How can I delete an value from an array in jQuery?
var prodCode = ["001","002","003","004","005","006","007","008"];
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3 Answers
hopefully i got your question right: you want to delete a single element of an array
var index = $.inArray(value, array);
if (index >= 0) {
array.splice(index, 1);
}
otherwise
$.each(arrayWithValuesToRemove, function (index, element) {
var index = $.inArray(element, array);
if (index < 0) {
return;
}
array.splice(index, 1);
});
if you just want a random removal
var desiredIndex = Math.floor(Math.random() * array.length);
array.splice(desiredIndex, 1);
if you want to keep the index, but not it's value (combine with any of the upper examples):
delete array[index];
if you want to write your own compare-method (eg. object as value):
var compareFunction = function (element) {
// TODO your compare stuff
};
var getIndexFunction = function (array) {
for (var i = 0; i < array.length; i++) {
var element = array[i];
if (compareMethod(element)) {
return i;
}
}
return -1;
};
var index = getIndexFunction(myArray);
if (index >= 0) {
myArray.splice(index, 1);
}
1 Comment
selladurai
if i want to delete a particular index value means, how to do?
I'm not sure I get your question correctly, but if you want to remove a random element in the middle of the array, you can
array.splice(Math.floor(Math.random() * array.length), 1);
1 Comment
selladurai
if i want to delete a particular index value means, how to do?
var prodCode = ["001","002","003","004","005","006","007","008"];
var randomElementIndex = Math.floor( Math.random() * prodCode.length );
var removedElement = prodCode.splice(randomElementIndex, 1);
console.log(prodCode); //doesn't have removedElement with the index randomElementIndex anymore
Removes a random element from the array.
9 Comments
selladurai
if i want to delete a particular index value means, how to do?
Ege Özcan
instead of generating the index randomly, you can just provide it to the splice method of the array literal
Ege Özcan
If you want to get the index of an element from its value, see: developer.mozilla.org/en/JavaScript/Reference/Global_Objects/…
Ege Özcan
hence the link to MDN that you obviously didn't check out =) (gives a workaround for non-supporting browsers)
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