tslint 说不允许调用 console.log - 我该如何允许？

Question

I just started using create-react-app with typescript

create-react-app my-app --scripts-version=react-scripts-ts

and the default tslint.json configuration does not allow console.log().

How can I (for now) enable console.log?

The docs for this are at https://palantir.github.io/tslint/rules/no-console/ . But they don't say where to put this line:

    "no-console": [true, "log", "error"]

I searched and found this tslint.json configuration file syntax , so I tried this:

"rules": {
    "no-console": [true, "warning"]
}

In an attempt to get log messages that would just be warnings. But that didn't work.

I've commented out the few console.log() lines I have but will want to be able to do this in the future.

Answer 1

Add // tslint:disable-next-line:no-console in the line right before your calls to console.log to prevent the error message only once.

If you want to disable the rule entirely add the following to your tslint.json (most likely in your root folder):

{
    "rules": {
        "no-console": false
    }
}

Answer 2

For those of you coming here with a mixed codebase of javascript and typescript.

You may need to define the 'no-console' option in jsRules, jslints rules object for javascript files, ie there are separate rules objects for javascript and typescript.

//tslint.json

{
  "extends": ["tslint:recommended", "tslint-react", "tslint-config-prettier"], //Example... 
  "rules": {
    "no-console": false //Disable for typescript
  },
  "jsRules": {
    "no-console": false //Disable for javascript
  }
}

Answer 3

Add the following to your tslint.json

{
   "rules": {
      "no-console": {
         "severity": "warning",
      } 
   }
}

Answer 4

This is the correct syntax to define the no-console rule (or any other rule for that matter) but only with a warning rather than an error (obviously change the options to whatever you want)

"no-console": {
    "severity": "warning",
    "options": [
        "log",
        "error",
        "debug",
        "info",
        "time",
        "timeEnd",
        "trace"
    ]
},

Answer 5

The way I handle tslint "no-console" rule is per file which I have found is convenient and isolated in the development phase.

As soon as I need to use the first console.log(); Visual Studio Code shows the option to add:

// tslint:disable-next-line: no-console

console.log();

So here I just delete "-next-line" and this command will cover the entire file.

// tslint:disable: no-console

console.log();

I hope it helps as an alternative to disable the feature for the entire app.

RON

Answer 6

如果// tslint:disable-next-line:no-console不起作用尝试// eslint:disable-next-line:no-console

Answer 7

in typeScript version 3 update tslint.json under key rule like below:

"no-console": [
    true,
    "debug",
    "time",
    "timeEnd",
    "trace"
],

this way you just specify debug, time, timeEnd, trace to be not used, if in your default tslint "info" is in the list just remove it.

Answer 8

只是绕过 linter 的肮脏技巧：

const { log } = console; log('Hello linter'); // TODO: remove

Answer 9

According to the docs: https://eslint.org/docs/user-guide/getting-started#configuration

• "off" or 0 - turn the rule off
• "warn" or 1 - turn the rule on as a warning (doesn't affect exit code)
• "error" or 2 - turn the rule on as an error (exit code will be 1)

By the way, your correct setup would be

{
  "rules": {
    "no-console": false
  }
}

Answer 10

  {
    "extends": ["tslint:recommended", "tslint-react", "tslint-config-prettier"],
    "linterOptions": {
        "exclude": [
            "config/**/*.js",
            "node_modules/**/*.ts",
            "coverage/lcov-report/*.js"
        ]
    },
    "rules": {
        "no-console": false
    },
    "jsRules": {
        "no-console": false
    }
 }

Answer 11

The Syntax changed!

For the next-line exception there needs to be a space before no-console: // eslint-disable-next-line no-console .

For the file exception, it also has to be inside of the Multi-line comment syntax: /* eslint-disable no-console */ .

It also might depend on certain configurations.

Answer 12

对于那些来这里寻找一种方法来保持console.log被禁止，但允许使用console.time和console.timeEnd等有用方法的人，例如，您可以在 .eslintrc 规则中全局显式定义它：

 "no-console": ["error", {"allow": ["time", "timeEnd", "trace"]}],