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[Jquery] Solve ajax not being able to assign values to external variables

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Posted on 9/27/2019 4:23:10 PM | | |
Because Ajax acquires data asynchronously by default, your program continues to execute downwards when executing Ajax, so that your variable is not assigned by the Ajax method.



Set async:false in ajax; That is, synchronization
When async is false, it means that the ajax request is synchronous, then this API defaults to calling the returned result directly through the $.ajax() method to get the value, not through the success callback function, so the success callback function will not be called.








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