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PHP学习必看的一些书 - PHP - 清泛IT论坛，有思想、有深度
...段选择适合自己的图书。作者：王顗
源自：http://itnote.xyz/posts/PHP_start_books.html
Return HTTP status code 201 in flask
... variable like
notfound = 404
invalid = 403
ok = 200
and using
return xyz, notfound
than time make sure its type is int not str. as I faced this small issue
also here is list of status code followed globally
http://www.w3.org/Protocols/HTTP/HTRESP.html
Hope it helps.
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How do I use CREATE OR REPLACE?
...by using query
SELECT table_name
FROM user_tables
WHERE table_name = 'XYZ'
if record found then truncate table otherwise create Table
Work like Create or Replace.
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LINQPad [extension] methods [closed]
...lic string abc = "Hello1"; // abc is shown as "myprop"
public string xyz = "Hello2"; // xyz is entirely hidden
}
If you create an instance of this class, like
var obj1 = new test();
obj1.Dump("Test");
then it will output only Hint, constMember1, constMember2, and myprop, but not property ...
How do I check if a SQL Server text column is empty?
...ould add my solution.
This is the where clause that worked for me.
WHERE xyz LIKE CAST('% %' as text)
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Extract a regular expression match
...put if there is not a match in all positions
> txt <- c("aaa12xxx","xyz")
> regmatches(txt,regexpr("[0-9]+",txt)) # could cause problems
[1] "12"
> gsub("[^0-9]", "", txt)
[1] "12" ""
> str_extract(txt, "[0-9]+")
[1] "12" NA
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Difference between spring @Controller and @RestController annotation
... edited Apr 15 '19 at 6:06
xyz
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answered Jun 27 '17 at 11:54
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Test if something is not undefined in JavaScript
...stead of a useful message about an "un-caught exception @ line 123 of file xyz.js". Eventually a second developer will probably comment out the console.log() statement, making it more difficult for a 3rd developer to come in and fix a bug happening deep within doSomething().
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Git: “please tell me who you are” error
...o-detect email address.
By default it takes your system username like abc@xyz.none.
So you need to set your email like below:
git config user.email "someone@gmail.com"
After setting email you can run the git commands and commit your changes.
git init
git add *
git commit -m "some init msg"
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Shell script while read line loop stops after the first line
...tdin is preferred.
#!/bin/bash
while read ONELINE ; do
ssh ubuntu@host_xyz </dev/null <<EOF 2>&1 | filter_pgm
echo "Hi, $ONELINE. You come here often?"
process_response_pgm
EOF
if [ ${PIPESTATUS[0]} -ne 0 ] ; then
echo "aborting loop"
exit ${PIPESTATUS[0]}
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