Array
的操作方法和 String
的操作方法老是弄混>_<,下面就对于这两个对象的常用操作方法进行比较~~
Array
☞ 操作方法
-
concat():returns a new array comprised of the array on which it is called joined with the array(s) and/or value(s) provided as arguments.
var new_array = old_array.concat(value1[, value2[, ...[, valueN]]])
-
slice():returns a shallow copy of a portion of an array into a new array object.→ 切片
arr.slice([begin[, end]])
-
splice():changes the content of an array by removing existing elements and/or adding new elements.→ 拼接
array.splice(start, deleteCount[, item1[, item2[, ...]]])
String
☞ 操作方法
-
concat():将一个或多个字符串与原字符串连接合并,形成一个新的字符串并返回。
str.concat(string2, string3[, ..., stringN])
-
slice():extracts a section of a string and returns a new string.→ 切片
str.slice(beginSlice[, endSlice])
-
substr():returns the characters in a string beginning at the specified location through the specified number of characters.(返回一个从指定位置开始的指定长度的子字符串。)
str.substr(start[, length])
-
substring():returns a subset of a string between one index and another, or through the end of the string.(返回位于 String 对象中指定位置的子字符串。)
str.substring(indexStart[, indexEnd])
☞ 模式匹配方法
match()
search()
replace()
-
split():通过把字符串分割成子字符串来把一个 String。 对象分割成一个字符串数组。→ 拆分
str.split([separator][, limit])