html – Is JavaScript added and executed during rendering or parsing?

AFAIK creates each website in a two-step process: Analyze and Render. When parsing, the markup (Say HTML) is taken over unchanged or created from a server-side programming language such as PHP.

In rendering, the style (such as CSS) is added to the parsed structures.

I do not know where JavaScript comes from when parsing or rendering:

Is JavaScript added and executed during rendering or parsing?

Command line – XAMPP files are not executed and do not start

Hello, I recently had a problem with my Mac OS and half of my files had backed up my files and applications. My Mac has now been updated to MacOs Mojave. when I opened my xampp and started executing it, it always appears …

MAC address can not be calculated: Error while setting up the PID file
PID file error -1

I'm not sure what to do next, because I just want to save my files from the htdocs in xamp and do the SQL work 🙁

Once I click on XAMPP, it says "Can not load stack definitions", that means I've lost my PHP files because I'm trying so hard to recover them, and I'm not sure what to do next to do is

Oracle SQL 11gR2 => retrieves all data where "impdp" was executed

Hello, my team has done several databases Data pump import "impdp" in the last two years.

The workflow has always been to import all "application schemas" (the schemas used by our application). daily backup 2019-04-05.sql Dump one of the daily backups.

Now I have to find out the exact dates "Impdp"Restore where performed.

I tried the following:
Enter the image description here

I found the file dpdump on my server, but it only contains these three lines:

Enter the image description here

I only have on "import.log" file, which was overwritten with each restore dpdump was taken.

Are there any system tables where I can check each time, when dpdump was carried out

Where else can I search for "log files" for the protocol?

javascript – To solve the problem of live streaming with JS -> Streaming: 91 Uncught TypeError: & # 39; createObjectURL & # 39; for & # 39; URL & # 39; Could not be executed:

I wanted to try a bit of live broadcast. But in my view, many have the same problem. But I could not see the answer in other articles or answers.

When I access the website, I request permission from the camera and it will be activated. But nothing is shown at all.

PS: ignore the socket.io. hehe

The error appears specifically in

video.src = window.URL.createObjectURL (Stream);

I will leave the code

video.src = window.URL.createObjectURL (Stream);

Streaming Server

JQuery / Javascript My function is not executed when the key is pressed

I have a button. When I click on it, I want to get all the data from the row. My .php file (I also did not include PHP code here) looks like this (I've cut out the table for stackoverflow)


     bob





Now I click and nothing happens. Any ideas? The . Prefix means to search for class.

How exactly backups are executed by SQL Server VSS Writer Service

We have few servers running backups from unknown sources. The physical_device_name in the backupmediafamily table is approximately {922DDBA9-0686-46B8-94BC-XXXXXXXXXX} 2.

Once I checked, I saw that this kind of backup was running in the database. So I quit the SQL Server VSS Writer service and the backup stopped. I had to think that backups are done by this service. I'm still unaware of how Windows / SQL should trigger this backup at any given time, because the SQL Server VSS Writer service is running 24 * 7.

I also saw a scenario on some servers running SQL Server VSS Writer, but these backups do not take place in SQL.

Can someone help me determine exactly what causes SQL Server to trigger such backups because I want to stop such backups across the enterprise.

mysql – Why the output is wrong after the left join was executed as a subquery

I have TWO QUESTIONS they work perfectly, but when I query the two as join CONNECT LINKS The output will be wrong. So what's the problem?

Query 1:

Select Batsman.innings_no.
Bowler,
Sum (balls) as B,
ifnull (sum (Runs_In_Over), 0) as R,
ifnull (sum (zero), 0) as 0s,
ifnull (sum (four), 0) as 4s,
ifnull (sum (six), 0) as 6s
from (SELECT A.innings_no,
A.bowler,
counting (*) as balls,
Sum (B.Runs_Scored) As & # 39; Runs_In_Over & # 39 ;,
Case B.runs_scored
if 0, then count (*) as zero,
Case B.runs_scored
If 4, then count (*) as four,
Case B.runs_scored
If 6, then count (*) as six
FROM `database`.ball_by_ball A
INNER JOIN `database`.batsman_scored B
using (match_id, over_id, ball_id, innings_no)
Where match_id = 981018
and innings_no = 2
GROUP BY A.innings_no, A.bowler, B.runs_scored) as a batsman
group by innings_no, bowler order by bowler;

Query 2:

choose innings_no,
Bowler,
ifnull (sum (Wides), 0) as WD,
ifnull (sum (NoBalls), 0) as NB,
sum (extra_runs) as an extra
from (SELECT D.innings_no,
D.bowler,
case E.extra_type_id
if 2 then counts (*) as ends,
case E.extra_type_id
if 4 ends (*) as NoBalls,
Sum (E.Extra_Runs) as & # 39; Extra_runs & # 39;
FROM `database`.ball_by_ball D
INNER JOIN `database`.extra_runs E
using (match_id, over_id, ball_id, innings_no)
WHERE match_id = 981018
and innings_no = 2
and E.Extra_Type_Id IN (2, 4)
GROUP BY D.innings_no, D.bowler, E.extra_type_id) as an extra
group by innings_no, bowler order by bowler;

Join Query:

Select Batsman.innings_no.
Batsman.bowler,
Sum (balls) as B,
ifnull (sum (Runs_In_Over), 0) as R,
ifnull (sum (zero), 0) as 0s,
ifnull (sum (four), 0) as 4s,
ifnull (sum (six), 0) as 6s,
ifnull (sum (Wides), 0) as WD,
ifnull (sum (NoBalls), 0) as NB,
ifnull (sum (extra_runs), 0) as an extra
from (SELECT A.innings_no,
A.bowler,
counting (*) as balls,
Sum (B.Runs_Scored) As & # 39; Runs_In_Over & # 39 ;,
Case B.runs_scored
if 0, then count (*) as zero,
Case B.runs_scored
If 4, then count (*) as four,
Case B.runs_scored
If 6, then count (*) as six
FROM `database`.ball_by_ball A
INNER JOIN `database`.batsman_scored B
using (match_id, over_id, ball_id, innings_no)
Where match_id = 981018
and innings_no = 2
GROUP BY A.innings_no, A.bowler, B.runs_scored) as a batsman
LEFT JOIN (SELECT D.innings_no,
D.bowler,
case E.extra_type_id
if 2 then counts (*) as ends,
case E.extra_type_id
if 4 ends (*) as NoBalls,
Sum (E.Extra_Runs) as & # 39; Extra_runs & # 39;
FROM `database`.ball_by_ball D
INNER JOIN `database`.extra_runs E
using (match_id, over_id, ball_id, innings_no)
WHERE match_id = 981018
and innings_no = 2
and E.Extra_Type_Id IN (2, 4)
GROUP BY D.innings_no, D.bowler, E.extra_type_id) as extra using (innings_no, bowler)
group by innings_no, bowler order by bowler;

Query 1 output:

Enter the image description here

Query 2 output:

Enter the image description here

Join Query Output:

Enter the image description here

If you've seen screenshot 1 and 2, compare it to the join query bowlerThen it's clear that when I use Left Join as a subquery, the result does not exactly show what's displayed in a single query.

So what's the problem? What do I have to do to solve this problem and why does this issue occur?

Javascript – How can I access the "request size" before the compression is executed?

I have a global store and a store that works in context:

$ .ajaxSetup ({
beforeSend: Function (jqXHR, Settings) {
myApp.Request.Context = settings.context, jqXHR.url = settings.url;

if (settings.global && (settings.context === "undefined" || settings.context! == "undefined" &&! document.getElementById ("main"). contains (settings.context)))
StartWait ();
},
// Removed code for easier reading ...
xhr: function () {
Let xhr = new window.XMLHttpRequest (), $ context = $ (myApp.Request.Context);

if (myApp.Request.Context) {
xhr.addEventListener ("progress", function (evt) {

console.log ("progress", evt);
console.log ("progress", $ context);
console.log ("lengthComputable", evt.lengthComputable);
console.log ("x-decompressed-content-length"), evt.target.getResponseHeader (x-decompressed-content-length & # 39;);
console.log ("content-length", evt.target.getResponseHeader (& # 39; content-length & # 39;));

leave contentLength;
if (evt.lengthComputable) {
contentLength = evt.total;
} else {
contentLength = evt.target.getResponseHeader (& # 39; content-length & # 39;);
}

let percentComplete = evt.loaded / contentLength * 100;

if (percentComplete === 100) {

console.log ("progress-done", percentComplete);

showInnerLoading (false, $ context);
}
}, not correct);

StartWait (true, myApp.Request.Context);
}

Return xhr;
}

});

Problem: If the request is being compressed by the server, evt.lengthComputable is wrong and evt.total = 0, the contentLength comes with the value of the compressed size, but I need the information of the original size.

Resolved in my view or on the server side by creating an "x-decompressed content – length" header that specifies the original or client-side value with a type of hack.

However, when I try to access the Response OutputStream on the server side of BeginRequest and PreSendRequestContent to get the length, I get an exception.

How do I solve this without having to go to libraries?

SQL Server – Are SET statements executed in the correct order?

Since I could not find out here, are set statements executed in the correct order? Below is a query I found. Would I get the same result every time?

DECLARE @Num VARCHAR (10) = & # 39; 10 & # 39 ;;
DECLARE @Cleaned VARCHAR (10);
SET @Cleaned = SUBSTRING (@Num, PATINDEX (& # 39;%[^0]% & # 39 ;, @ Num + & # 39 ;. & # 39;), LEN (@Num));
SET @Cleaned = CASE
IF LEN (@Cleaned)> 3
THEN @ cleaned
ELSE RIGHT (# 00000 # + @ Cleaned, 3)
THE END;
- be set up
SELECT @Num AS [before]
     , @Cleaned AS [After]