Uniapp custom environment variables

1、 Create in the root directory package.json file , Write the following , Refer to the official website for specific configuration items package.json

{
    
	"uni-app": {
    
		"scripts": {
    
			"dev": {
      //  Configuration item name 
				"title":"h5 Test environment ", //  Name on the menu toolbar 
				"env": {
    
					"UNI_PLATFORM": "h5" //  platform 
				 },
				"define": {
     
					"H5-DEV": true //  Variable name 
				}
			},
			"prod": {
    
				"title":"h5 Production environment ",
				"env": {
    
					"UNI_PLATFORM": "h5"  
				 },
				"define": {
     
					"H5-PROD": true 
				}
			}
		}    
	}
}

2、 Using environment variables

// #ifdef H5-DEV
console.log('dev')
// #endif
// #ifdef H5-PROD
console.log('prod')
// #endif

3、 Compile the package