How to make a combination substr and instr in javascrip

Hi all

I need to extract information in a javascript function.

In sql, we can do as this substr (: P1_ITEM, 1, instr(:P1_ITEM,'.',1,4)-1)

f.e.
01.02.03.04.05-> 01.02.03.04
001.002.003.004.005-> 001.002.003.004


How do I do it in javascript.

Thanks in advance

lukx

Hi lukx,

You can use the following javascript function:

function processText(pString, pSearchString, pOccurrenceNum)
{
  var j = 0;
  for(var i = 0; i < pOccurrenceNum; i++)
  {
    j = pString.indexOf(pSearchString,j) + 1;
  }
  j = j - 1;
  return pString.substr(0,j);
}

To treat, for example, the second example, you've shown, you would have to make the following call:

processText("001.002.003.004.005", ".", 4)

Maybe this isn't the best solution, but as I saw it in the JavaScript API that indexOf and lastIndexOf are only for the first and the last accident, that's why I included the loop for. I hope this helps.

Kind regards

Sergio

Tags: Database

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