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List of articles

• • Preface
  • Code display

Preface

Tips ： You can introduce a topic here , Remember to delete the example .

for example ： When we are developing a project, we may encounter some problems to obtain the screen width ,dp px The mutual transformation of , Of course, we can't copy and paste every time we use it . At this time, we need a sharp weapon - Tool class . This tool class contains some of our common methods , In one word, we can get the desired results , It not only simplifies our code, but also saves us valuable time . meanwhile , A good software engineer , Universal tools are his magic weapon to protect himself .（ This paragraph is quoted from ：Android Project development must -Utils Establishment and use of class ）

Code display

Tips ： Here you can paste the specific code parameters of the tool , Remember to delete the example .

for example ： Judge url：

const reg = /(((^https?:(?:\/\/)?)(?:[-;:&=\+\$,\w][email protected])?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w][email protected])[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[\w]*))?)$/g;
 
export function isUrl(path) {
  return reg.test(path);
}