Replace string with multiple strings

user11264446

I have a text where I want to replace all the letters "A" with different values. I have an array ["b", "c", "d"] and I want to replace first found "A" with "b", the second one with "c" and so on. Anyone, please help. Here is what I am trying and what I get

   var str = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.";
		var a = ["b", "c", "d"];
		var c = str.replace(/a/g, a);
		console.log(c);

Nina Scholz

You could take a closure over the index and increment the index and adjust with the lenght of the array.

var str = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.",
    a = ["b", "c", "d"];
    c = str.replace(/a/g, (i => () => a[i++ % a.length])(0));

console.log(c);

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