Replace first character of string

后端 未结 7 865
走了就别回头了
走了就别回头了 2020-12-05 23:01

I have a string |0|0|0|0

but it needs to be 0|0|0|0

How do I replace the first character (\'|\') with (\'\'

7条回答
  •  庸人自扰
    2020-12-05 23:41

    You can do exactly what you have :)

    var string = "|0|0|0|0";
    var newString = string.replace('|','');
    alert(newString); // 0|0|0|0
    

    You can see it working here, .replace() in javascript only replaces the first occurrence by default (without /g), so this works to your advantage :)

    If you need to check if the first character is a pipe:

    var string = "|0|0|0|0";
    var newString = string.indexOf('|') == 0 ? string.substring(1) : string;
    alert(newString); // 0|0|0|0​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​
    

    You can see the result here

提交回复
热议问题