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Live update / hot reload / browser sync

https://stackoverflow.com/questions/42391747/is-there-a-way-to-live-update-the-page-when-using-p5js

You need Node.js for this. You can install BrowserSync using the command :

npm install -g browser-sync

Then browse to your project directory and open browsersync using :

browser-sync start --server --directory --files "*"

This will open a new tab in your browser which will list files in the directory, you can then select a html file to load and you should see a Connected to Browsersync message on the top right. This will also track changes in all files in your current directory and update the page whenever any file changes.

Master Yushi

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Select a SharePoint WebPart Item with jQuery

Kode i .ascx file:

<asp:Label ID="lblSomeLabel" runat="server"></asp:Label>

Kode i endelig html:

<span id="ctl00_m_g_6fb87798_677a_4b2e_804d_6cb23c3672d1_ctl00_lblSomeLabel"></span>

Så hvordan fanger man elementet fra JavaScript?

<script>
  "use strict";
  var $lblSomeLabel = $("[id$='_lblSomeLabel']");
  $lblSomeLabel.hide();
</script>

Læs mere på api.jquery.com:

Attribute Ends With Selector [name$=”value”]

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Boot, ur og email

Når BBB starter op vil jeg have den til at stille uret og sende mig en email.

1. Installer exim4 (email program):

apt-get update
apt-get install exim4

2. konfigurer exim4:

dpkg-reconfigure exim4-config

Mail Server: “mail sent by smarthost; no local mail”
Mail Server configuration: “smtp.altiboxmail.dk”

/etc/exim4/update-exim4.conf.conf

dc_eximconfig_configtype='satellite'
dc_other_hostnames='beaglebone.localdomain'
dc_local_interfaces='127.0.0.1 ; ::1'
dc_readhost='beaglebone.localdomain'
dc_relay_domains=''
dc_minimaldns='false'
dc_relay_nets=''
dc_smarthost='smtp.altiboxmail.dk'
CFILEMODE='644'
dc_use_split_config='false'
dc_hide_mailname='true'
dc_mailname_in_oh='true'
dc_localdelivery='mail_spool'

3. opret script til at sende email:
nano /root/emailnotify.sh

#!/bin/bash
#sleep 60
IP=`hostname -I`
HOSTNAME=`hostname -f`
echo "$HOSTNAME online. IP address: $IP" > /root/email.txt
echo >> /root/email.txt
date >> /root/email.txt
mail -s "$HOSTNAME online" -r root@$HOSTNAME max@max-it.dk < /root/email.txt
#cat /root/email.txt
rm -rf /root/email.txt

4. Opdater ur og kør email-script:

nano /etc/rc.local

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# update clock
ntpdate -b -s -u pool.ntp.org

# email
/root/emailnotify.sh

exit 0

5. genstart

reboot

6. Kontrol:

tail /var/log/exim4/mainlog