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eb39fafa4f
includes a (minimal) working wrapper Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
# Disallow Floating Decimals (no-floating-decimal)
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Float values in JavaScript contain a decimal point, and there is no requirement that the decimal point be preceded or followed by a number. For example, the following are all valid JavaScript numbers:
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```js
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var num = .5;
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var num = 2.;
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var num = -.7;
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```
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Although not a syntax error, this format for numbers can make it difficult to distinguish between true decimal numbers and the dot operator. For this reason, some recommend that you should always include a number before and after a decimal point to make it clear the intent is to create a decimal number.
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## Rule Details
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This rule is aimed at eliminating floating decimal points and will warn whenever a numeric value has a decimal point but is missing a number either before or after it.
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Examples of **incorrect** code for this rule:
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```js
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/*eslint no-floating-decimal: "error"*/
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var num = .5;
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var num = 2.;
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var num = -.7;
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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-floating-decimal: "error"*/
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var num = 0.5;
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var num = 2.0;
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var num = -0.7;
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```
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## When Not To Use It
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If you aren't concerned about misinterpreting floating decimal point values, then you can safely turn this rule off.
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## Compatibility
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* **JSHint**: W008, W047
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