Javascript中的Array对象没有Remove方法,在网上找到了一函数 functionRemoveArray(array,attachId) { for(vari=0,n=0;i<array.length;i++) { if(array[i]!=attachId) { array[n++]=array[i] } } array.length-=1; } 接着可以将RemoveArray函数加入到Array的prototype中 Array.prototype.remove=function(...
splice 方法可以移除从 start 位置开始的指定个数的元素并插入新元素,从而修改 arrayObj。返回值是一个由所移除的元素组成的新 Array 对象。 Java代码 : var arr = new Array(0,1,2,3,4); // 删除从2开始的两个元素,位置从0开始 // 返回移除元素的数组 var reArr = arr.splice(2,2); // 可以在移...
array.remove(1,2); // Remove the last and second-to-last items from the array array.remove(-2,-1); 如果不想扩展 Array 的 prototype 的话,也可以向下面这样写成普通函数: Javascript代码 Array.remove =function(array, from, to) { varrest = array.slice((to || from) + 1 || array.leng...
/**数组根据数组对象中的某个属性值进行排序的方法 * 使用例子:newArray.sort(sortBy('number'),false) //表示根据number属性降序排列;若第二个参数不传递,默认表示升序排序 * @param attr 排序的属性 如number属性 * @param rev true表示升序排列,false降序排序 * */ sortBy: function(attr,rev){ //第二...
博客分类: javascriptJavaScriptprototype function RemoveArray(array, attachId) { for (var i = 0,n = 0; i < array.length; i++) { if (array[i] != attachId) { array[n++] = array[i] } } array.length -= 1;} Array.prototype.remove = function (obj) { return RemoveArray(this, ...
The pop() method removes and returns the last element of an array. The shift() method removes and returns the first element of an array. Ways to Remove Item in Javascript But here, I will show you how to remove a specific item from a javascript array in multiple ways. ...
The multiple specified elements to remove from an array are[13, 7, 17]. When you click the button given above, these elements get removed from the given array. You can check the output to see the result of the method. Remove with For Loop with filter() Function of Javascript ...
Remove duplicates elements from an array is a common array task Javascript offers different alternatives to accomplish it. You can use a mix of methods likeArray.filterandArray.indexOfor a more complex method and also more flexible asArray.reduceor just a simpleArray.forEachthat allows you tu ...
This call removes empty string items from the array. function UseStringSplitter() { var value = "a,b,,c,,d"; var array = value.splitWithStringSplitOptions(",", ""); console.log(value); } Alternatively, following method can also be used to remove specific items from any JavaScr...
console.log(remove_array_element([2, 5, 9, 6], 5)); Live Demo: For more Practice: Solve these Related Problems: Write a JavaScript function that removes a specific element from an array using the filter() method. Write a JavaScript function that uses splice() to remove the first occurr...