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1. The lastIndex attribute returns the last index location of the matched content, that is, the starting position of the next match. Note that the string index starts from 0.
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<Html> </ptml>
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2. lastMatch ($ &) attribute, read-only attribute. If no matching information exists, the value of this attribute is a null string.
<Html> </ptml>
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3. Read-only static attribute of the lastParen attribute. This attribute returns the value of the last child match obtained in the last match detection. If no child match exists, an empty string is returned.
<Html> </ptml>
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4. The leftContext attribute returns the character information on the left side of the matching content. The initial value of this attribute is a Null String. If the value matches this attribute
<Html> </ptml>
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5. The rightContext attribute returns the character information to the right of the matching content. The initial value of the read-only static attribute is a Null String. If there is a match, the information to the right of the matching content is returned.
<Html> </ptml>
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