what does it mean to have multiple equal signs on the same line?

Question

what does this line of code mean below? is it some some sort of ternary operation?

this.object01 = object02.attribute01 === someString;

this is using aurelia javascript

Answer 1

Break it down. There's two operations going on here: an assignment statement (one equals sign) and an equality check (three equals sign) which returns a boolean.

this.object01 is now a boolean containing true or false depending if object02.attribute01 === someString.