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Documentation Index

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If a key does not exist, it is initialized as 0 before performing the operation. An error is returned if the key contains a value of the wrong type or contains a string that can not be represented as integer.

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Arguments

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key
string
required
The key to decrement.
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decrementBy
integer
required
The amount to decrement by.

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Response

The value at the key after the decrementing.
await redis.set("key", 6);
await redis.decrby("key", 4);
// returns 2