eslint/no-useless-concat Suspicious

What it does

Disallow unnecessary concatenation of literals or template literals

Why is this bad?

It’s unnecessary to concatenate two strings together when they could be combined into a single literal.

Examples

Examples of incorrect code for this rule:

var foo = "a" + "b";

var foo = "a" + "b" + "c";

Examples of correct code for this rule:

var foo = "a" + bar;

// when the string concatenation is multiline

var foo = "a"
  + "b"
  + "c";

How to use

To enable this rule in the CLI or using the config file, you can use:

CLI

oxlint --deny no-useless-concat

Config (.oxlintrc.json)

{
  "rules": {
    "no-useless-concat": "error"
  }
}

References

• Rule Source