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Create RegExps on the fly using string variables
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There's new RegExp(string, flags) where flags are g or i. So
'GODzilla'.replace( new RegExp('god', 'i'), '' )
evaluates to
zilla
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Find most frequent value in SQL column
...umn`
ORDER BY `value_occurrence` DESC
LIMIT 1;
Replace column and my_table. Increase 1 if you want to see the N most common values of the column.
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Remove multiple spaces and new lines inside of String
Suppose we have string like this:
9 Answers
9
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实战低成本服务器搭建千万级数据采集系统 - 更多技术 - 清泛网 - 专注C/C++...
...器。到了机器后再按照天或者半天分表，比如表名为 weibo_2013020101 、weibo_2013020112。weibo_2013020101表示2月1日上午一个表，weibo_2013020112表示2月1日下午一个表。光这样分了还是不够，1000w/2=500w，经不起压力扩展。我们还需要把表再...
Write a function that returns the longest palindrome in a given string
...hm in O(n) time! Its implementation can be found here and here.
For input String s = "HYTBCABADEFGHABCDEDCBAGHTFYW1234567887654321ZWETYGDE" it finds the correct output which is 1234567887654321.
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How to replace case-insensitive literal substrings in Java
...ing the method replace(CharSequence target, CharSequence replacement) in String, how can I make the target case-insensitive?
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How can I convert a comma-separated string to an array?
I have a comma-separated string that I want to convert into an array, so I can loop through it.
15 Answers
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How can I do string interpolation in JavaScript?
...lity. If it was implemented that way, all the existing code which prints a string in that format will fail.
– thefourtheye
Dec 21 '18 at 7:02
2
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How to store custom objects in NSUserDefaults
...g from NSUserDefaults:
- (void)saveCustomObject:(MyObject *)object key:(NSString *)key {
NSData *encodedObject = [NSKeyedArchiver archivedDataWithRootObject:object];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:encodedObject forKey:key];
[def...
how to read all files inside particular folder
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using System.IO;
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foreach (string file in Directory.EnumerateFiles(folderPath, "*.xml"))
{
string contents = File.ReadAllText(file);
}
Note the above uses a .NET 4.0 feature; in previous versions replace EnumerateFiles with GetFiles). Also, repla...