INCRBYFLOAT
<p>
INCRBYFLOAT commands are limited to double precision floating point values.
<p>
Note: this is actually a string operation, that is, in Redis there are not "double" types.
Simply the string stored at the key is parsed as a base double precision floating point value,
incremented, and then converted back as a string. There is no DECRYBYFLOAT but providing a
negative value will work as expected.
<p>
Time complexity: O(1)
@param key
@param increment
@return Double reply, this commands will reply with the new value of key after the increment.
INCRBYFLOAT <p> INCRBYFLOAT commands are limited to double precision floating point values. <p> Note: this is actually a string operation, that is, in Redis there are not "double" types. Simply the string stored at the key is parsed as a base double precision floating point value, incremented, and then converted back as a string. There is no DECRYBYFLOAT but providing a negative value will work as expected. <p> Time complexity: O(1) @param key @param increment @return Double reply, this commands will reply with the new value of key after the increment.