var array=[]; array.push(array); //insert the array value using push methods. for (var i = 0; ... ... <看更多>

When the length property is set to zero, all elements of the array are automatically deleted. 3) Using splice() method. The third way to empty an array is to ... ... <看更多>

each() on objects, aka associative arrays. Someday an object of mine may happen to have a member named 'length' with a value exactly zero. $. ... <看更多>

使用 Array.prototype.filter() 回傳符合條件的元素，得到一個新陣列。 ... return indexOf.call( array, elem, i ); } len = array.length; ... ... <看更多>

1 Answer · jQuery returns an array with referenced objects, so @jchwebdev would want to test the length of that rather than the length of a property. · @ ... ... <看更多>