判断两个数组中是否存在相同的元素 应用checkbox 或者selecte
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<title>javascript 判断两个数组中是否存在相同元素</title>
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<input type="checkbox" name="mucity[]" id="checkbox" value="10" />北京
<input type="checkbox" name="mucity[]" id="checkbox" value="102" />天津
<input type="checkbox" name="mucity[]" id="checkbox" value="34" />广州
<input type="checkbox" name="mucity[]" id="checkbox" value="35" />上海
<input type="checkbox" name="mucity[]" id="checkbox" value="11" />长沙
<input type="checkbox" name="mucity[]" id="checkbox" value="84" />武汉
<input type="checkbox" name="mucity[]" id="checkbox" value="85" />杭州
<input type="checkbox" name="mucity[]" id="checkbox" value="86" />海南
<input type="checkbox" name="mucity[]" id="checkbox" value="36" />深圳
<script>
b("102,34,35,11,84,85");
function b(str)
{
var array = str.split(",");
var al = array.length;
var m = document.getelementsbyname('mucity[]');
var l = m.length;
for ( var i=0; i< l; i++)
{
for( var j=0;j<al;j++)
{
if( m[i].value == array[j])
{
m[i].checked = true;
break;
}
}
}
}
</script>
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