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Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...nging order and names of variables, shortening variables, changing case of strings). From this, you should be able to figure out what was missing from one or the other. For example (this is not very elegant):
difference <-
data.frame(lapply(1:ncol(a1),function(i)setdiff(a1[,i],comparison$tM[,...
What is base 64 encoding used for?
...
But why is base64 method used to encode string data? eg in javascript atob function Is there meaning the server to encode a json file to base64 format? Special characters could be a use case but why not utf8 in that case, are they equibalent? Any further resource ...
jQuery get input value after keypress
...
This is because keypress events are fired before the new character is added to the value of the element (so the first keypress event is fired before the first character is added, while the value is still empty). You should use keyup instead, which is fired after the character has b...
Java: Subpackage visibility?
...sInA in package a.b:
package a;
public class ClassInA{
private final String data;
public ClassInA(String data){ this.data = data; }
public String getData(){ return data; }
protected byte[] getDataAsBytes(){ return data.getBytes(); }
protected char[] getDataAsChars(){ return...
For files in directory, only echo filename (no path)
...earning more about parameter expansion: wiki.bash-hackers.org/syntax/pe#substring_removal
– DougW
Jan 26 '12 at 1:59
1
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What are all the differences between src and data-src attributes?
...r" to this question; src must be included. You use data- attributes to add extra data for a scripting language (like JavaScript) to leverage.
– Tieson T.
Mar 10 '13 at 7:53
ad...
Best way to track onchange as-you-type in input type=“text”?
...n. If a user holds down a key, the event will only fire once for the first character. onkeypress fires whenever a char is added to the text field.
– fent
Mar 12 '12 at 17:22
62
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Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
..., the data is offset appropriately and +01:00 (or similar) is added to the string. Stripping off the tz_info value (using tz_convert(tz=None)) doesn't doesn't actually change the data that represents the naive part of the timestamp.
So, the only way to do what you want is to modify the underlyin...
async await return Task
...ot work (I guess I am doing something wrong). Example static async Task<string> DoStuff() { ... = await SomeMethodAsync(); return "string value"; } .. var x = DoStuff(); But this x - is with type "Task<string>", not with type "string"... Why is that so?
– Prokurors...
Benefits of header-only libraries
...is because the Windows API has functions which use either Unicode or ASCII strings and macros/defines which automagically use the correct types based on the project's Unicode settings. If you pass a string across the library boundary that is the wrong type then things break at runtime. Or you may fi...