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Last change
on this file was a762898, checked in by istevanoska <ilinastevanoska@…>, 5 months ago |
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| [a762898] | 1 | /**
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| 2 | * Checks if `value` is a finite number.
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| 3 | *
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| 4 | * Acts as a type guard for `number` values — returning `true` only when `value`
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| 5 | * is of type `number` and finite (not `Infinity`, `-Infinity`, or `NaN`).
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| 6 | *
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| 7 | * @param {unknown} value The value to check.
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| 8 | * @returns {value is number} Returns `true` if `value` is a finite number, `false` otherwise.
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| 9 | *
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| 10 | * @example
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| 11 | * ```typescript
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| 12 | * const value1 = 100;
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| 13 | * const value2 = Infinity;
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| 14 | * const value3 = '100';
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| 15 | *
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| 16 | * console.log(isFinite(value1)); // true
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| 17 | * console.log(isFinite(value2)); // false
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| 18 | * console.log(isFinite(value3)); // false
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| 19 | *
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| 20 | * if (isFinite(value1)) {
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| 21 | * console.log(value1.toFixed(2));
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| 22 | * }
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| 23 | * ```
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| 24 | */
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| 25 | declare function isFinite(value: unknown): value is number;
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| 26 |
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| 27 | export { isFinite };
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