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This article mainly introduces how to use the eval function in js, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand it.

The eval () function evaluates the JavaScript string and executes it as script code. If the parameter is an expression, the eval () function executes the expression. If the argument is a Javascript statement, eval () executes the Javascript statement.

Grammar

Eval (string)

Parameters:

● string: required. The string to evaluate that contains the JavaScript expression to evaluate or the statement to execute.

Description: all major browsers support the eval () function

Example:

Eval ("Xerox 10, politics 20, console.log (Xeroy)"); console.log (eval ("2x2")); console.log (eval ("Xerox 17"))

Output:

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