noOctalEscape

Diagnostic Category: lint/nursery/noOctalEscape

JavaScript (and super languages)

Since: v1.9.3

Caution

This rule is part of the nursery group.

Sources:

• Same as: no-octal-escape

Disallow octal escape sequences in string literals

As of the ECMAScript 5 specification, octal escape sequences in string literals are deprecated and should not be used. Unicode escape sequences should be used instead.

Examples

Section titled Examples

Invalid

Section titled Invalid

var foo = "Copyright \251";

code-block.js:1:11 lint/nursery/noOctalEscape ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Don’t use octal
  
  > 1 │ var foo = “Copyright \251”;
      │           ^^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Don’t use octal escape sequences: “Copyright \251”
  
  ℹ Use unicode or hexidecimal escape sequences instead.
  

Valid

Section titled Valid

var foo = "Copyright \u00A9";   // unicode

var foo = "Copyright \xA9";     // hexadecimal

Related links

Section titled Related links

• Disable a rule
• Configure the rule fix
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