The Global object has properties and methods at the highest level, without a parent object. This means that global properties and functions can be used with all the built-in JavaScript objects.

• The Global object has three properties:
Global object methods (or functions):
- In the following example is a JS script that uses the method eval() twice, transform and interpret the argument received as a JavaScript code.
<script type="text/javascript"><!--
function calcs(form) { = eval(form.expr.value);
eval("alert('Have a good life!')");
 <p>Enter a mathematical expression (addition, subtraction, multiplication, division), for example (7*8 or 3+8/2): </p>
 <input type="text" name="expr" size="35" />
 <input type="button" name="calc" value="Calculation" onclick="calcs(this.form)" /><br />
 The result is:
 <input type="text" name="re" size="18">
- This code displays an alert window and then the following result. A form that you can use for simple math operations:

Enter a mathematical expression (addition, subtraction, multiplication, division), for example (7*8 or 3+8/2):

The result is:

Daily Test with Code Example

Which tag adds a new line into a paragraph?
<b> <br> <p>
First line ...<br>
Other line...
Which CSS property can be used to add space between letters?
text-size word-spacing letter-spacing
#id {
  letter-spacing: 2px;
What JavaScript function can be used to get access to HTML element with a specified ID?
getElementById() getElementsByTagName() createElement()
var elm = document.getElementById("theID");
var content = elm.innerHTML;
Click on the "echo" correct instruction.
echo "" echo ""; echo """;
echo "Address URL:";
Global Object

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