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Fix README typo #1068

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Mar 14, 2020
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Fix README typo #1068

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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -759,7 +759,7 @@ ioredis **guarantees** that the node you connected to is always a master even af

It's possible to connect to a slave instead of a master by specifying the option `role` with the value of `slave` and ioredis will try to connect to a random slave of the specified master, with the guarantee that the connected node is always a slave. If the current node is promoted to master due to a failover, ioredis will disconnect from it and ask the sentinels for another slave node to connect to.

If you specify the option `preferredSlaves` along with `role: 'slave'` ioredis will attempt to use this value when selecting the slave from the pool of available slaves. The value of `preferredSlaves` should either be a function that accepts an array of avaiable slaves and returns a single result, or an array of slave values priorities by the lowest `prio` value first with a default value of `1`.
If you specify the option `preferredSlaves` along with `role: 'slave'` ioredis will attempt to use this value when selecting the slave from the pool of available slaves. The value of `preferredSlaves` should either be a function that accepts an array of available slaves and returns a single result, or an array of slave values priorities by the lowest `prio` value first with a default value of `1`.

```javascript
// available slaves format
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