大约有 47,000 项符合查询结果（耗时：0.0326秒） [XML]
How can I check if character in a string is a letter? (Python)
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195
You can use str.isalpha().
For example:
s = 'a123b'
for char in s:
print(char, char.isa...
How to iterate a loop with index and element in Swift
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15 Answers
15
Active
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Text Progress Bar in the Console [closed]
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31 Answers
31
Active
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Bash, no-arguments warning, and case decisions
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178
if [[ $# -eq 0 ]] ; then
echo 'some message'
exit 0
fi
case "$1" in
1) echo 'you ...
Keep only first n characters in a string?
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edited Apr 12 '14 at 11:37
andrewb
4,80266 gold badges3030 silver badges5151 bronze badges
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Check if user is using IE
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How to determine browser version from script
Update : (IE 11 support)
function msieversion() {
var ua = window.navigator.userAgent;
var msie = ua.indexOf("MSIE ");
if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./)) // If Internet Explorer, return ve...
Code Golf: Lasers
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Perl, 166 160 characters
Perl, 251 248 246 222 214 208 203 201 193 190 180 176 173 170 166 --> 160 chars.
Solution had 166 strokes when this contest ended, but A. Rex has found a couple ways to shave off 6 more characters:
s...
Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio
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102
You would mostly be using COUNT to summarize over a UID. Therefore
COUNT([uid]) will produce...
What does ~~ (“double tilde”) do in Javascript?
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251
It removes everything after the decimal point because the bitwise operators implicitly convert t...
Fastest way to remove first char in a String
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151
The second option really isn't the same as the others - if the string is "///foo" it will beco...