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18 lines
409 B
TypeScript
18 lines
409 B
TypeScript
/**
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* Determines if the number is a power of 2
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* @param n The number to check.
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*/
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export function isPowerOfTwo(n: number): boolean {
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if (isNaN(n)) {
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return false;
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}
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if (n === 0) {
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return false;
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}
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// Disabiling the bitwise rule because it's honestly the most effecient way to check for this.
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// tslint:disable-next-line:no-bitwise
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return (n & (n - 1)) === 0;
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}
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