Question

我正在使用Node JS和库替换文件

我正在使用一些函数到文件（functions.js）

并将另一个文件用于调用函数（index.js）

当我第一次启动脚本时，它可以工作，但是随后我重新启动了脚本，并且'] ['不能替换为'，'

Function.js

var priority = "";
var expectedValue = "";
var score1 = "";
var score2 = "";

/* some function*/

function generateJSON(key){
    var table = []


    table.push({"executionDate":date,
    "issueID":key,
    "priority":{
        "jira": priority, 
        "computed":score1
    },
    "expectedValue":{
        "jira": expected, 
        "computed":score2
    }
})

var json = JSON.stringify(table,null, 2);

fs.appendFile('templateLog1.json', json, 'utf8', function (err) {
    if (err) console.error(err)

});

}

function replaceCaracter(){
    const options = {
        files: 'templateLog1.json',
        from: '][',
        to: ',',
    };

    replace(options, (error, results) => {
        if (error) {
        return console.error('Error occurred:', error);
        }
        console.log('Replacement results:', results);
    });
}

Index.js

setTimeout(function() {
    functions.getAllIssueForSCII().then(function(json){
        for (let i=0; i<json.issues.length;i++){
            functions.generateJSON(json.issues[i].key);
            functions.replaceCaracter()
        }

    });
}, 1000)

实际结果：

[
{
    "executionDate": 1556197884153,
    "issueID": "SCII-10",
    "priority": {
    "jira": "Lowest",
    "computed": -25
    },
    "expectedValue": {
    "jira": "Low",
    "computed": -10
    }
}
,
{
    "executionDate": 1556197884153,
    "issueID": "SCII-7",
    "priority": {
    "jira": "Low",
    "computed": -10
    },
    "expectedValue": {
    "jira": "Low",
    "computed": -10
    }
}
][
{
    "executionDate": 1556197896877,
    "issueID": "SCII-10",
    "priority": {
    "jira": "Lowest",
    "computed": -25
    },
    "expectedValue": {
    "jira": "Low",
    "computed": -10
    }
}
][
{
    "executionDate": 1556197896877,
    "issueID": "SCII-7",
    "priority": {
    "jira": "Low",
    "computed": -10
    },
    "expectedValue": {
    "jira": "Low",
    "computed": -10
    }
}
]

预期结果：

[
{
    "executionDate": 1556197884153,
    "issueID": "SCII-10",
    "priority": {
    "jira": "Lowest",
    "computed": -25
    },
    "expectedValue": {
    "jira": "Low",
    "computed": -10
    }
}
,
{
    "executionDate": 1556197884153,
    "issueID": "SCII-7",
    "priority": {
    "jira": "Low",
    "computed": -10
    },
    "expectedValue": {
    "jira": "Low",
    "computed": -10
    }
}
,
{
    "executionDate": 1556197896877,
    "issueID": "SCII-10",
    "priority": {
    "jira": "Lowest",
    "computed": -25
    },
    "expectedValue": {
    "jira": "Low",
    "computed": -10
    }
}
,
{
    "executionDate": 1556197896877,
    "issueID": "SCII-7",
    "priority": {
    "jira": "Low",
    "computed": -10
    },
    "expectedValue": {
    "jira": "Low",
    "computed": -10
    }
}
]

Answer 1

这是一个常见错误。如您所见，][的第一次出现确实已被替换。

当您使用带有简单字符串的String.replace()方法作为第一个参数（要替换的字符串）时，通常会发生这种情况。

您需要做的是使用带有global标志的正则表达式。尝试将']['对象中的/]\[/g更改为options。

有关String.replace方法的更多详细信息：https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace

在节点JS

1 个答案: