Merge pull request #38 from YugaByte/ZScoreDocs

[#34] ZSCORE Documentation

docs/content/latest/yedis/api/_index.md

@@ -90,6 +90,7 @@ Command | Description |
 [`ZRANGEBYSCORE`](zrangebyscore/) | Retrieve sorted set entries for a given score range |
 [`ZREM`](zrem/) | Delete a sorted set entry |
 [`ZREVRANGE`](zrevrange/) | Retrieve sorted set entries for given index range ordered from highest to lowest score |
+[`ZSCORE`](zscore/) | Get the score of member at a sorted set key |
 <b> General </b>|
 [`AUTH`](auth/) | Authenticates a client connection to YEDIS API |
 [`CONFIG`](config/) | Not fully supported. Only used to set the required password(s) for YEDIS API |

docs/content/latest/yedis/api/zscore.md

@@ -0,0 +1,54 @@
+---
+title: ZSCORE
+linkTitle: ZSCORE
+description: ZSCORE
+menu:
+  latest:
+    parent: api-yedis
+    weight: 2545
+aliases:
+  - /latest/api/redis/zscore
+  - /latest/api/yedis/zscore
+isTocNested: true
+showAsideToc: true
+---
+
+## Synopsis
+<b>`ZSCORE key member`</b><br>
+Returns the score of the member in the sorted set at key. If member does not exist in the sorted set, 
+or key does not exist, null is returned. If `key` is associated with non sorted set data, 
+an error is returned.
+
+## Return Value
+
+The score of member (a double precision floating point number), represented as string.
+
+## Examples
+
+```sh
+$ ZADD z_key 1.0 v1
+```
+
+```
+(integer) 1
+```
+
+```sh
+$ ZSCORE z_key v1
+```
+
+```
+"1.0"
+```
+
+```sh
+$ ZSCORE z_key v2
+```
+
+```
+(null)
+```
+
+## See Also
+
+[`zadd`](../zadd/), [`zcard`](../zcard/), [`zrange`](../zrange/), [`zrangebyscore`](../zrangebyscore/), [`zrem`](../zrem/), [`zrevrange`](../zrevrange)