javascript global variable not updating

JavaScript -- Item5 global variable that you don't know1. Use as few global objects as possible The problem with global variables is that your JavaScript Application and all the code on the Web page share these global variables. They live in the

One, try to use the global object as little as possible The problem with global variables is that both your JavaScript application and all the code on the Web page share these global variables, and they live in the same global namespace, so naming

2016.3.23 _ JavaScript basics _ 3 _ 14th days Recently, I caught a cold and got tired. At the same time, I also found that the quality of my article cannot be guaranteed by updating an article every day. Instead of writing some hydrology every day,

Original: https://www.cnblogs.com/ys-ys/p/5158510.html--------------------------------------------------------------------------------Thank you for this good article from the Broken Wolf, as well as the authors who wrote these points of knowledge

The JavaScript programming language, as the most popular client-side scripting language, has long been known to many WEB developers. With the advent of the Web2.0 era and the wide application of Ajax technology, JavaScript has gradually attracted

Brief introduction In many traditional languages (c/c++/java/c#, etc.), functions are present as a second-class citizen, you can only declare a function with the keyword of the language and call it, if you need to pass the function as an argument

JavaScript programming language, as the most popular Client scripting language, has long been familiar to many Web developers. With the advent of the Web2.0 era and the wide application of Ajax technology, JavaScript has gradually attracted more

For engineers who are familiar with C + + or the Java language, JavaScript is flexible, easy to understand, and relatively loosely formatted for code. It's easy to learn and apply to your own code. Also because of this, JavaScript coding norms are

For Engineers familiar with the C/C ++ or Java language, JavaScript is flexible, easy to understand, and requires relatively loose code formats. It is easy to learn and use it in your own code. Because of this, JavaScript coding standards are often

For Engineers familiar with the C/C ++ or Java language, JavaScript is flexible, easy to understand, and requires relatively loose code formats. It is easy to learn and use it in your own code. Because of this, JavaScript coding standards are often