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How do I update Node.js?
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Use Node Version Manager (NVM)
It's a Bash script that lets you download and manage different versions of node. Full source code is here.
There is a separate project for nvm for Windows: github.com/coreybutler/nvm-windows
Below are the full steps to use NVM for mult...
JS: iterating over result of getElementsByClassName using Array.forEach
...html>
<head>
<meta charset="UTF-8">
<script>
function findTheOddOnes()
{
var theOddOnes = document.getElementsByClassName("odd");
for(var i=0; i<theOddOnes.length; i++)
{
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How to get the previous URL in JavaScript?
Is there any way to get the previous URL in JavaScript? Something like this:
7 Answers
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How to fetch the row count for all tables in a SQL SERVER database [duplicate]
I am searching for a SQL Script that can be used to determine if there is any data (i.e. row count) in any of the tables of a given database.
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Python equivalent of D3.js
...You could use d3py a python module that generate xml pages embedding d3.js script. For example :
import d3py
import networkx as nx
import logging
logging.basicConfig(level=logging.DEBUG)
G = nx.Graph()
G.add_edge(1,2)
G.add_edge(1,3)
G.add_edge(3,2)
G.add_edge(3,4)
G.add_edge(4,2)
# use 'with' i...
How to delete from a text file, all lines that contain a specific string?
...ndy tip for others who stumble on this Q&A thread and are new to shell scripting: Short options are fine for one-time uses on the command line, but long options should be preferred in scripts since they're more readable.
– Dennis
Jan 12 '15 at 10:45
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Difference between setTimeout with and without quotes and parentheses
I am learning JavaScript and I have learned recently about JavaScript timing events. When I learned about setTimeout at W3Schools , I noticed a strange figure which I didn’t run into before. They are using double quotes and then call the function.
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why windows 7 task scheduler task fails with error 2147942667
...\windows\system32\CMD.EXE. I tried with and without double quotes in the Script and Start-in and it made no difference. Then I tried replacing all path references to mapped network drives and with UNC references (\Server1\Sharexx\my_scripts\run_this.cmd) and that fixed it for me.
Pat.
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How to loop through files matching wildcard in batch file
.../? help, basename can be extracted using the nifty ~n option. So, the base script would read:
for %%f in (*.in) do call process.cmd %%~nf
Then, in process.cmd, assume that %0 contains the base name and act accordingly. For example:
echo The file is %0
copy %0.in %0.out
ren %0.out monkeys_are_coo...
How to create a directory and give permission in single command
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You could write a simple shell script, for example:
#!/bin/bash
mkdir "$1"
chmod 777 "$1"
Once saved, and the executable flag enabled, you could run it instead of mkdir and chmod:
./scriptname path/foldername
However, alex's answer is much better bec...