Here’s the source code: <div id = "div_array"></div> <script> var letters_array = ['a', 'b', 'c', 'd']; var div_array_value = '';
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Learn JavaScript. How to display a message in a pop up window?
Here’s the source code: <script> alert ("It works!"); </script> alert will open a pop-up window, and it will display the
Continue readingWhat is the difference between a blog and a forum?
Answer 1: On a forum, everyone can start a new discussion. Everyone can answer to that discussion. On a blog,
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Answer 1: Using Inkscape (it’s freeware). You can download it here: https://inkscape.org/en/release/ Inkscape is free to use, open source, and
Continue readingHow to convert an image from color to black and white (grayscale)?
Answer 1: Using IrfanView (it’s freeware). You can download it here: https://www.irfanview.com/main_download_engl.htm Launch IrfanView. Open the image (File → Open).
Continue readingHow to add two numbers in PHP?
Answer 1: Using the addition operator (+) More details are here: http://php.net/manual/en/language.operators.arithmetic.php
Continue readingHow to fix one line “code” tag that doesn’t work in WordPress
If I have only one line, and I surround it with the code tags, it doesn’t work. I noticed this
Continue readingHow to fix “Call to undefined function imagecreatetruecolor()”
Open php.ini Replace: ;extension=php_gd2.dll with: extension=PATHTOPHPEXE\ext\php_gd2.dll where PATHTOPHPEXE is the location where you installed php.exe (for instance, c:\php). You need
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<!DOCTYPE html> <html> <head> <meta charset = "UTF-8"> <title>Learn JavaScript. Arithmetic operators. Addition (plus +).</title> </head> <body> <script> var
Continue reading(x / sin x)’ = ?
This video is part of the course “Learn Derivatives. Start Here.” Watch this video on YouTube: https://www.youtube.com/watch?v=AL76zsQhSaM&hd=1 Buy the full
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