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If else statement inside return “ ” statement

Is this possible? I’m trying to hide the Approve Button if the column approvedby is not empty. This is from a Server-Side dataTable. My problem is I can’t find a way for if else to be used because I’m using return "".

This is the script.

$(function() {
    $('#example').DataTable( {
        dom: "Bfrtip",
        ajax: {
            url: "earnings_amendment_account_table.php",
            type: "POST"
        },
        serverSide: true,
        columns: [
            { data: "accountcode" },
            { data: "accounttitle" },
            { data: "accounttype" },
            { data: "approvedby" },
            { "data": "accountcode", "name": " ", "autoWidth": true, "render": function (data, type, full, meta) {
return "<button class='btn btn-success btn-sm btn-flat edit' data-id='"+full.accountcode+"'><i class='fa fa-edit'></i> Edit</button> <button class='btn btn-danger btn-sm btn-flat delete' data-id='"+full.accountcode+"'><i class='fa fa-trash'></i> Delete</button> if (empty("+full.approvedby+")) { <button class='btn btn-warning btn-sm approve btn-flat' data-id='"+full.accountcode+"'><i class='fa fa-check-square-o'></i> Approve</button>}";}
                        }
        ],
        select: false,
        buttons: []
    } );
} );

This is the result. I can’t seem to find a way for if else to work inside return "".

hide approveby

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Answer

Try this

$(function() {
    $('#example').DataTable( {
        dom: "Bfrtip",
        ajax: {
            url: "earnings_amendment_account_table.php",
            type: "POST"
        },
        serverSide: true,
        columns: [
            { data: "accountcode" },
            { data: "accounttitle" },
            { data: "accounttype" },
            { data: "approvedby" },
            { 
                data: "accountcode",
                name: " ",
                autoWidth: true,
                render: function (data, type, full, meta) {
                    let html = "<button class='btn btn-success btn-sm btn-flat edit' data-id='"+full.accountcode+"'><i class='fa fa-edit'></i> Edit</button> ";
                    html += "<button class='btn btn-danger btn-sm btn-flat delete' data-id='"+full.accountcode+"'><i class='fa fa-trash'></i> Delete</button> ";
                    html += "<button class='btn btn-danger btn-sm btn-flat delete' data-id='"+full.accountcode+"'><i class='fa fa-trash'></i> Delete</button> ";

                    if (!full.approvedby)
                        html += "<button class='btn btn-warning btn-sm approve btn-flat' data-id='"+full.accountcode+"'><i class='fa fa-check-square-o'></i> Approve</button>";

                   return html;
                }
            }
        ],
        select: false,
        buttons: []
    } );
} );

Note I removed the empty() function you used in the if statement.

The reason why it didnt work is because you wrote the if statement as a string so it didnt process as a javascript code.

Here’s an example on how to write inline if statements in javascript.

return 'Hello my name is ' + (name === 'Miroslav' ? name : 'Anonymous') + ' and I just wrote an inline if statement';
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