Below is some code that I am working with.
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("JavaScript");
engine.eval("[1, 2, 3].contains(1)");
However, when I run the code, it throws the following error:
javax.script.ScriptException: TypeError: [1, 2, 3].contains is not a function in <eval> at line number 1
I found that using indexOf(1) instead seems to work, but I am curious as to why I am unable to use contains with this parser.
If you need to check if an element is in an array, you can use Array.prototype.includes.
Here's how your code could look like:
engine.evaluate("[1, 2, 3].includes(1)");
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