"allowSyntheticDefaultImports": true,
"target": "es6",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2017",
"dom"
]
}
}
TS CONFIG APP (if it helps)
{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/app",
"module": "es2015",
"types": ,
"moduleResolution": "node",
"target": "es6",
},
"exclude": [
"src/test.ts",
"**/*.spec.ts"
]
}
edited Nov 27 '18 at 19:09
LazyOne
108k21242264
asked Nov 27 '18 at 9:08
Nad GNad G
127312
Can't reproduce your issue with thetsconfigyou provided
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:22
So you mean that the problem is not in my tsconfig? Maybe is Webstorm that I am using?
– Nad G
Nov 27 '18 at 9:23
Not sure where the problem is .. I would try to run the compiler outside the IDE to see if it's an IDE problem. I used your tsconfigs in VSCode, it seems to work
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:26
Ok, I have updated the question indicating that it may caused by Webstorm. I'll try your suggestion too, thanks
– Nad G
Nov 27 '18 at 9:30
add a comment |
I am experiencing this annoying TypeScript error:
error TS2488: Type '{}' must have a 'Symbol.iterator' method that returns an iterator.
As you can see in my code I am using the spread operator. After some researches I have found that I had to update mytsconfig.json with "target": "es6" but nothing changed. What am I missing?
Function
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files).reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
TS CONFIG
{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"allowSyntheticDefaultImports": true,
"target": "es6",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2017",
"dom"
]
}
}
TS CONFIG APP (if it helps)
{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/app",
"module": "es2015",
"types": ,
"moduleResolution": "node",
"target": "es6",
},
"exclude": [
"src/test.ts",
"**/*.spec.ts"
]
}
edited Nov 27 '18 at 19:09
LazyOne
108k21242264
asked Nov 27 '18 at 9:08
Nad GNad G
127312
I am experiencing this annoying TypeScript error:
error TS2488: Type '{}' must have a 'Symbol.iterator' method that returns an iterator.
As you can see in my code I am using the spread operator. After some researches I have found that I had to update mytsconfig.json with "target": "es6" but nothing changed. What am I missing?
Function
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files).reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
TS CONFIG
{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"allowSyntheticDefaultImports": true,
"target": "es6",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2017",
"dom"
]
}
}
TS CONFIG APP (if it helps)
{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/app",
"module": "es2015",
"types": ,
"moduleResolution": "node",
"target": "es6",
},
"exclude": [
"src/test.ts",
"**/*.spec.ts"
]
}
edited Nov 27 '18 at 19:09
LazyOne
108k21242264
asked Nov 27 '18 at 9:08
Nad GNad G
127312
edited Nov 27 '18 at 19:09
LazyOne
108k21242264
asked Nov 27 '18 at 9:08
Nad GNad G
127312
edited Nov 27 '18 at 19:09
LazyOne
108k21242264
edited Nov 27 '18 at 19:09
LazyOne
108k21242264
edited Nov 27 '18 at 19:09
LazyOne
108k21242264
108k21242264
asked Nov 27 '18 at 9:08
Nad GNad G
127312
asked Nov 27 '18 at 9:08
Nad GNad G
127312
asked Nov 27 '18 at 9:08
Nad GNad G
127312
127312
Can't reproduce your issue with thetsconfigyou provided
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:22
So you mean that the problem is not in my tsconfig? Maybe is Webstorm that I am using?
– Nad G
Nov 27 '18 at 9:23
Not sure where the problem is .. I would try to run the compiler outside the IDE to see if it's an IDE problem. I used your tsconfigs in VSCode, it seems to work
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:26
Ok, I have updated the question indicating that it may caused by Webstorm. I'll try your suggestion too, thanks
– Nad G
Nov 27 '18 at 9:30
add a comment |
Can't reproduce your issue with thetsconfigyou provided
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:22
So you mean that the problem is not in my tsconfig? Maybe is Webstorm that I am using?
– Nad G
Nov 27 '18 at 9:23
Not sure where the problem is .. I would try to run the compiler outside the IDE to see if it's an IDE problem. I used your tsconfigs in VSCode, it seems to work
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:26
Ok, I have updated the question indicating that it may caused by Webstorm. I'll try your suggestion too, thanks
– Nad G
Nov 27 '18 at 9:30
Can't reproduce your issue with the
tsconfig you provided– Titian Cernicova-Dragomir
Nov 27 '18 at 9:22
Can't reproduce your issue with the
tsconfig you provided– Titian Cernicova-Dragomir
Nov 27 '18 at 9:22
So you mean that the problem is not in my tsconfig? Maybe is Webstorm that I am using?
– Nad G
Nov 27 '18 at 9:23
So you mean that the problem is not in my tsconfig? Maybe is Webstorm that I am using?
– Nad G
Nov 27 '18 at 9:23
Not sure where the problem is .. I would try to run the compiler outside the IDE to see if it's an IDE problem. I used your tsconfigs in VSCode, it seems to work
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:26
Not sure where the problem is .. I would try to run the compiler outside the IDE to see if it's an IDE problem. I used your tsconfigs in VSCode, it seems to work
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:26
Ok, I have updated the question indicating that it may caused by Webstorm. I'll try your suggestion too, thanks
– Nad G
Nov 27 '18 at 9:30
Ok, I have updated the question indicating that it may caused by Webstorm. I'll try your suggestion too, thanks
– Nad G
Nov 27 '18 at 9:30
add a comment |
1 Answer
1
active
oldest
votes
I fixed the issue. I noticed that in 'lib' tsconfig.json file "es2015" wasn't indicated (as suggested inthis answer), but that, for some reason, didn't change anything.
So I went up to the function 'formatFileName(e)' and assigned to this.test the array of files, and just after this declaration I applied the reduce function to do my operations.
FIXED FUNCTION
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files)
this.test.reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
answered Nov 27 '18 at 10:14
Nad GNad G
127312
I hope you're assigning the return value ofreduce()to something..
– Patrick Roberts
Nov 27 '18 at 19:41
@PatrickRoberts yes, of course xD
– Nad G
Nov 28 '18 at 8:28
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I fixed the issue. I noticed that in 'lib' tsconfig.json file "es2015" wasn't indicated (as suggested inthis answer), but that, for some reason, didn't change anything.
So I went up to the function 'formatFileName(e)' and assigned to this.test the array of files, and just after this declaration I applied the reduce function to do my operations.
FIXED FUNCTION
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files)
this.test.reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
answered Nov 27 '18 at 10:14
Nad GNad G
127312
I hope you're assigning the return value ofreduce()to something..
– Patrick Roberts
Nov 27 '18 at 19:41
@PatrickRoberts yes, of course xD
– Nad G
Nov 28 '18 at 8:28
add a comment |
I fixed the issue. I noticed that in 'lib' tsconfig.json file "es2015" wasn't indicated (as suggested inthis answer), but that, for some reason, didn't change anything.
So I went up to the function 'formatFileName(e)' and assigned to this.test the array of files, and just after this declaration I applied the reduce function to do my operations.
FIXED FUNCTION
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files)
this.test.reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
answered Nov 27 '18 at 10:14
Nad GNad G
127312
I hope you're assigning the return value ofreduce()to something..
– Patrick Roberts
Nov 27 '18 at 19:41
@PatrickRoberts yes, of course xD
– Nad G
Nov 28 '18 at 8:28
add a comment |
I fixed the issue. I noticed that in 'lib' tsconfig.json file "es2015" wasn't indicated (as suggested inthis answer), but that, for some reason, didn't change anything.
So I went up to the function 'formatFileName(e)' and assigned to this.test the array of files, and just after this declaration I applied the reduce function to do my operations.
FIXED FUNCTION
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files)
this.test.reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
answered Nov 27 '18 at 10:14
Nad GNad G
127312
I fixed the issue. I noticed that in 'lib' tsconfig.json file "es2015" wasn't indicated (as suggested inthis answer), but that, for some reason, didn't change anything.
So I went up to the function 'formatFileName(e)' and assigned to this.test the array of files, and just after this declaration I applied the reduce function to do my operations.
FIXED FUNCTION
formatFileName(e) {
let files = e.target.files;
this.test = Array.from(files)
this.test.reduce((acc, cur) => [
...acc, {
name: cur.name.replace(/^.*\/, "")
}
], )
}
answered Nov 27 '18 at 10:14
Nad GNad G
127312
answered Nov 27 '18 at 10:14
Nad GNad G
127312
answered Nov 27 '18 at 10:14
Nad GNad G
127312
answered Nov 27 '18 at 10:14
Nad GNad G
127312
127312
I hope you're assigning the return value ofreduce()to something..
– Patrick Roberts
Nov 27 '18 at 19:41
@PatrickRoberts yes, of course xD
– Nad G
Nov 28 '18 at 8:28
add a comment |
I hope you're assigning the return value ofreduce()to something..
– Patrick Roberts
Nov 27 '18 at 19:41
@PatrickRoberts yes, of course xD
– Nad G
Nov 28 '18 at 8:28
I hope you're assigning the return value of
reduce() to something..– Patrick Roberts
Nov 27 '18 at 19:41
I hope you're assigning the return value of
reduce() to something..– Patrick Roberts
Nov 27 '18 at 19:41
@PatrickRoberts yes, of course xD
– Nad G
Nov 28 '18 at 8:28
@PatrickRoberts yes, of course xD
– Nad G
Nov 28 '18 at 8:28
add a comment |
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Can't reproduce your issue with the
tsconfigyou provided– Titian Cernicova-Dragomir
Nov 27 '18 at 9:22
So you mean that the problem is not in my tsconfig? Maybe is Webstorm that I am using?
– Nad G
Nov 27 '18 at 9:23
Not sure where the problem is .. I would try to run the compiler outside the IDE to see if it's an IDE problem. I used your tsconfigs in VSCode, it seems to work
– Titian Cernicova-Dragomir
Nov 27 '18 at 9:26
Ok, I have updated the question indicating that it may caused by Webstorm. I'll try your suggestion too, thanks
– Nad G
Nov 27 '18 at 9:30