Below I have a simple two dimensional array. If I want to remove the whole sub-array where index 0 of the sub array is equal to Susie, how would I do this?
var array1 = [["Ben", 17, 1], ["Susie", 12, 0], ["Thomas", 21, 1]];
Thanks
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2 Answers
You can traverse through the array and find the index and then do a splice.
var array1 = [["Ben", 17, 1], ["Susie", 12, 0], ["Thomas", 21, 1]];
console.log(array1);
for(var x=0; x<array1.length; x++) {
if(array1[x][0] == "Susie")
array1.splice(x,1);
}
console.log(array1);
here is a fiddle.
2 Comments
jskidd3
Although both answers do the job, I prefer this answer as I can understand exactly what it is doing. Thanks!
Artur Udod
just in case you're interested: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… a short reference on the 'filter' method.
var initialArray = [["Ben", 17, 1], ["Susie", 12, 0], ["Thomas", 21, 1]];
var subArray = initialArray.filter(function(item) { return item[0] != 'Susie'; });
fiddle: http://jsfiddle.net/XHEJt/1/