Hoo | Android Jetpack系列组件实战案例,配上专栏学习更轻松
kandi X-RAY | Hoo Summary
kandi X-RAY | Hoo Summary
Hoo是一个利用Android Jetpack架构组件编写的MVVM模式的入门级App,目的是用于指导新手使用Android Jetpack。.
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Trending Discussions on Hoo
QUESTION
I am learning how to use const generics in rust. An easy demo like this: Playground
Can somebody tell me how to use a const generic array as a return type?
...ANSWER
Answered 2021-Jun-09 at 02:56The point of const generics is that the size of the array is known at compile-time. If you want a runtime-known size, then that's what Vec
is for. Consider
QUESTION
I have an array of SKUs of a product in MongoDB and I want to sort it as following. I tried it with Map and set but it is returning only unique values. I want this response from the API. How can I achieve this. I already did it for categories with recursive function parentId but this is tricky.
...ANSWER
Answered 2021-Jun-06 at 09:31To obtain the result using moongoose you can use the same query used here with your model in the controller.
For example:
QUESTION
I have a mongoose query that searches for users that match a certain regex
...ANSWER
Answered 2021-May-29 at 06:46\\. instead of \. will make it work, \. says . is the spetial character when \ is the actual spetial one.
QUESTION
I have a 'bootstrap list group item'. I am trying to create a link inside the link area. The code below works:
...ANSWER
Answered 2021-Apr-29 at 17:47function checkDelete(x)
{
if (confirm('Are you sure you want to archive?')) {
var url = '?delete=' + x;
window.open(url,'_self');
}
return false;
}
QUESTION
Based on the answer from my original post A non well formed numeric value encountered while using wc_price
WooCommerce hook, I am now trying to add additional currencies to the function and finally, output them all.
I decided to go with a DIV-section of four columns whereof the CSS makes it responsive.
...ANSWER
Answered 2021-Feb-08 at 19:22There are some errors:
You are writing PHP code along with other strings without using the string concatenation symbol
.
(PHP: String Operators).The
$gbp_price
variable has not been initialized and/or valued.The symbol for getting the dollar currency is
USD
and notUS
.
So the correct function will be:
QUESTION
I'm trying to access the specific child by class name but it's not working it gives me all inner html used in ul?
...ANSWER
Answered 2021-Feb-05 at 18:56document.getElementsByClassName
returns an array with all the elements
that have said class. document.getElementsByClassName('inner')[0]
would just be selecting the first and only element with such class (Your ul
).
If you need to access a specific child of that element, you would need to use the children
property and then you can use any index that matches an existing child.
QUESTION
In Functions section, it says
The => expr syntax is a shorthand for { return expr; }.
Note: Only an expression—not a statement—can appear between the arrow (=>) and the semicolon (;). For example, you can’t put an if statement there, but you can use a conditional expression.
But in the Anonymous functions section, it says
If the function contains only one statement, you can shorten it using arrow notation
Does it mean I can use statement which is not an expression (such as if statement) in anonymous functions?
...ANSWER
Answered 2021-Jan-20 at 04:30I'm guessing that the author of that section under Anonymous functions was a bit confused. File an issue against it, and get it corrected!
Yeah, even in their example they use a print() function, which they might be confusing as a print "statement", which it clearly is not.
QUESTION
I need to recursive check two objects and keys need to be sorted, so I created two functions.
buildObj - get all uniq keys from object, sort them and call buildObjKey on each key
buildObjKey - if one of values is object call buildObj for these. Other returns is example and real code is more complex.
So question: I define buildObj before buildObjKey and call buildObjKey while its not defined yet. This is bad practice, but if I move definition of buildObj after buildObjKey I will call buildObj before It was defined... This is possible to do recursive calls between two functions without this trouble?
...ANSWER
Answered 2021-Jan-10 at 09:30So there are a number of ways you can get around this problem & I'd honestly say that it may depend on what you consider important, i.e. it may depend on your style of coding & what preferences you have.
HoistingA simple enough technique to use, feel free to read up more on MDN, but in a nutshell hoisting is where you declare a variable towards the start of the file, then use it at some later point. But with functions specifically all you need to do to make use of this concept is define them as traditional functions. The idea being that when you define a function using the keyword function
, the function essentially gets defined before other variables within the scope.
Here's a little example:
QUESTION
edit 9 Dec 2020: I have been asked to clarify the question. The best clarification I can offer is that ShadowRanger's code:
...ANSWER
Answered 2020-Nov-30 at 20:56QUESTION
This is probably something simple, but it's doing my head in.
So, my layout blade template has this:
...ANSWER
Answered 2020-Nov-28 at 10:04@include('layouts.partials.scripts', ['boo' => 'Hoo'])
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