Most Popular
1500 questions
1532
votes
49 answers
Message "Support for password authentication was removed."
I got this error on my console when I tried to use git pull:
remote: Support for password authentication was removed on August 13, 2021.
remote: Please see…
Daemes
- 14,239
- 3
- 6
- 13
1532
votes
9 answers
Read environment variables in Node.js
Is there a way to read environment variables in Node.js code?
Like for example Python's os.environ['HOME'].
Jayesh
- 51,787
- 22
- 76
- 99
1532
votes
87 answers
Merge/flatten an array of arrays
I have a JavaScript array like:
[["$6"], ["$12"], ["$25"], ["$25"], ["$18"], ["$22"], ["$10"]]
How would I go about merging the separate inner arrays into one like:
["$6", "$12", "$25", ...]
Andy
- 18,723
- 12
- 46
- 54
1528
votes
35 answers
How do I create a file and write to it?
What's the simplest way to create and write to a (text) file in Java?
Drew Johnson
- 18,973
- 9
- 32
- 35
1527
votes
53 answers
How do I pass data between Activities in Android application?
I have a scenario where, after logging in through a login page, there will be a sign-out button on each activity.
On clicking sign-out, I will be passing the session id of the signed in user to sign-out. Can anyone guide me on how to keep session id…
UMAR-MOBITSOLUTIONS
- 77,236
- 95
- 209
- 278
1527
votes
9 answers
Difference between git stash pop and git stash apply
I've been using git stash pop for quite some time. I recently found out about the git stash apply command. When I tried it out, it seemed to work the same as git stash pop.
What is the difference between git stash pop and git stash apply?
Sandeep Raju Prabhakar
- 18,652
- 8
- 35
- 44
1526
votes
9 answers
Find when a file was deleted in Git
I have a Git repository with n commits.
I have a file that I need, and that used to be in the repository, and that I suddenly look for and think "Oh! Where'd that file go?"
Is there a (series of) Git command(s) that will tell me that "file…
JohnMetta
- 18,782
- 5
- 31
- 57
1524
votes
61 answers
How to find the sum of an array of numbers
Given an array [1, 2, 3, 4], how can I find the sum of its elements? (In this case, the sum would be 10.)
I thought $.each might be useful, but I'm not sure how to implement it.
akano1
- 40,596
- 19
- 54
- 67
1522
votes
7 answers
What is the preferred Bash shebang ("#!")?
Is there any Bash shebang objectively better than the others for most uses?
#!/usr/bin/env bash
#!/bin/bash
#!/bin/sh
#!/bin/sh -
etc
I vaguely recall a long time ago hearing that adding a dash to the end prevents someone passing a command to your…
bgibson
- 17,379
- 8
- 29
- 45
1521
votes
12 answers
Default behavior of "git push" without a branch specified
I use the following command to push to my remote branch:
git push origin sandbox
If I say
git push origin
does that push changes in my other branches too, or does it only update my current branch? I have three branches: master, production and…
Debajit
- 46,327
- 33
- 91
- 100
1521
votes
11 answers
How to redirect output to a file and stdout
In bash, calling foo would display any output from that command on the stdout.
Calling foo > output would redirect any output from that command to the file specified (in this case 'output').
Is there a way to redirect output to a file and have it…
SCdF
- 57,260
- 24
- 77
- 113
1519
votes
24 answers
Can I recover a branch after its deletion in Git?
If I run git branch -d XYZ, is there a way to recover the branch? Is there a way to go back as if I didn't run the delete branch command?
prosseek
- 182,215
- 215
- 566
- 871
1519
votes
34 answers
How to manage a redirect request after a jQuery Ajax call
I'm using $.post() to call a servlet using Ajax and then using the resulting HTML fragment to replace a div element in the user's current page. However, if the session times out, the server sends a redirect directive to send the user to the login…
Elliot Vargas
- 20,499
- 11
- 34
- 36
1519
votes
13 answers
How to join (merge) data frames (inner, outer, left, right)
Given two data frames:
df1 = data.frame(CustomerId = c(1:6), Product = c(rep("Toaster", 3), rep("Radio", 3)))
df2 = data.frame(CustomerId = c(2, 4, 6), State = c(rep("Alabama", 2), rep("Ohio", 1)))
df1
# CustomerId Product
# 1 Toaster
# …
Dan Goldstein
- 24,229
- 18
- 37
- 41
1517
votes
53 answers
What's a quick way to comment/uncomment lines in Vim?
I have a Ruby code file open in vi, there are lines commented out with #:
class Search < ActiveRecord::Migration
def self.up
# create_table :searches do |t|
# t.integer :user_id
# t.string :name
# t.string :all_of
# …
Ethan
- 57,819
- 63
- 187
- 237