what does alert mean

Alert means warning in English. In JavaScript, alert() means popping up a warning box.

alert is a scripting language used in HTML DOM. (Recommended learning: web front-end video tutorial)

It is a common method of the window object in JavaScript or VBscript scripting language; its main usage is to define a certain After the function, by performing the corresponding operation, the language of the dialog box that pops up.

And the alert dialog box is usually used to provide some prompt information to the user. The most common one is the alert function.

alert function: Displays a warning dialog box, including an OK button.

Description: Generate an alarm action.

Syntax: Alert(String AlertInfo).

Parameter: AlertInfo alarm prompt information.

Remarks: Generate an alarm action and return the AlertInfo information to the top-level application module. This function has no return value. This function is only valid for user fields and technical analysis (technical indicators, K-line status, characteristic trends) , other formula types are not supported.

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