This chapter is from the book
This chapter is from the book
This chapter is from the book
This chapter is from the book
JavaScript Comments
Comments in JavaScript (and in other scripting languages, including ActionScript and other ECMA Script derivatives) are preceded by //. As in the previous example, being able to locate all comments in a page at once can be very useful.
<SCRIPT LANGUAGE="JavaScript">
// Turn off fields used only by replace
function hideReplaceFields() {
document.getElementById(‘RegExReplace’).disabled=true;
document.getElementById(‘replaceheader’).disabled=true;
}
// Turn on fields used only by replace
function showReplaceFields() {
document.getElementById(‘RegExReplace’).disabled=false;
document.getElementById(‘replaceheader’).disabled=false;
}
//.*
<SCRIPT LANGUAGE="JavaScript">
// Turn off fields used only by replace
function hideReplaceFields() {
document.getElementById(‘RegExReplace’).disabled=true;
document.getElementById(‘replaceheader’).disabled=true;
}
// Turn on fields used only by replace
function showReplaceFields() {
document.getElementById(‘RegExReplace’).disabled=false;
document.getElementById(‘replaceheader’).disabled=false;
}
This is a simple one; //.* matches // followed by the comment body.