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eb39fafa4f
includes a (minimal) working wrapper Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
54 lines
1.1 KiB
Markdown
54 lines
1.1 KiB
Markdown
# Suggest using template literals instead of string concatenation. (prefer-template)
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In ES2015 (ES6), we can use template literals instead of string concatenation.
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```js
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var str = "Hello, " + name + "!";
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```
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```js
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/*eslint-env es6*/
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var str = `Hello, ${name}!`;
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```
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## Rule Details
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This rule is aimed to flag usage of `+` operators with strings.
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## Examples
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Examples of **incorrect** code for this rule:
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```js
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/*eslint prefer-template: "error"*/
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var str = "Hello, " + name + "!";
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var str = "Time: " + (12 * 60 * 60 * 1000);
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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 prefer-template: "error"*/
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/*eslint-env es6*/
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var str = "Hello World!";
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var str = `Hello, ${name}!`;
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var str = `Time: ${12 * 60 * 60 * 1000}`;
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// This is reported by `no-useless-concat`.
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var str = "Hello, " + "World!";
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```
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## When Not To Use It
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This rule should not be used in ES3/5 environments.
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In ES2015 (ES6) or later, if you don't want to be notified about string concatenation, you can safely disable this rule.
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## Related Rules
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* [no-useless-concat](no-useless-concat.md)
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* [quotes](quotes.md)
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