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Select by partial string from a pandas DataFrame
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df[df['value'].astype(str).str.contains('1234.+')] for filtering out non-string-type columns.
– François Leblanc
Feb 13 '18 at 20:22
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Insert Unicode character into JavaScript
...dited Aug 26 '15 at 20:41
Seanny123
5,70277 gold badges4949 silver badges100100 bronze badges
answered Oct 26 '12 at 21:26
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Downloading a large file using curl
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Defend your comment @yes123, I'm interested to know.
– Jürgen Paul
Aug 7 '12 at 5:24
8
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Error: Jump to case label
...in the { }
dostuff(i);
break;
}
case 2:
dostuff(123); // Now you cannot use i accidentally
}
Edit
To further elaborate, switch statements are just a particularly fancy kind of a goto. Here's an analoguous piece of code exhibiting the same issue but using a goto instead ...
How to determine equality for two JavaScript objects?
....isFalse(objectEquals(/abc/, /abc/));
assert.isFalse(objectEquals(/abc/, /123/));
var r = /abc/;
assert.isTrue(objectEquals(r, r));
assert.isTrue(objectEquals("hi","hi"));
assert.isTrue(objectEquals(5,5));
assert.isFalse(objectEquals(5,10));
assert.isTrue(objectEquals([],[]));
assert.isT...
What's the difference between ASCII and Unicode?
...SCII characters are printable characters of the alphabet such as abc, ABC, 123, ?&!, etc. The others are control characters such as carriage return, line feed, tab, etc.
See below the binary representation of a few characters in ASCII:
0100101 -> % (Percent Sign - 37)
1000001 -> A (Capital...
How do you unit test private methods?
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123
If you are using .net, you should use the InternalsVisibleToAttribute.
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How do you clear a slice in Go?
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123
It all depends on what is your definition of 'clear'. One of the valid ones certainly is:
sli...
Avoiding SQL injection without parameters
... lot of i18n issues with dates/numbers; what date is 01/02/03? How much is 123,456? Do your servers (app-server and db-server) agree with each-other?
If the risk factor isn't convincing to them, how about performance? The RDBMS can re-use the query plan if you use parameters, helping performance. I...
Extract elements of list at odd positions
...it be enumerate(L) instead of enumerate(items) ?
– ab123
May 24 '18 at 5:38
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