字符串startswith

Check if a string starts with the value of the string passed as parameter.

检查字符串是否以作为参数传递的字符串的值开头。

You can call startsWith() on any string, provide a substring, and check if the result returns true or false:

您可以在任何字符串上调用startsWith() ，提供一个子字符串，然后检查结果是否返回true或false ：

'testing'.startsWith('test') //true'going on testing'.startsWith('test') //false

This method accepts a second parameter, which lets you specify at which character you want to start checking:

此方法接受第二个参数，该参数可让您指定要开始检查的字符：

'testing'.startsWith('test', 2) //false'going on testing'.startsWith('test', 9) //true

翻译自:

字符串startswith