How to detect existing and non-empty string-JavaScript classic cases-php.cn

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JavaScript classic cases

Chapter1 Regular processing of strings and time objects
1-1 Difference between object/basic type/literal
1-2 Extract a list from a string
1-3 How to detect existing and non-empty string
1-4 Replace matching substring with new string
1-5 Get the content that meets the conditions and highlight the results (1)
1-6 Obtain content that meets the conditions and highlight the results (2)
1-7 The wonderful use of capturing parentheses in regular expressions
1-8 simple digital clock
Chapter2 Commonly used asynchronous request processing techniques
2-1 Parse the form data submitted in object mode during the get request
2-2 Handle an instance of GET request
2-3 Handle an instance of POST request
2-4 Send request data to the server in JSON format
Chapter3 Class encapsulation and function calling
3-1 How to encapsulate private members in a class
3-2 Application of closure callback in animation design
3-3 Track function execution through execution context

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