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eb39fafa4f
includes a (minimal) working wrapper Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
55 lines
933 B
Markdown
55 lines
933 B
Markdown
# Disallow unnecessary escape usage (no-useless-escape)
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Escaping non-special characters in strings, template literals, and regular expressions doesn't have any effect, as demonstrated in the following example:
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```js
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let foo = "hol\a"; // > foo = "hola"
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let bar = `${foo}\!`; // > bar = "hola!"
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let baz = /\:/ // same functionality with /:/
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```
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## Rule Details
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This rule flags escapes that can be safely removed without changing behavior.
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Examples of **incorrect** code for this rule:
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```js
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/*eslint no-useless-escape: "error"*/
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"\'";
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'\"';
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"\#";
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"\e";
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`\"`;
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`\"${foo}\"`;
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`\#{foo}`;
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/\!/;
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/\@/;
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```
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Examples of **correct** code for this rule:
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```js
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/*eslint no-useless-escape: "error"*/
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"\"";
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'\'';
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"\x12";
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"\u00a9";
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"\371";
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"xs\u2111";
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`\``;
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`\${${foo}}`;
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`$\{${foo}}`;
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/\\/g;
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/\t/g;
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/\w\$\*\^\./;
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```
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## When Not To Use It
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If you don't want to be notified about unnecessary escapes, you can safely disable this rule.
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