PHP FOR BEGINNERS AND INTERMEDIATES: PHP, MySQL, JavaScript, Jquery, HTML, CSS everything in just one textbook, December 2015 edition by José Miguel Sánchez
Author:José Miguel Sánchez [Sánchez, José Miguel]
Language: eng
Format: azw3, mobi, epub
Published: 2015-12-21T16:00:00+00:00
<body>
<input type = "button" value = "Display greeting" onclick = "hello()" />
</ body>
</ html>
Note:
The document.location.href = "http://www.cnn.com/" command redirects the page to the specified URL, in this case www.cnn.com.
throw Command
This command is used in conjunction with try ... catch to create exception messages, control program flow and generate more precise error messages.
Syntax
throw exception
Example:
We see below a use of the try method under different conditions and throwing different error messages in case any of them fail.
<! DOCTYPE html>
<html>
<body>
<Script type = "text / javascript">
var x = prompt ("Enter number of 1 to 10", "");
try
{
if (x> 5)
{
throw "Err1";
}
else if (x <5)
{
throw "Err2";
}
else if (isNaN(x))
{
throw "Err3";
}
}
catch (err)
{
if (err == "Err1")
{
alert ("! Error number is greater than five");
}
if (err == "Err2")
{
alert ("Error number is less than five!");
}
if (err == "Err3")
{
alert ("Error input is not a number!.");
}
}
</ script>
</ body>
</ html>
Download
PHP FOR BEGINNERS AND INTERMEDIATES: PHP, MySQL, JavaScript, Jquery, HTML, CSS everything in just one textbook, December 2015 edition by José Miguel Sánchez.mobi
PHP FOR BEGINNERS AND INTERMEDIATES: PHP, MySQL, JavaScript, Jquery, HTML, CSS everything in just one textbook, December 2015 edition by José Miguel Sánchez.epub
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