大约有 31,000 项符合查询结果（耗时：0.0273秒） [XML]
Reset auto increment counter in postgres
...duct_id_seq (that is, ${table}_${column}_seq).
This is the ALTER SEQUENCE command you need:
ALTER SEQUENCE product_id_seq RESTART WITH 1453
You can see the sequences in your database using the \ds command in psql. If you do \d product and look at the default constraint for your column, the nextv...
Convert character to ASCII code in JavaScript
...ust out of interest test on performance and it performs **relatively badly compared using 0. jsperf.com/default-to-0-vs-0/4 ** Its a relative difference only, either way its very very quick.
– wade montague
May 9 '13 at 12:35
...
Java Ordered Map
... To use TreeMap it required that key class have to implement Comparable interface. If not, then some kind of RuntimeException will be thrown. TreeMap it's also sorted map, but I think author want to use just ordered (not sorted) map. LinkedHashMap it's good choice to get only ordered m...
C++: what regex library should I use? [closed]
I'm working on a commercial (not open source) C++ project that runs on a linux-based system. I need to do some regex within the C++ code. (I know: I now have 2 problems.)
...
How can I get the MD5 fingerprint from Java's keytool, not only SHA-1?
...
@Ankit-Saxena - Can you please answer this stackoverflow.com/questions/55336382/… -v option is not working with me.
– v1h5
Jun 26 '19 at 6:39
add a commen...
How to auto-indent code in the Atom editor?
... @doobdargent I created a question with an answer on how to compose two commands into a new command here: stackoverflow.com/questions/24456995/…
– Lee
Jun 27 '14 at 16:50
...
Why do variable names often start with the letter 'm'? [duplicate]
...
|
show 7 more comments
112
...
Visual Studio debugger - Displaying integer values in Hex
...
|
show 5 more comments
46
...
using lodash .groupBy. how to add your own keys for grouped output?
...ers: value }))
.value()
);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>
Original Answer
var result = _.chain(data)
.groupBy("color")
.pairs()
.map(function(currentItem) {
return _.object(_.zip(["color"...