Easy Learning Javascript (2 Edition): Javascript for Beginner's Guide Learn Easy and Fast by Hu Yang

Author:Hu, Yang [Hu, Yang]
Language: eng
Format: azw3
Published: 2020-04-05T16:00:00+00:00

{

var provinceObj= document.getElementById( "province" );

provinceObj.options.length= 0 ; // clear all

var index= obj.selectedIndex;

for ( var i= 0 ; i< provinceArray[ index]. length; i++)

{

var option = document.createElement ( "option" );

option.text = provinceArray [ index ][ i ];

option.value = provinceArray [ index ][ i ];

provinceObj.options [ provinceObj.options.length ]= option ;

}

}

</script>

Event

Event List:

Onblur

element loses focus

Onchange

changes the contents

Onclick

mouse click on an object

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