testBit

testBit(integer x, integer bit) → boolean set

Returns true if the bit at position bit of the number x is 1, and false otherwise. Position 0 is the least significant bit. The function also works on big integers.

testBit(8, 3)   // true  : 8 = 1000, bit 3 is 1
testBit(8, 0)   // false : bit 0 is 0
testBit(13, 2)  // true  : 13 = 1101, bit 2 is 1

Math.testBit(8, 3)  // true  : 8 = 1000, bit 3 is 1
Math.testBit(8, 0)  // false : bit 0 is 0
Math.testBit(13, 2) // true  : 13 = 1101, bit 2 is 1

Math.testBit(8, 3)  # True  : 8 = 1000, bit 3 is 1
Math.testBit(8, 0)  # False : bit 0 is 0
Math.testBit(13, 2) # True  : 13 = 1101, bit 2 is 1

Parameters

• x: The integer to test.
• bit: The position of the bit to test, 0 being the least significant bit.

Return

• set: true if the bit at position bit is 1, false otherwise.

Note

• Available from LeekScript 4. See also setBit, bitLength and bitCount.