[英]Regex: extract before, after character
給定以下字符串
stringData= "goal01=4 goal02=2 goal06=3 goal09=1 goal12=5 goal13=2 goal14=4 planet=52 people=48 Inclusion=4 HealthWellness=2 SustainableInfrastructure=4 ResponsibleConsumption=9 Environment=2"
我需要一個正則表達式來解析以下兩個變體
stringColumns = stringData(regex that //fetch before '=' and add ',' to string i.e goal01,goal02,planet etc..)
stringValues= stringData(regex that //fetch after '=' and same as above 4,2,3,52, etc..)
因為我需要將它們拆分以構建 sql 插入語句,例如
sqlSyntax = "INSERT INTO [table] ("'+stringColumns+'") VALUES ("'+stringValues+'")"
我試過^([^=])+
並且它只匹配第一個目標goal01
我需要什么來獲取所有剩余部分?
您不需要正則表達式。 簡單地用空格分割然后用等號並拉出必要的字符:
var stringData = "goal01=4 goal02=2 goal06=3 goal09=1 goal12=5 goal13=2 goal14=4 planet=52 people=48 Inclusion=4 HealthWellness=2 SustainableInfrastructure=4 ResponsibleConsumption=9 Environment=2"; var dataArray = stringData.split(" ") var stringColumns = dataArray.map(item => item.split("=")[0]).join(","); var stringValues = dataArray.map(item => item.split("=")[1]).join(","); console.log(stringColumns); console.log(stringValues);
這是 ES5 等效項,以防您無法使用 ES6 箭頭函數:
var stringData = "goal01=4 goal02=2 goal06=3 goal09=1 goal12=5 goal13=2 goal14=4 planet=52 people=48 Inclusion=4 HealthWellness=2 SustainableInfrastructure=4 ResponsibleConsumption=9 Environment=2"; var dataArray = stringData.split(" ") var stringColumns = dataArray.map(function(item) { return item.split("=")[0]; }).join(","); var stringValues = dataArray.map(function(item) { return item.split("=")[1]; }).join(",");; console.log(stringColumns); console.log(stringValues);
但是,如果您明確想使用正則表達式來執行此操作,則可以執行以下操作:
var stringData = "goal01=4 goal02=2 goal06=3 goal09=1 goal12=5 goal13=2 goal14=4 planet=52 people=48 Inclusion=4 HealthWellness=2 SustainableInfrastructure=4 ResponsibleConsumption=9 Environment=2"; var stringColumns = stringData.match(/[A-Za-z0-9]+(?==)/g).join(","); var stringValues = stringData.match(/(?<==)[0-9]+/g).join(","); console.log(stringColumns); console.log(stringValues);
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