console.log not working inside nativescript

[davidsekielyk]

Hi, I'm new using nativescript and I just want to try console.log () but it does not show me anything in the terminal.
I run the program using tns run android using a USB to my phone
Other functions if I run but if I want to show something on console not.
Show me only

Successfully transferred login.js.
Refreshing application ...
Successfully synced application org.nativescript.Groceries on device 3AMCL16128044910.

And it shows nothing more

This is my code at login.js
Exports.loaded = function () {
     Console.log ("hello");
};
And in login.xml
The Page UI is so Page loaded = "loaded"

[priyangamani]

console.log("hello");

[dtopuzov]

Hi @davidsekielyk

It looks fine with this files:

login.js:

exports.loaded = function () {
     console.log("hello");
};

login.xml

<Page xmlns="http://schemas.nativescript.org/tns.xsd" loaded="loaded">
</Page>

app.js

var application = require("application");
application.start({ moduleName: "login" });

I think two might be the problems:

• Typo in your code
• Problem with specific android device (we can't get device log)

Can you please test on Android emulator?
If it is fine on Android emulator, then please specify your mobile device details (software and hardware).

[davidsekielyk]

@priyangamani I used lowercase in console.log and exports.loaded, sorry for wrong copy in question

[davidsekielyk]

@dtopuzov I tried to replace my code for which you put me as an example but it does not work, in my case I have this files

login.xml

<Page loaded="loaded"> </Page>

login.js

exports.loaded = function() { console.log("hello"); };

###app.js
var applicationModule = require("application"); applicationModule.start({ moduleName: "views/login/login" });

It does not throw me any errors and the app runs well on my cell phone but in console it still does not show me anything

The android emulator I could not make it run because I did not recognize the device and when it proves with the cell phone then I went with that

[kveretennicov]

I saw something similar. I followed the official tutorial on Ubuntu 16 LTS, using Android emulator, in livesync mode. I did not get "Hello World" in the output of tns run android.

However, when I ran tns device log in the second terminal, then "Hello World" began to appear in the output of tns device log and in the output of tns run android. After that console.log kept working even if I stopped tns device log, restarted tns run android or restarted the emulator.

So running tns device log once for the device may be the workaround.

[Gamadril]

XCode 9.0, MacOS High Sierra, iOS simulator test of Hello World template app. console.log does not work.

[etabakov]

@Gamadril This is a known issue and it will be fixed in the next minor version of {N}, which is coming very soon. You can track the progress in this issue: #3141

[smasala]

For others: instead of using the tns run android command, use tns debug android.

[des-esseintes]

stuck with the same issue
steps to reproduce:

• create new project (tns create whatever);
• add console.log("something") to main-page.js
• tns android run -- the "something" is here, ok
• tns plugin update; tns update
• tns android run -- nothing! "something" is gone

[des-esseintes]

after updating everything and doing clean build i could see the logs again, great

[isawk]

Issue appears to still exist, when using console.debug

Version/Environment Details

nativescript has 5.3.1
tns-core-modules has 5.3.1
tns-android has 5.3.1
tns-ios has 5.3.1

Emulator
Name: NexusDevice
...
Target: Google APIs (Google Inc.)
Based on: Android 6.0 (Marshmallow) Tag/ABI: google_apis/x86

JS: Angular is running in the development mode. Call enableProdMode() to enable the production mode.
JS: console.debug is not a function
JS: ERROR Error: Uncaught (in promise): TypeError: console.debug is not a function
JS: TypeError: console.debug is not a function

[Fatme]

@isawk,

NativeScript does not support console.debug function. The full list of supported functions from console module can be found here.

[isawk]

@Fatme Awesome thanks, worked in iOS, so didn't think it would be a problem on Android. Noted though.

[GetCurious]

hmmm... i got nothing on the Device Logs from my Oppo f11 pro.
doing tutorial on the web editor

{
  "@angular/animations": "8.0.3",
  "@angular/common": "8.0.3",
  "@angular/compiler": "8.0.3",
  "@angular/core": "8.0.3",
  "@angular/forms": "8.0.3",
  "@angular/http": "8.0.0-beta.10",
  "@angular/platform-browser": "8.0.3",
  "@angular/platform-browser-dynamic": "8.0.3",
  "@angular/router": "8.0.3",
  "@progress-nativechat/nativescript-nativechat": "2.0.4",
  "kinvey-nativescript-sdk": "4.2.1",
  "nativescript-accelerometer": "2.0.1",
  "nativescript-angular": "8.0.2",
  "nativescript-background-http": "3.4.0",
  "nativescript-camera": "4.5.0",
  "nativescript-geolocation": "5.1.0",
  "nativescript-image": "2.1.4",
  "nativescript-imagepicker": "6.2.0",
  "nativescript-intl": "3.0.0",
  "nativescript-iqkeyboardmanager": "1.5.1",
  "nativescript-social-share": "1.5.2",
  "nativescript-theme-core": "1.0.6",
  "nativescript-ui-autocomplete": "5.0.0",
  "nativescript-ui-calendar": "5.0.0",
  "nativescript-ui-chart": "5.0.0",
  "nativescript-ui-dataform": "5.0.0",
  "nativescript-ui-gauge": "5.0.0",
  "nativescript-ui-listview": "7.0.0",
  "nativescript-ui-sidedrawer": "7.0.0",
  "nativescript-vue": "2.3.0",
  "reflect-metadata": "0.1.13",
  "rxjs": "6.5.2",
  "rxjs-compat": "6.5.2",
  "tns-core-modules": "6.0.1",
  "zone.js": "0.9.1"
}```

[JimLynchCodes]

this is still happening for me- console.log statements don't show in terminal when running with ns run ios

[JimLynchCodes]

With the command ns debug ios --watch I can see the log statements 👍