Trying to strip html from Datatables during export

问题

I'm using datatables exactly as the example here. So to export data I used a function that allows me to change <br> with newlines in excel. I used this:

return column === 5 ? data.replace( /<br\s*\/?>/ig, "\n"): data;

However when I try to add a second change I want to make to a different column it doesn't work... I tried adding this right below the first working replacement:

return column === 1 ? data.replace( /<.*?>/ig, ""): data;

I want to basically strip all html tags after first changing the <br> to newlines. But as my code is now, the second part just gets ignored during export... Does anyone know what I am doing wrong?

Here is my full code:

var fixNewLine = {
    exportOptions: {
        format: {
            body: function ( data, column, row ) {
                return column === 5 ? data.replace( /<br\s*\/?>/ig, "\n"): data;
                return column === 1 ? data.replace( /<.*?>/ig, ""): data;
            }
        }
    }
};

var t2e = $('#table2excel').DataTable({
    dom: 'Bfrtip',
        buttons:[
            $.extend( true, {}, fixNewLine, {
                extend: 'excelHtml5'
            } ),
            'pdf', 'print', 'copy', 'csv' //, 'excel'
        ]

});

回答1:

You can't have multiple return statement in code only first one will be executed, try this:

var fixNewLine = {
    exportOptions: {
        format: {
            body: function ( data, column, row ) {
                if (column === 5) {
                    data = data.replace(/<br\s*\/?>/ig, "\n");
                }
                return column === 1 ? data.replace(/<.*?>/ig, ""): data;
            }
        }
    }
};

回答2:

A switch statement to deal with each column individually worked really well for me. See my usage below...

var fixNewLine = { 
    exportOptions: { 
        format: { 
            body: function ( data, row, column, node ) { 
                 switch(column){
                    case 1 :  return column === 1 ? data.replace(/<.*?>/ig, "") : data; break;
                    case 2 :  return column === 2 ? data.replace(/<.*?>/ig, "") : data; break;
                    case 3 :  return column === 3 ? data.replace(/<.*?>/ig, "") : data; break;
                    case 4 :  return column === 4 ? data.replace(/<.*?>/ig, "") : data; break;
                    case 5 :  return column === 5 ? data.replace(/<.*?>/ig, "") : data; break;
                    case 6 :  return column === 6 ? data.replace(/<.*?>/ig, "") : data; break; 
                    default : return data; break;
                }
            } 
        } 
    }
};  

来源：https://stackoverflow.com/questions/35986288/trying-to-strip-html-from-datatables-during-export