casual | Fake data generator for javascript | Mock library
kandi X-RAY | casual Summary
kandi X-RAY | casual Summary
Fake data generator for javascript
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Lines of Code : 10
License : No License
Copy// index.js
module.exports = () => {
const data = { users: [] }
// Create 1000 users
for (let i = 0; i < 1000; i++) {
data.users.push({ id: i, name: `user${i}` })
}
return data
}
$ json-server index.js
Community Discussions
Trending Discussions on casual
QUESTION
I just got familiar summary-details structure. For instance, the simple example:
...ANSWER
Answered 2022-Mar-30 at 14:28You can do it with CSS only.
QUESTION
I'm reading an article about how to design a Twitter Search. The basic idea is to map tweets based on their ids to servers where each server has the mapping
English word -> A set of tweetIds having this word
Now if we want to find all the tweets that have some word all we need is to query all servers and aggregate the results. The article casually suggests that we can also sort the results by some parameter like "popularity" but isn't that a heavy task, especially if the word is an hot word?
What is done in practice in such search systems?
Maybe some tradeoff are being used?
Thanks!
...ANSWER
Answered 2022-Mar-24 at 17:25First of all, there are two types of indexes: local and global.
A local index is stored on the same computer as tweet data. For example, you may have 10 shards and each of these shards will have its own index; like word "car" -> sorted list of tweet ids.
When search is run we will have to send the query to every server. As we don't know where the most popular tweets are. That query will ask every server to return their top results. All of these results will be collected on the same box - the one executing the user request - and that process will pick top 10 of of entire population.
Since all results are already sorted in the index itself, it is a O(1) operation to pick top 10 results from all lists - as we will be doing simple heap/watermarking on set number of tweets.
Second nice property, we can do pagination - the next query will be also sent to every box with additional data - give me top 10, with popularity below X, where X is the popularity of last tweet returned to customer.
Global index is a different beast - it does not live on the same boxes as data (it could, but does not have to). In that case, when we search for a keyword, we know exactly where to look for. And the index itself is also sorted, hence it is fast to get top 10 most popular results (or get pagination).
Since the global index returns only tweet Ids and not tweet itself, we will have to lookup tweets for every id - this is called N+1 problem - 1 query to get a list of ids and then one query for every id. There are several ways to solve this - caching and data duplication are by far most common approaches.
QUESTION
I am a bit new to R and trying to learn the basics.
I have run into a bit of a problem trying to convert one of my columns into seconds for analysis.
When I try to convert ride_length to numeric it is saying "NAs introduced by coercion" and I cannot seem to change this from character. I am sure there is a way to calculate the travel time using the started_at / ended_at but thought it would be easier to use the ride_length column instead.
...ANSWER
Answered 2022-Mar-15 at 21:51If I understand your requirement, I think this should work:
QUESTION
I've made a method to split address line into separate distinct categories like Region, City, Street and House which are represented by a single class. It follows relatively simple structure.
...ANSWER
Answered 2022-Mar-10 at 06:35Let me try to demonstrate your problem and my proposal.
Assumptions
- Your class has several similiar properties, all with value of
String. - You have to keep the properties, because they may be required by other frameworks.
- You have repeative code to work with the properties.
OldAddress
QUESTION
I have come across a scenario where I am getting compilation error "Cannot Resolve Symbol #INNER_CLASS_NAME" while trying to create an instance of inner class.
Please note that, I am getting this error only when I have created alias name to refer to this reference of enclosing outer class.
Please refer below code snippet for more details :
...ANSWER
Answered 2022-Mar-05 at 08:18The syntax for an "alias name" does not include any extra braces:
QUESTION
I need to return the products according to a sequence of categories (slug column) entered by the user
I was told I should use CTE (RECURSIVE) but I don't have much database experience
Category table
Product table
Examples (male):
slug ('male')
- T-shirt male Tank top
- T-shirt male Basic shirt
- T-shirt male Basic shirt rose
- Pant male casual
- Pant male social
slug ('male', 't-shirts')
- T-shirt male Tank top
- T-shirt male Basic shirt
- T-shirt male Basic shirt rose
slug ('male, 't-shirts', 'tank-top')
- T-shirt male Tank top
slug ('male, 'pants')
- Pant male casual
- Pant male social
MySQL Version: 8.0+
...ANSWER
Answered 2022-Feb-17 at 05:04You can use with recursive cte to get the hierarchal data as you mentioned, something like this:
QUESTION
I am wondering is it possible to include the percentage breakdown of each subgroup in the bars of a likert-scale with MatPlotLib? Any help would be greatly appreciated!
Python Code:
...ANSWER
Answered 2022-Feb-04 at 15:08The example code below supposes you're using nmalkin/plot-likert. It creates horizontal bars. There are 6 groups of bars. First, a dummy invisible group to create the correct spacing. And then one group of each of the scales (each group has a fixed color).
You can use matplotlib's new bar_label to label the bars (bar_label is new since matplotlib 3.4, so might need to upgrade):
QUESTION
I am creating an ecommerce, which can have Men's Fashion, Women's Fashion or Children's Fashion, it could also have more in the fure like Sports, Electronics, etc.
But I don't know if I have, for example, to repeat the categories clothes, etc for each one or not, I don't know if there is a better way. Since I must also create the dynamic menu
My table structure is like this:
...ANSWER
Answered 2022-Feb-03 at 07:22It's that ok what I'm doing, repeat for each section the same categories as clothes, Jeans, etc.?
Yes, It's perfectly okay to do that. Personally, that is what I prefer.
What would be better: To add it directly to my table the absolute path or can i do that with PHP
You can easily achieve it with PHP.
Kindly use these functions to generate the markup for the nested categories. You can modify the HTML to achieve your desired results.
QUESTION
I am trying to find a best practice for using some casual data.
For example, I have seen in some videos (for example this one), people storing their size at the beginning of their page and sending it as a parameter for every stateless widget they have.
Size size = MediaQuery.of(context).size;
Is it better for the performances (even if it's a really little) to do like this or is it better to access it every time via MediaQuery.of(context).size ?
ANSWER
Answered 2022-Feb-01 at 11:09calling MediaQuery.of(context) is in order of n where n is the length of your widget tree. so it's not that bad for most cases. also using MediaQuery.of(context) and not passing along constructors makes your code cleaner. but your widgets should not depend on the size of the screen. in most cases widgets like Flex, Expanded, FitedBox and .. can help you achieve this.
QUESTION
I was reading the GCC documentation on C and C++ function attributes. In the description of the error and warning attributes, the documentation casually mentions the following "trick":
error ("message")
warning ("message")If the
errororwarningattribute is used on a function declaration and a call to such a function is not eliminated through dead code elimination or other optimizations, an error or warning (respectively) that includes message is diagnosed. This is useful for compile-time checking, especially together with__builtin_constant_pand inline functions where checking the inline function arguments is not possible throughextern char [(condition) ? 1 : -1];tricks.While it is possible to leave the function undefined and thus invoke a link failure (to define the function with a message in
.gnu.warning*section), when using these attributes the problem is diagnosed earlier and with exact location of the call even in presence of inline functions or when not emitting debugging information.
There's no further explanation. Perhaps it's obvious to programmers immersed in the environment, but it's not at all obvious to me, and I could not find any explanation online. What is this technique and when might I use it?
...ANSWER
Answered 2022-Jan-23 at 04:53I believe the premise is to have a compile time assert functionality. Suppose that you wrote
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