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RegExp.index

The object associated with this property is always the global RegExp object.

The index property is zero-based. The initial value of the index property is –1. Its value changes whenever a successful match is made.

The following example illustrates the use of the index property. This function iterates a search string and prints out the index and lastIndex values for each word in the string.

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function RegExpTest(){ var ver = Number(ScriptEngineMajorVersion() + "." + ScriptEngineMinorVersion()) if (ver >= 5.5){ var src = "The rain in Spain falls mainly in the plain."; var re = /\w+/g; var arr; while ((arr = re.exec(src)) != null) print(arr.index + "-" + arr.lastIndex + "\t" + arr); } else{ alert("You need a newer version of JScript for this to work"); } }

Copy Code

function RegExpTest(){
  var ver = Number(ScriptEngineMajorVersion() + "." + ScriptEngineMinorVersion())
  if (ver >= 5.5){
    var src = "The rain in Spain falls mainly in the plain.";
    var re = /\w+/g;
    var arr;
    while ((arr = re.exec(src)) != null)
       print(arr.index + "-" + arr.lastIndex + "\t" + arr);
  }
  else{
    alert("You need a newer version of JScript for this to work");
  }
}

Version 3

Applies To: RegExp Object (JScript 5.6)

Reference

Regular Expression Syntax (Scripting)

Remarks

Example

Requirements

See Also

Reference

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