How to remove row in 2d array in javascript

Question

How to remove row in two dimensional array in JavaScript with row number. If I want to delete all elements in row number 4 then how can do it??

Answer 1

Just call the splice(4, 1) method, when 4 is row number and 1 is number of rows to remove -

twoDimensionalArray.splice(4, 1); // remove 4th row

Also shift() and pop() are very handy methods which remove first and last rows accordingly -

twoDimensionalArray.shift(); // to remove first row
twoDimensionalArray.pop(); // to remove last row