View developer console for these examples

• js-01.htm - document.write()
• js-02.htm - alert()
• js-03.htm - onclick=
• js-04.htm - src=
• js-05.htm - Syntax errors
• js-06.htm - console.log()
• js-07.htm - white space
• js-08.htm - new lines

• js-09.htm - functions
• js-10.htm - global scope
• js-11.htm - var - local scope

• js-12.htm - conditional (if)
• js-13.htm - multi-way if
• js-14.htm - while loop
• js-15.htm - object "associative array"
• js-16.htm - Counted loop
• js-17.htm - Loop and break
• js-18.htm - Loop and continue
• js-19.htm - Try / catch / finally