bui.array Class
常用小方法
Methods
compare
(
Boolean
-
name -
arr -
[key]
比对数组是否已经存在,支持普通数组及JSON数组
Parameters:
-
nameString[字符串]
-
arrArray[数组]
-
[key]String optional[object的键名]
Returns:
Boolean:
[返回true|false]
Example:
//普通数组:
var arr = ["hello","bui","hi","bui"];
var isExist = bui.array.compare( "bui", arr );
// console.log(isExist) //结果: true
//JSON数组:
var arr = [{ "id":1,value:"hello"},{ "id":2,value:"bui"}];
var isExist = bui.array.compare( "bui", arr, "value" );
// console.log(isExist) //结果: true copy
(
Array
-
arr -
from -
[length]
复制数组某一部分
Parameters:
-
arrArray[数组]
-
fromNumber[从第几个复制]
-
[length]Number optional[复制多少个,不填则是到最后一个]
Returns:
Array:
[返回一个新的数组]
Example:
var arr = ["hello","bui","hi","easybui"];
var newArr = bui.array.copy( arr, 1 );
var newArr2 = bui.array.copy( arr, 1,2 );
// console.log(newArr) //结果: ["bui","hi","easybui"]
// console.log(newArr2) //结果: ["bui","hi"]excess
(
Array
-
name -
arr -
[key]
去除数组的多余数据,支持普通数组及JSON数组
Parameters:
-
nameString[字符串]
-
arrArray[数组]
-
[key]String optional[object的键名]
Returns:
Array:
[返回一个没有重复数据的数组]
Example:
//普通数组:
var arr = ["hello","bui","hi","bui"];
var newArr = bui.array.excess( "bui", arr );
// console.log(newArr) //结果: ["hello","bui","hi"]
//JSON数组:
var arr = [{ "id":1,value:"hello"},{ "id":2,value:"bui"},{ "id":3,value:"bui"}];
var newArr = bui.array.excess( "bui", arr, "value" );
// console.log(newArr) //结果: [{ "id":1,value:"hello"},{ "id":2,value:"bui"}] filter
(
Array
-
name -
arr -
[key]
筛选数组,支持普通数组及JSON数组
Parameters:
-
nameString[字符串]
-
arrArray[数组]
-
[key]String optional[object的键名]
Returns:
Array:
[返回筛选的元素]
Example:
//普通数组:
var arr = ["hello","bui","hi","easybui"];
var newArr = bui.array.filter( "bui", arr );
// console.log(newArr) //结果: ["bui","easybui"]
//JSON数组:
var arr = [{ "id":1,value:"hello"},{ "id":2,value:"bui"},{ "id":3,value:"easybui"}];
var newArr = bui.array.filter( "bui", arr, "value" );
// console.log(newArr) //结果: [{ "id":2,value:"bui"},{ "id":3,value:"easybui"}] index
(
Number
-
name -
arr -
[key]
返回存在的第1个位置,支持普通数组及JSON数组
Parameters:
-
nameString[字符串]
-
arrArray[数组]
-
[key]String optional[object的键名]
Returns:
Number:
[返回的位置如果大于0,则存在]
Example:
//普通数组:
var arr = ["hello","bui","hi","bui"];
var index = bui.array.index( "bui", arr );
// console.log(index) //结果: 1
//JSON数组:
var arr = [{ "id":1,value:"hello"},{ "id":2,value:"bui"}];
var index = bui.array.index( "bui", arr, "value" );
// console.log(index) //结果: 1 indexs
(
Array
-
name -
arr -
[key]
返回数组的所有索引,支持普通数组及JSON数组
Parameters:
-
nameString[字符串]
-
arrArray[数组]
-
[key]String optional[object的键名]
Returns:
Array:
[返回存在的索引数组]
Example:
//普通数组:
var arr = ["hello","bui","hi","bui"];
var index = bui.array.indexs( "bui", arr );
// console.log(index) //结果: [1,3]
//JSON数组:
var arr = [{ "id":1,value:"hello"},{ "id":2,value:"bui"}];
var index = bui.array.indexs( "bui", arr, "value" );
// console.log(index) //结果: [1]remove
(
Array
-
name -
arr -
[key]
删除数组的某个值或者对象,支持普通数组及JSON数组
Parameters:
-
nameString[字符串]
-
arrArray[数组]
-
[key]String optional[object的键名]
Returns:
Array:
[返回删除后的数组]
Example:
//普通数组:
var arr = ["hello","bui","hi","bui"];
var newArr = bui.array.remove( "bui", arr );
// console.log(newArr) //结果: ["hello","hi"]
//JSON数组:
var arr = [{ "id":1,value:"hello"},{ "id":2,value:"bui"}];
var newArr = bui.array.remove( "bui", arr, "value" );
// console.log(newArr) //结果: [{ "id":1,value:"hello"}]