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If you are Xiaobai, this set of information can help you become a big bull. If you have rich development experience, this set of information can help you break through the bottleneck 2022web full set of video tutorial front-end architecture H5 vue node applet Video + data + code + interview questions. As the most representative language_ P ...

If you are Xiaobai, this set of information can help you become a big bull. If you have rich development experience, this set of information can help you break through the bottleneck 2022web full set of video tutorial front-end architecture H5 vue node applet Video + data + code + interview questions. Write the catalog title here Getting st ...

(1) Conversion of data types 1, Introduction to data type conversion In the program, there are often inconsistent data types, and data type conversion is required if the expected results are not obtained 1. Transfer from other types to number 1.1 string type to number console.log(Number('123')); //Convert string 123 to 123 1.2 integer: par ...

7. Convert to array Sometimes we have to convert some other data structures, such as sets or strings, into arrays. Class array: function parameters, dom collection Array.prototype.slice.call(arguments);Array.prototype.concat.apply([], arguments); character string: console.log('string'.split('')); // ["s", "t", "r", "i", "n", "g"]console.lo ...

1, do expression In essence, a block level scope is a statement that encapsulates multiple operations without a return value. { let t = f(); t = t * t + 1; } In the above code, the block level scope encapsulates the two statements together. However, there is no way to get the value of T outside the block level scope, because the block l ...

1 use background In order to transfer data across components, especially across multi-level components, using context can simplify the process and make it clearer. It should be noted that components that depend on context will be updated when the context changes (not controlled by shouldComponentUpdate) It should be noted that the context ...

Let's talk about the disadvantages of singleSpa Not flexible enough to dynamically load css filescss is not isolatedThere is no js sandbox mechanism (there is no global object, and the application switched every time is the same window) The front-end micro touch can be used for a while qiankun micro front-end framework is very mature and i ...

If you are Xiaobai, this set of information can help you become a big bull. If you have rich development experience, this set of information can help you break through the bottleneck 2022web full set of video tutorial front-end architecture H5 vue node applet Video + data + code + interview questions. preface Generally, when we develop sing ...

webpack-dev-server To realize the automatic compilation and display of files modified during development, you can use the live server plug-in with webpack's watch attribute of true and vscode, that is, observation mode // webpack.config.js module.exports = { watch: true, ... } However, this has several disadvantages: All source cod ...