Question

在下面的代码片段中，我尝试添加另一个函数，将每行与我知道会出现的行进行比较，这样如果找到它，就会返回一个我需要在屏幕上运行的查询

error: there were errors found during runtime 12.0
warning: incorrect info 1.0
warning: file at 'C://localhost/myfiles' not found 0.0
warning: file at 'C://localhost/css' not found 0.0
warning: file at 'C://localhost/js' not found 0.0
warning: file at 'C://localhost/assets' not found 5615612.0

这是我试图做的，但我不知道如何忽略数字，以便线条可以实际比较。 所有这些都发生在第一部分运行之后，我得到的数字大于0.0。

意味着对这些行进行比较：

错误：在运行时12.0期间发现错误警告：错误信息1.0
警告：找不到'C：// localhost / assets'的文件5615612.0

这些是我的条件：

if ("error: there were errors found during runtime 12.0" == line){
    //run this query for database runtimeDB
}
if("warning: incorrect info 1.0" == line){
    //this query
    //+1 for incorrectInfoDB
}
if("warning: file at 'C://localhost/myfiles' not found 0.0" == line){
    //this query
    //+1 for incorrectInfoDB
}
if("warning: file at 'C://localhost/css' not found 0.0" == line){
    //this query
    //+1 for outerfilesDB
}
if("warning: file at 'C://localhost/css' not found 0.0" == line){
    //this query
    //+1 for outerfilesDB
}
if("warning: file at 'C://localhost/js' not found 0.0" == line){
    //this query
    //+1 for outerfilesDB
}
if("warning: file at 'C://localhost/assets' not found 0.0" == line){
    //this query
    //+1 for outerfilesDB
}

我在想的是使用getLines（）函数，然后转到这个函数，它返回没有最后一个数字的字符串，以便进行比较。

function trim_numbers($string) {
    $numbers = strrchr($string, ' ');
    return str_replace($numbers, '', $string);
}

问题是我不知道如何推送数组以使它们都在同一个getLines（）函数中，而且我不必编写更多相同的代码。意思是这个功能

function getLines() {
  var text = $('textarea').val();
  var lines = text.split("\n");
  var requiredLines = [];
  var runtimeDB = [];
  var incorrectInfoDB = [];
  var outerfilesDB = [];
  lines.forEach(function(line) {
    number = line.match(/\d+\.\d+$/);
    if (number != null && number[0] > 0){
      requiredLines.push(line);
      if (trim_numbers(line) == "error: there were errors found during runtime"){
          //run this query for database runtimeDB
          //push this query to be outputed 
      }
      if("warning: incorrect info 1.0" == line){
          //this query for it database array 
          //push this query to be outputed 
      }
    }

  });
  return requiredLines;
}

为每个数据库组添加一个数组

runtimeDB
incorrectInfoDB
outerfilesDB

我不知道我是否正确解释了逻辑但是

首先它获得所有高于0.0的值
然后它将数组从高于0.0的值推送到数据库组

另外，有没有办法优化我的逻辑？

function getLines() {
  var text = $('textarea').val();
  var lines = text.split("\n");
  var requiredLines = [];
  lines.forEach(function(line) {
    number = line.match(/\d+\.\d+$/);
    if (number != null && number[0] > 0)
      requiredLines.push(line);
  });
  return requiredLines;
}


$(document).ready(
  function() {
    $('#printlogs').html(getLines().join('<br>'));
  });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<textarea style="width:100%;height:120px">
error: there were errors found during runtime 12.0
warning: incorrect info 1.0
warning: file at 'C://localhost/myfiles' not found 0.0
warning: file at 'C://localhost/css' not found 0.0
warning: file at 'C://localhost/js' not found 0.0
warning: file at 'C://localhost/assets' not found 5615612.0
</textarea>

<h4>Error Log</h4>
<printlogs id="printlogs" style="color:red"></printlogs>
<br>
<p>after these logs I want to get the arrays of each group that has their own database queries for the ones printed in printlogs</p>

<p>
  ex.
</p>
<h4>runtimeDB</h4>
<p>
  //run this query for this line
</p>
<h4>incorrectInfoDB</h4>
<p>
  //run this query for this line<br> //run this other query for other line ...
</p>

Answer 1

我会使用正则表达式并匹配特定关键字，以后可用于比较。

在这个特定的正则表达式中，我匹配具有关键字的所有内容，并以数字结尾，并且该数字不是“0.0”（这是正则表达式的(?!0\.0)部分。）

正则表达式在循环中执行，因为它每次迭代匹配一行。

function getLines(text) {
  var lines = [];
  var re = /.*?(runtime|info|myfiles|css|assets|js).*?(?!0\.0)\d+\.?\d+/g;
  while (m = re.exec(text)) {
    lines.push(m[1]);
  };

  return lines;
}

$(function() {
    $('#printlogs').html(getLines($('textarea').val()).join('<br>'));
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<textarea style="width:100%;height:120px">
error: there were errors found during runtime 12.0
warning: incorrect info 1.0
warning: file at 'C://localhost/myfiles' not found 0.0
warning: file at 'C://localhost/css' not found 0.0
warning: file at 'C://localhost/js' not found 0.0
warning: file at 'C://localhost/assets' not found 5615612.0
</textarea>

<h4>Error Log</h4>
<div id="printlogs" style="color:red"></div>

稍后在您的代码中

getLines().forEach(function(line) {
    if (line === 'info') {
        // do your logic
    }
    if (line === 'js'||line ==='css'||line==='assets') {
        // do your logic
    }
});

Answer 2

var thestr = "warning: file at 'C://localhost/assets' not found 5615612.0";
var voila = thestr.substr(thestr.indexOf("found") + 5);   //+ 6 to remove the leading space
console.log(thestr);
console.log(thestr.indexOf("found"));
console.log(voila);

以下是将字符串拆分为＆＃34;找到＆＃34;，但它闻起来有点气味。

我会编写错误并将代码添加到日志行中一个可识别的位置 - 当然，如果您是选择日志中的内容的人。即。

0001::warning: whatever text

然后你可以解析每一行的第一个字符，或者在＆＃34; ::＆＃34;上拆分该行，并且知道你遇到了一个＆＃34; 0001＆＃34;错误。并在行尾使用类似的易于解析的方法。

如何在Javascript中推送多个数组并从函数返回它们？

2 个答案: