arraylist中的remove方法: publicE remove(intindex) {//先检查下标索引是是否越界rangeCheck(index);//ArrayList的修改次数加1modCount++;//获取索引对应的元素值E oldValue =elementData(index);//获取删除元素后,需要移动的元素的个数intnumMoved = size - index - 1;if(numMoved > 0)//将元素进行移动拷...
let index= -1//循环索引const indexes = []//要被删除的元素的索引const { length } = array//数组长度while(++index <length) { const value= array[index]//数组当前值if(predicate(value, index, array)) {//如果根据当前值调用predicate后返回true,result数组里push进值,indexed数组里push进索引result....
EDIT: in fact, you could implement similar logic to Resig'sJavaScript Array Removeto allow for slice-like behavior for removing array elements (e.g. supplying-1to remove last element). arLevi, emlai, and ManeKuldeep reacted with thumbs up emoji ...
1.1、for循环中使用remove(int index),列表从前往后遍历 首先看一下ArrayList.remove(int index)的源码,读代码前先看方法注释:移除列表指定位置的一个元素,将该元素后面的元素们往左移动一位。返回被移除的元素。 源代码也比较好理解,ArrayList底层是数组,size是数组长度大小,index是数组索引坐标,modCount是被修改次数...
* 扩展Array,添加remove方法 * @param val */ Array.prototype.remove = function(val) { var index = this.indexOf(val); if (index > -1) { this.splice(index, 1); } }; 使用样例: var arr = new Array(); arr.push("a"); arr.push("b"); ...
public E remove(int index) { rangeCheck(index); modCount++; E oldValue = elementData(index); int numMoved = size - index - 1; if (numMoved > 0) System.arraycopy(elementData, index+1, elementData, index, numMoved); elementData[--size] = null; // clear to let GC do its work re...
Turns off error checking for valid array indexes and the correct number of dimensions of the array.By default Visual Basic makes a check on every access to an array to determine if the index is within the range of the array. If the index is outside the bounds of the array, an error ...
JSONArray.Remove(Int32) Method Reference Feedback Definition Namespace: Org.Json Assembly: Mono.Android.dll Removes and returns the value at index, or null if the array has no value at index. C# Ikkopja [Android.Runtime.Register("remove", "(I)Ljava/lang/Object;", "GetRemove_I...
Removes one or more elements starting at a specified index in an array.複製 void RemoveAt( INT_PTR nIndex, INT_PTR nCount = 1 ); ParametersnIndex An integer index that is greater than or equal to 0 and less than or equal to the value returned by GetUpperBound. nCount The number ...
QByteArray toByteArray() const QChar toChar() const QDate toDate() const QDateTime toDateTime() const double toDouble(bool * ok = 0) const float toFloat(bool * ok = 0) const int toInt(bool * ok = 0) const QJsonArray toJsonArray() const ...