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This article introduces the relevant knowledge of "how to use the if else sentence of JavaScript". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

F...else statement

Use the if... else statement to execute code when the condition is true and other code when the condition is false.

Grammar

If (condition)

{

Code executed when the condition is true

}

Else

{

Code executed when the condition is not true

}

Example

When the time is less than 20: 00:00, a greeting "Goodday" is generated, otherwise a greeting "Goodevening" is generated.

If (time

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