trying .repeat for string

[threedeeNYC]

For some reason my .repeat isnt working for a text string.

If i wanted five 0's

I wanted '0'.repeat(5);

not working. 

any help is appreciated.

[Tomas Sinkunas]

In what context are you using this method? C++, Expression, CEP extension, or ExtendScript?

If it's ExtendScript, then this method will not work, since ExtendScript uses very old JavaScript version (ECMA version 3.0) that does not have this method. You'll have to use the for loop to concatinate strings to achive what you are afterr.

[threedeeNYC]

Thank you. Yes. Extendscript. This makes sense. I'll jump in and give it a shot. 

[threedeeNYC]

mName = "My_Diffuse_[00000-00030].png" //establish name

numSlice = mName.lastIndexOf("["); //get number index
numSlice2 = mName.lastIndexOf("-"); //get number index
zeroAmount = numSlice2-numSlice; // calculate amount of characters needed

sName = mName.slice(0, numSlice); //slice mName based on numSlice. I remove the "[00000-00030].png"

//this for loop i wat to add the proper amount of 0's at the end of the sliced file name
for (i = 1; i < zeroAmount; i++){
    sName.concat("0");
}
  
//show me result.
alert(sName);

[threedeeNYC]

Above is my latest. I think im doing things right, its just not working.

[Tomas Sinkunas]

Your for loop is incorrect. Try this instead:

for (i = 1; i < zeroAmount; i++){
  sName += "0";
}

[threedeeNYC]

thank you. That did it.
Minor thing that i worked around is now this for loop breaks the for loop
it was embedded in.
Ill try to solve that but if i added multiple if statements it
didnt break the loop. weird

--
Regards,
Thomas Maloney

[Tomas Sinkunas · Accepted solution]

It would be best if you rewrote that repeat function as a separate method, so you could simply use this: 

sName = sName + repeatString('0', zeroAmount);. This way you don't have to use a nested for loop, like you have it right now.

And the repeatString function would look like this:

function repeatString(string, times) {
	var result = '';
    for (var i = 0; i < times; i++) {
        result += string;
    }

    return result;
}

[Mathias Moehl]

A @Tomas Sinkunas says.

Here you find a polyfill:

https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/String/repeat

You can copy and paste the code of the polyfill in your program and it will add the missing repeat method.