startsWith

public bool startsWith(string substr)

true if the string begins with the specified substring and false otherwise.

Parameters

substr

The substring to check for at the beginning of the string.

Checks if the string begins with the specified substring.

This method is case-sensitive.

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import System;   string str = "This is a test"; Console.log(str.startsWith("This")); // true Console.log(str.startsWith("fog"));  // false

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import System;   string sentence = "This is a test."; string substr = "this"; Console.log(     sentence.toLowerCase().startsWith(substr.toLowerCase()) );