Question

我想在一个字符串中找到多个子字符串，如果找到所有这三个字符串，那么就这样做，如果没有，则执行其他操作。

我有点坚持如何设置它，以便如果我得到三个＆＃34; True＆＃34;，我想执行某些事情，其他我希望它做其他事情。

非常感谢。

我的代码如下。

//Main String
var string0 = ' ": {"MATHEMATICS": {"status": "start", "can_start": false}, "READING": {"status": "start", "can_start": false}, "WRITING": {"status": "start", "can_start": false" ';

//Substrings
var substringArray = ['"MATHEMATICS": {"status": "start"', '"READING": {"status": "start"', '"WRITING": {"status": "start"'];

//Check if Substrings are found in MainString
for (l = 0; l < substringArray.length; l++) {
  if (string0.indexOf(substringArray[l]) > -1) {
    logger.info("True");
  } else {
    logger.info("False");
  }
}

Answer 1

您可以尝试使用Array.every方法检查所有子字符串。

代码示例：

var isContainsAllTheParts = substringArray.every(function(substring){
    return string0.indexOf(substring) >= 0;
});

Answer 2

只需使用变量来计算＆＃34; true＆＃34;

的数量

＆＃13;

  //Main String
  var string0 = ' ": {"MATHEMATICS": {"status": "start", "can_start": false}, "READING": {"status": "start", "can_start": false}, "WRITING": {"status": "start", "can_start": false" ';

  //Substrings
  var substringArray = ['"MATHEMATICS": {"status": "start"', '"READING": {"status": "start"', '"WRITING": {"status": "start"'];

  var matchCount = 0;

  //Check if Substrings are found in MainString
  for (l = 0; l < substringArray.length; l++) {
    if (string0.indexOf(substringArray[l]) > -1) {
     logger.info("True");
     matchCount++;
    } else {
      logger.info("False");
    }
  }

  if(matchCount == 3){
      //do something
      logger.info('I did');
  } else {
      // do some other thing
      logger.info('I did not');
  }

＆＃13;

Answer 3

我想出了办法。

＆＃13;

var magicNumber = 0;

//Check if Substrings are found in string0
for (l = 0; l < substringArray.length; l++) {
  //logger.info(substringArray[l]);
  if (string0.indexOf(substringArray[l]) > -1) {
    logger.info("True");
    magicNumber++;
  } else {
    logger.info("False");
  }
}

while (magicNumber < 3) {
  //execute this
}

＆＃13;

Answer 4

不确定为什么不接受Telman Ahababov的回答。如果还不清楚的话，我会解释。我也将其缩短一些，并使用更简单的include（）方法：

let str = "Here is the string in which we want to find multiple substrings."

let subStrArr = ["Here is", "which we", "multiple"]

let containsAllSubStrs = subStrArr.every(subStr => {
        return str.includes(subStr);
    });

if (containsAllSubStrs) {
        //containsAllSubStrs equals 'true', meaning all substrings were found.
} else {
        //containsAllSubStrs equals 'false', meaning NOT all substrings were found.
    }

Javascript - 如何检查字符串是否包含多个子字符串

4 个答案: