How do I manipulate using DOM Table in JavaScript?

HTMLTableElement

HTMLTableElement interface provides special properties and for manipulating the layout and presentation of tables in an HTML document.

Properties
caption
tHead
tFoot
rows
tBodies

Methods
createCaption()
deleteCaption()
createTHead()
deleteTHead()
createTFoot()
deleteTFoot()
insertRow()
deleteRow()

Properties

  • caption – This property represents the table caption. If no caption element is associated with the table, it can be null.
  • tHead – This property represents  the table’s <thead> element. Its value can be null if there is no such element.
  • tFoot – This property represents the table’s <tfoot> element. Its value can be null if there is no such element.
  • rows – This property rows returns a live HTMLCollection of all the rows in the table, including the rows contained within any <thead>, <tfoot>, and <tbody> elements. Although the property itself is read-only, the returned object is live and allows the modification of its content.
  • tBodies – This read-only property returns a live HTMLCollection of the table bodies. Although the property is read-only, the returned object is live and allows the modification of its content.

Methods

  • createCaption() – This method returns the caption for the table. If no caption element exists on the table, this method creates it, then returns it.
  • deleteCaption() – This method removes the caption from the table. If there is no caption associated with the table, this method does nothing.
  • createTHead( ) – This method returns the <thead> element association with the table, of type HTMLTableSectionElement. If there is no such element associated to the table, this method creates it, then returns it.
  • deleteTHead() – This removes a <thead> element from the table.
  • createTFoot() – This method returns the <tfoot> element associated with the table, of type HTMLTableSectionElement. If there is no footer for this table, this methods creates it, then returns it.
  • deleteTFoot() – This method removes a <tfoot> element from the table.
  • insertRow() method inserts a new row in the table and returns a reference to the new row.

Syntax: – var row = HTMLTableElement.insertRow(index = -1);

index is the row index of the new row.
row is assigned a reference to the new row. A reference to HTMLTableRowElement.
If index is -1 or equal to the number of rows, the row is appended as the last row. If index is greater than the number of rows, an IndexSizeError exception will result. If index is omitted it defaults to -1.
If a table has multiple tbody elements, by default, the new row is inserted into the last tbody.

  • deleteRow() method removes a row from the table. If the number of rows to delete, specified by the parameter, is greater or equal to the number of available rows, or if it is negative and not equal to the special index -1, representing the last row of the table, the exception INDEX_SIZE_ERR is thrown.

Syntax: – HTMLTableElement.deleteRow(index)

an index is an integer representing the row that should be deleted.
However, the special index -1 can be used to remove the very last row of a table.

HTMLTableSectionElement

The HTMLTableSectionElement interface provides special properties and methods for manipulating the layout and presentation of sections, that is headers, footers and bodies, in an HTML table.

Properties
rows

Methods
insertRow()
deleteRow()

  • Rows – This returns a live HTMLCollection containing the rows in the section. The HTMLCollection is live and is automatically updated when rows are added or removed.
  • insertRow() – It inserts a new row just before the given position in the section. If the given position is not given or is -1, it appends the row to the end of section. If the given position is greater (or equal as it starts at zero) than the amount of rows in the section, or is smaller than -1, it raises a DOMException with the IndexSizeError value.
  • deleteRow() – It removes the cell at the given position in the section. If the given position is greater (or equal as it starts at zero) than the amount of rows in the section, or is smaller than 0, it raises a DOMException with the IndexSizeError value.

HTMLTableRowElement

The HTMLTableRowElement interface provides special properties and methods for manipulating the layout and presentation of rows in an HTML table.

Properties
cells
rowIndex
sectionRowIndex

Methods
insertCell()
deleteCell()

Properties

  • cells – It returns a live HTMLCollection containing the cells in the row. The HTMLCollection is live and is automatically updated when cells are added or removed.
  • rowIndex – It returns a long value which gives the logical position of the row within the entire table. If the row is not part of a table, returns -1.
  • sectionRowIndex – It returns a long value which gives the logical position of the row within the table section it belongs to. If the row is not part of a section, returns -1.

Methods

  • insertCell() – This method inserts a new cell into a table row and returns a reference to the cell.

Syntax: – var cell = HTMLTableRowElement.insertCell(index = -1);

HTMLTableRowElement is a reference to an HTML table row element.
index is the cell index of the new cell.
cell, is assigned a reference to the new cell.
If index is -1 or equal to the number of cells, the cell is appended as the last cell in the row. If index is greater than the number of cells, an IndexSizeError exception will result. If index is omitted it defaults to -1.

Methods

  • deleteCell() – It removes the cell at the given position in the row. If the given position is greater (or equal as it starts at zero) than the amount of cells in the row, or is smaller than 0, it raises a DOMException with the IndexSizeError value.
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