Question

我想删除文件中不必要的逗号，代码如下：

const data: any = utils.sheet_to_csv(ws);
let blob = new Blob(['\ufeff' + data], { type: 'text;charset=utf-8;' });
let dwldLink = document.createElement("a");
let url = URL.createObjectURL(blob);

我从第一行得到低于输出：

,,,,,       ,NTD00539,100000,01,Varsha,20180607

如何删除前5个逗号？

Answer 1

您可以删除不必要的'，'，如下所示：

    while (data.match(/^,/) != null) {    
      data = data.replace(/^,/, ""); //replace  comma from firstplace    
    }

    while (data.match(/,\s*$/) != null) {    
       data = data.replace(/,\s*$/, ""); //replace  comma from lastplace    
    }

    while (data.match(/,,/g) != undefined) {    
      data = data.replace(/,,/g, ','); console.log('count')//replace  consecutive occurrence of comma 
    }

使用angular 2删除text / csv文件中不必要的逗号

1 个答案: