jQuery 如何从jquery中的数组对象中删除项目
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How to remove item from array object in jquery
提问by Kalaivani
How to remove item from jquery array object.
如何从 jquery 数组对象中删除项目。
I used splice method as follows. But it slice next item of array[i].
我使用拼接方法如下。但它切片数组 [i] 的下一项。
$.each(array, function (i, item) {
var user = array[i];
jQuery.each(array2, function (index, idata) {
debugger
if (idata.Id == user.UserId) {
tempFlag = 1;
return false; // this stops the each
}
else {
tempFlag = 0;
}
});
if (tempFlag != 1) {
//removes an item here
array.splice(user, 1);
}
})
Can anyone tell me where i am wrong here?
谁能告诉我我错在哪里？
回答by Anand Soni
You should try this to remove element from array in jQuery:
您应该尝试从 jQuery 中的数组中删除元素：
jQuery.removeFromArray = function(value, arr) {
return jQuery.grep(arr, function(elem, index) {
return elem !== value;
});
};
var a = [4, 8, 2, 3];
a = jQuery.removeFromArray(8, a);
Check this Link for more : Clean way to remove element from javascript array (with jQuery, coffeescript)
查看此链接了解更多信息：Clean way to remove element from javascript array (with jQuery, coffeescript)
回答by Guffa
You are using the value in useras index, i.e. array[i], instead of the value i.
您正在使用中的值user作为索引，即array[i]，而不是值i。
$.each(array, function (i, item) {
var user = array[i];
jQuery.each(array2, function (index, idata) {
debugger
if (idata.Id == user.UserId) {
tempFlag = 1;
return false; // this stops the each
} else {
tempFlag = 0;
}
});
if (tempFlag != 1) {
//removes an item here
array.splice(i, 1);
}
});
You may get problems from removing items from the array that you are currently looping, though...
但是，从当前循环的数组中删除项目可能会出现问题......
