Java脚本：如何根据条件替换多个字符串

字符串下面的格式为名称和值（'name' - 'value';）。如何删除值'0 bytes'及其名称的出现以及删除名称'/platform/sun4v/lib/sparcv9/libc_psr.so.1'及其值。Java脚本：如何根据条件替换多个字符串

/devices - 0 bytes;/system/object - 0个字节;/etc/dfs/sharetab - 0 bytes;/dev/fd - 0字节;/var/run - 13.77 GiB; /platform/sun4v/lib/sparcv9/libc_psr.so.1-27.24 GiB;/- 27.24 GiB; /var - 26.84 GiB;/proc - 0字节;/system/contract - 0字节;/rpool - 18.04 GiB;/mnt - 157.67 TiB;/vol - 0字节;/was8 - 48.26 GiB; /platform/sun4v/lib/libc_psr.so.1-27.24 GiB;/etc/svc/volatile - 13.77 GiB;/etc/mnttab - 0字节;/tmp - 13.82 GiB;

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2016-11-16 Jakk

分割上selicolon字符串和滤镜阵列根据您的标准，然后再加入阵列重新添加分号和转换回一个字符串：

var str = '/devices - 0 bytes; /system/object - 0 bytes; /etc/dfs/sharetab - 0 bytes; /dev/fd - 0 bytes; /var/run - 13.77 GiB; /platform/sun4v/lib/sparcv9/libc_psr.so.1 - 27.24 GiB;/- 27.24 GiB; /var - 26.84 GiB; /proc - 0 bytes; /system/contract - 0 bytes; /rpool - 18.04 GiB; /mnt - 157.67 TiB; /vol - 0 bytes; /was8 - 48.26 GiB; /platform/sun4v/lib/libc_psr.so.1 - 27.24 GiB; /etc/svc/volatile - 13.77 GiB; /etc/mnttab - 0 bytes; /tmp - 13.82 GiB;' 

var splitStr = str.split(';'); 
var newStr = splitStr.filter(function(item){ 
     var itemSplit = item.split('-'); 

     return !(itemSplit != '' && (itemSplit[0].trim() === '/platform/sun4v/lib/sparcv9/libc_psr.so.1' || itemSplit[1].trim() ==='0 bytes')); 
}).join(';'); 

//newStr is will contain the filtered string 
console.log(newStr);

来源

2016-11-16 11:49:11

你可以在这里使用正则表达式来转换字符串。

参见：

第一正则表达式（/\/platform\/sun4v\/lib\/sparcv9\/libc_psr\.so\.1 [^\;]+\;\s/）选择长，唯一子;
第二正则表达式（/\/[^\-]+- 0 bytes\;\s/g）选择（和每个实例的前面的标签）的- 0 bytes所有实例

var paragraphAfter = document.getElementsByClassName('after')[0]; 
 
var textBefore = document.getElementsByClassName('before')[0].textContent; 
 
var textAfter = textBefore.replace(/\/platform\/sun4v\/lib\/sparcv9\/libc_psr\.so\.1 [^\;]+\;\s/,''); 
 
var textAfter = textAfter.replace(/\/[^\-]+- 0 bytes\;\s/g,''); 
 
paragraphAfter.textContent = textAfter;

<h2>Before:</h2> 
 
<p class="before">/devices - 0 bytes; /system/object - 0 bytes; /etc/dfs/sharetab - 0 bytes; /dev/fd - 0 bytes; /var/run - 13.77 GiB; /platform/sun4v/lib/sparcv9/libc_psr.so.1 - 27.24 GiB; /var - 26.84 GiB; /proc - 0 bytes; /system/contract - 0 bytes; /rpool - 18.04 GiB; /mnt - 157.67 TiB; /vol - 0 bytes; /was8 - 48.26 GiB; /platform/sun4v/lib/libc_psr.so.1 - 27.24 GiB; /etc/svc/volatile - 13.77 GiB; /etc/mnttab - 0 bytes; /tmp - 13.82 GiB;</p> 
 

 
<h2>After:</h2> 
 
<p class="after"></p>

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2016-11-16 11:53:38 Rounin

尝试此。

str.split(';').filter(item => !item.includes('0 bytes') && !item.includes('/platform/sun4v/lib/sparcv9/libc_psr.so.1')).join(';')

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2016-11-16 11:58:34 Lewis

我相信你仍然希望你的输出格式相同。这应该为你工作：

function formatInfo(data) { 
    return data.split(";").filter(function(item,i) { 
     if(item.indexOf('0 bytes') >= 0 || item.indexOf('/platform/sun4v/lib/sparcv9/libc_psr.so.1') >= 0) { 
      return null; 
     } 
     return item.trim(); 
    }).join(";").trim(); 
}

//用法：

formatInfo('/devices - 0 bytes; /system/object - 0 bytes; /etc/dfs/sharetab - 0 bytes; /dev/fd - 0 bytes; /var/run - 13.77 GiB; /platform/sun4v/lib/sparcv9/libc_psr.so.1 - 27.24 GiB;/- 27.24 GiB; /var - 26.84 GiB; /proc - 0 bytes; /system/contract - 0 bytes; /rpool - 18.04 GiB; /mnt - 157.67 TiB; /vol - 0 bytes; /was8 - 48.26 GiB; /platform/sun4v/lib/libc_psr.so.1 - 27.24 GiB; /etc/svc/volatile - 13.77 GiB; /etc/mnttab - 0 bytes; /tmp - 13.82 GiB;');

//应该返回：

"/var/run - 13.77 GiB;/- 27.24 GiB; /var - 26.84 GiB; /rpool - 18.04 GiB; /mnt - 157.67 TiB; /was8 - 48.26 GiB; /platform/sun4v/lib/libc_psr.so.1 - 27.24 GiB; /etc/svc/volatile - 13.77 GiB; /tmp - 13.82 GiB"

干杯.. !!

来源

2016-11-16 13:09:20 Popsyjunior

Java脚本：如何根据条件替换多个字符串

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