Returns a substring beginning at a specified location and having a specified length.
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stringvar.substr(start [, length ]) |
Arguments
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stringvar
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Required. A string literal or String object from which the substring is extracted.
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start
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Required. The starting position of the desired substring. The index of the first character in the string is zero.
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length
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Optional. The number of characters to include in the returned substring.
Remarks
Example
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".
} |
Requirements
See Also