'tslint one line rule misplaced 'else'

I have such config in tslint.json for one line rule

one-line": [true,
      "check-open-brace",
      "check-catch",
      "check-else",
      "check-whitespace"
    ],

When I have code lines like that:

if(SomethingTrue) { next("a"); }
else { next("b"); }

I've got warning:

(one-line) file.ts[17, 9]: misplaced 'else'

Why that is happens? Is it bad practice to have one line else?



Solution 1:[1]

if (condition is true) {
  // do something;
}
else {
  // do something else;
}

Notice that else comes next to }

if (condition is true) {
  // do something;
} else {
  // do something else;
}

Solution 2:[2]

According to the tslint docs the problem is that when "check-else" is specified under one-line the else must be on the same line as the closing brace for your if.

So in your case instead of:

if(SomethingTrue) { next("a"); }
else { next("b"); }

Use this format:

if(SomethingTrue) { next("a"); } else { next("b"); }

Solution 3:[3]

if (condition) {
  // Your Code
} else {
  // Your Code
}

End of If and start of else should be on the same line.

Solution 4:[4]

Make sure your else if or else starts on the same line where you closed previous condition (}).

if (some condition) {
        // logic to be executed
    } else if (some additional condition) {
        // logic to be executed
    } else {
        // logic to be executed
    }

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Jeffrey Roosendaal
Solution 2 zejuel
Solution 3 Jeffrey Roosendaal
Solution 4 Pranay Bunari