A brief analysis of interval calls and delayed calls in JavaScript_Basic knowledge

Using the setInterval method, you can call the function in a loop at a specified interval until the clearInterval method cancels the loop

When using the clearInterval method to cancel a loop, the call to the setInterval method must be assigned to a variable, and then the clearInterval method refers to the variable.

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Use setTimeout and clearTimeout to complete the delay call, run the specified function after the specified delay time, and execute it only once. The usage of clearTimeout is the same as the usage of clearInterval method.

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