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What is a word boundary in regex?
... for the sake of understanding, is it possible to rewrite the regex \bhello\b without using \b (using \w, \W and other)?
– David Portabella
Sep 28 '16 at 9:40
5
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Java String new line
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You can also use System.lineSeparator():
String x = "Hello," + System.lineSeparator() + "there";
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How to remove leading and trailing whitespace in a MySQL field?
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I downvoted. Testcase: SELECT CONCAT('"', TRIM(" hello world "), '"') AS `trimmed value` FROM DUAL gives the wanted output "hello world". While the replace variant dangerously removes the space as word separator: SELECT CONCAT('"', REPLACE(" hello world ", ' ', '')) AS `rep...
var.replace is not a function
...unction trim(str) {
return str.replace(/^\s+|\s+$/g,'');
}
trim(' hello '); // --> 'hello'
However, if you call your functoin with something non-string, you will indeed get the error above:
trim({}); // --> TypeError: str.replace is not a function
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StringUtils 字符串工具扩展：强大的文本处理工具集 · App Inventor 2 中文网
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“Of” 后缀
对传入的参数进行操作
LeftOf("Hello", 3)
下载
.aix拓展文件：
de.ullisroboterseite.ursai2stringutils.aix
.aia示例文件：
StringUtilsTest.aia
版本历史
版本
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What are the undocumented features and limitations of the Windows FINDSTR command?
...xpressing a case insensitive regex search for any line that contains both "hello" and "goodbye" in any order
/i /r /c:"hello.*goodbye" /c:"goodbye.*hello"
-i -r -c:"hello.*goodbye" /c:"goodbye.*hello"
/irc:"hello.*goodbye" /c:"goodbye.*hello"
Options may also be quoted. So /i, -i, "/i" and "-i"...
json.dumps vs flask.jsonify
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consider
data={'fld':'hello'}
now
jsonify(data)
will yield {'fld':'hello'} and
json.dumps(data)
gives
"<html><body><p>{'fld':'hello'}</p></body></html>"
...
How can you encode a string to Base64 in JavaScript?
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Internet Explorer 10+
// Define the string
var string = 'Hello World!';
// Encode the String
var encodedString = btoa(string);
console.log(encodedString); // Outputs: "SGVsbG8gV29ybGQh"
// Decode the String
var decodedString = atob(encodedString);
console.log(decodedString); // O...
How to split a long regular expression into multiple lines in JavaScript?
...ent!`;
Outputs
/I'm a special regex{3}/
Or what about multiline?
'123hello'
.match(regex`
//so this is a regex
//here I am matching some numbers
(\d+)
//Oh! See how I didn't need to double backslash that \d?
([a-z]{1,3}) /*note to self, this is gro...
MySQL Insert into multiple tables? (Database normalization?)
...;
INSERT INTO profiles (userid, bio, homepage)
VALUES(LAST_INSERT_ID(),'Hello world!', 'http://www.stackoverflow.com');
COMMIT;
Have a look at LAST_INSERT_ID() to reuse autoincrement values.
Edit: you said "After all this time trying to figure it out, it still doesn't work. Can't I simply put ...