Getting started with the slice method of JavaScript string objects (for string interception)_Basic knowledge

JavaScript slice method

The slice method is used to intercept a part of a string and return that part of the string. Its syntax is as follows:

Copy code The code is as follows:

str_object.replace(start, end)

Parameter description:

参数	说明
str_object	要操作的字符串（对象）
start	必需。要截取的开始位置，从 0 开始计算；如果为负数，则从字符串末尾反向开始计算
end	可选。要截取的结束位置，如果省略则到字符串结束；如果为负数，则从字符串末尾反向开始计算

slice method instance

Copy code The code is as follows:

Run this example, output:

Copy code The code is as follows:

bcdef
bc
ef
cd