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Calling Java varargs method with single null argument?
...le. See the example below:
public class Temp{
public static void main(String[] args){
foo("a", "b", "c");
foo(null, null);
foo((Object)null);
Object bar = null;
foo(bar);
}
private static void foo(Object...args) {
System.out.println("foo called, args: ...
Split string on whitespace in Python [duplicate]
...es a list of size 2. First item being the first word, second - rest of the string. s.split(None, 1)[0] would return the first word only
– user3527975
Feb 25 '16 at 21:43
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Clearing a string buffer/builder after loop
How do you clear the string buffer in Java after a loop so the next iteration uses a clear string buffer?
8 Answers
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How do I use grep to search the current directory for all files having the a string “hello” yet disp
... grep to search the current directory for any and all files containing the string "hello" and display only .h and .cc files?
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“Unicode Error ”unicodeescape" codec can't decode bytes… Cannot open text files in Python 3 [duplica
...
The problem is with the string
"C:\Users\Eric\Desktop\beeline.txt"
Here, \U in "C:\Users... starts an eight-character Unicode escape, such as \U00014321. In your code, the escape is followed by the character 's', which is invalid.
You either nee...
Combine two columns of text in pandas dataframe
...
if both columns are strings, you can concatenate them directly:
df["period"] = df["Year"] + df["quarter"]
If one (or both) of the columns are not string typed, you should convert it (them) first,
df["period"] = df["Year"].astype(str) + df["q...
Split data frame string column into multiple columns
...
Use stringr::str_split_fixed
library(stringr)
str_split_fixed(before$type, "_and_", 2)
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Replacing blank values (white space) with NaN in pandas
...^\s*$' should be the expression to use. without ^ and $ it will match any string with two consecutive blanks. Also changed + to * to include the empty string "" in the list of things to convert to NaN
– Master Yogurt
Nov 18 '16 at 17:36
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The $.param( ) inverse function in JavaScript / jQuery
...rsion of a function I wrote a while ago to do something similar.
var QueryStringToHash = function QueryStringToHash (query) {
var query_string = {};
var vars = query.split("&");
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split("=");
pair[0] = decodeURIComponent(pair[...
Filtering DataGridView without changing datasource
...ple.
(dataGridViewFields.DataSource as DataTable).DefaultView.RowFilter = string.Format("Field = '{0}'", textBoxFilter.Text);
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