JavaScript/Notes/Debugging: Difference between revisions
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=== Add a Breakpoint === | === Add a Breakpoint === | ||
[[File:Debugger-breakpoint.png]] | [[File:Debugger-breakpoint.png]] | ||
=== Debugger Keyword Full Example === | === Debugger Keyword Full Example === | ||
Copy'n'paste this example into your text editor, open your browser, and open this file. | |||
<source lang="html5"> | <source lang="html5"> | ||
<!doctype html> | <!doctype html> | ||
Revision as of 16:44, 30 December 2013
A few approaches:
debugger keyword
<source lang="javascript"> function myFunc(myParam) {
debugger;
var myVar = 1;
function innerFunc() {
}
} </source>
Error creating thumbnail: Unable to save thumbnail to destination
Add a Breakpoint
Error creating thumbnail: Unable to save thumbnail to destination
Debugger Keyword Full Example
Copy'n'paste this example into your text editor, open your browser, and open this file. <source lang="html5"> <!doctype html> <head> <title>Debugger Example</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body>
Test Debugger
When Entering an Execution Context, the Variable Environment is initialized with parameter variables, Function Declarations, and Variable Statements.
function myFunc(myParam) {
debugger;
var myVar = 1;
function innerFunc() {
}
}
<script> function myFunc(myParam) {
debugger;
var myVar = 1;
function innerFunc() {
}
} </script>
Open the debugger and then click the button below.
<button onclick="myFunc(7)">myFunc(7)</button> </body> </html> </source>