JavaScript/Notes/Debugging: Difference between revisions
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A few approaches: | |||
1) Use the debugger keyword: | 1) Use the debugger keyword: | ||
<source lang="javascript"> | <source lang="javascript"> | ||
| Line 11: | Line 11: | ||
} | } | ||
</source> | </source> | ||
2) Bring up the debugger from the menu. | |||
[[File:Example.jpg]] | |||
2) Add a breakpoint manually. | 2) Add a breakpoint manually. | ||
Revision as of 16:29, 30 December 2013
A few approaches: 1) Use the debugger keyword: <source lang="javascript"> function myFunc(myParam) {
debugger;
var myVar = 1;
function innerFunc() {
}
} </source>
2) Bring up the debugger from the menu.
2) Add a breakpoint manually.
<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>