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JavaScript eval

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The eval function in JavaScript evaluates the expression passed as an argument and executes it if there is an operation.

The syntax is as follows: eval(string).

JavaScript eval examples

Here is a series of demonstrative examples on the use of eval.



console.log(eval('2 + 13'));
var x = 10;
var y = 3;
console.log(eval('x + y'));
console.log(eval(' x / y'));

However, remember that this function is slower than the alternatives.

It can also be dangerous as it runs the code with page administrator privileges.

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