noMultiStr

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JavaScript (and super languages)

Summary

Diagnostic Category: lint/nursery/noMultiStr
This rule doesn’t have a fix.
The default severity of this rule is error.
Sources:
- Same as no-multi-str

How to configure

1
{
2
  "linter": {
3
    "rules": {
4
      "nursery": {
5
        "noMultiStr": "error"
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      }
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    }
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  }
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}

Description

Disallow creating multiline strings by escaping newlines.

Escaping newlines to create multiline strings is discouraged because it can lead to subtle errors caused by unexpected whitespace after the backslash.

Examples

Invalid

1
const foo =
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    "Line 1\n\
3
Line 2";

code-block.js:2:5 lint/nursery/noMultiStr ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Escaping newlines to create multiline strings is disallowed.
  
    1 │ const foo =
  > 2 │     “Line 1\n\
      │     ^^^^^^^^^^
  > 3 │ Line 2”;
      │ ^^^^^^^
    4 │

Valid

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const foo = "Line 1\nLine 2";

1
const bar = `Line 1
2
Line 2`;