Empty the content of the map, removing alla the elements which contains the structure.

1 map.clear

<map.clear name='name'>
    <expr /> ?
    <var /> ?
</map.clear>

Attributes
Name	Type	Required	Default	Description
Aname	string				Name of the map.

Arguments
Name	Type	Required	Unique	Nullable	Description
Eexpr	Integer
Evar	Integer

Example

Copy

<xsql-script name='map_clear_sample1'>
    <body>
        <map name='a'>
            <item>0<string>ZERO</string></item>
            <item>1<string>ONE</string></item>
            <item>2<string>TWO</string></item>
            <item>3<string>THREE</string></item>
            <item>4<string>FOUR</string></item>
            <item>5<string>FIVE</string></item>
            <item>6<string>SIX</string></item>
            <item>7<string>SEVEN</string></item>
            <item>8<string>EIGHT</string></item>
            <item>9<string>NINE</string></item>
        </map>

        <map.clear name='a' />
        <println><a/></println>
    </body>
</xsql-script>