substr Method (JScript 5.6)


stringvar.substr(start [, length ])

stringvar: Required. A string literal or String object from which the substring is extracted.

start: Required. The starting position of the desired substring. The index of the first character in the string is zero.

length: Optional. The number of characters to include in the returned substring.

If length is zero or negative, an empty string is returned. If not specified, the substring continues to the end of stringvar.

The following example illustrates the use of the substr method.

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function SubstrDemo(){ var s, ss; //Declare variables. var s = "The rain in Spain falls mainly in the plain."; ss = s.substr(12, 5); //Get substring. return(ss); // Returns "Spain". }

Applies To: String Object (JScript 5.6)

Arguments