Javascript Function not working in Edge

Question

I created a function in Javascript

function addName(okDelete = true){

	amountExtraStudents++;
	if(amountExtraStudents > 2){
	
		preisAktuell = 60;
	
	}
	if(!okDelete){
		jQuery('#teilnehmerExtra').append('<div class="teilnehmer-1"></div>');
	}else{
		jQuery('#teilnehmerExtra').append('<div class="teilnehmer-2"></div>');
	}
	eintragNummer++; 
	updateButtons();
	
}

But in Edge I get this error:

In Safari I dont get any Error - but the Function - and all the other functions in the rest of the Script Block are not working.

It works out fine in Chrome, Firefox and Opera, but not in Safari, IE and Edge...

Is there something incompatible with the Browser?

In ES6 it's good stuff, but anything before that it's no good. @SimonSchüpbach — Albzi
– Albzi, Commented May 24, 2016 at 15:18
Isnt that giving the possibility to set a "standard" value, if no parameter is given? — Niklas Riecken
– Niklas Riecken, Commented May 24, 2016 at 15:18
Should only work in Chrome or FF, surprised it works in Safari? developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — chiliNUT
– chiliNUT, Commented May 24, 2016 at 15:18

Quentin · Accepted Answer · 2016-05-24 15:18:14Z

10

The error is occuring when you use the 'default parameters' feature introduced in ES6. Edge does not support it.

An ES5 version would be:

function addName(okDelete){
    if (typeof okDelete === "undefined") {
        okDelete = true;
    }

You might also consider using a tool such as Babel to transpile your ES6 into ES5.

answered May 24, 2016 at 15:18

Quentin

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2 Comments

Albzi Over a year ago

Was editing my answer without realizing you beat me, oops! +1, this is the answer OP wants.

Niklas Riecken Over a year ago

Thank you very much! This is working out fine - I didnt know, that this is not possible in ES5... :)

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