blocks|key|1105923|text|这应该能行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1105924|let+sentence+=+"Love+is+the+best+thing+in+this+world.+
Some+found+their+love+and+some+are+still+looking+for+their+love."

console.log(sentence.split("love").length)|code-block|syntax|javascript|1105925|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>This should work.</p>
<pre><code>let sentence = &quot;Love is the best thing in this world. 
Some found their love and some are still looking for their love.&quot;

console.log(sentence.split(&quot;love&quot;).length)
</code></pre>


blocks|key|1105931|text|这应该能行|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1105932|const+sentence+=+'Love+is+the+best+thing+in+this+world.+Some+found+their+love+and+some+are+still+looking+for+their+love.'
const+occurrences+=+sentence.match(/love/gi);+//+(g+is+is+for+match+all+occurrences,+i+is+for+case+insensitive)
console.log("number+of+occurrences+of+'love'",+occurrences.length)|code-block|syntax|javascript|1105933|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>This should work</p>
<pre class="lang-js prettyprint-override"><code>const sentence = 'Love is the best thing in this world. Some found their love and some are still looking for their love.'
const occurrences = sentence.match(/love/gi); // (g is is for match all occurrences, i is for case insensitive)
console.log(&quot;number of occurrences of 'love'&quot;, occurrences.length)
</code></pre>


blocks|key|558309|text|为了使它更加通用，并显示使用了reduce：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|558310|​|558311|const+data+=+"Love+is+the+best+thing+in+this+world.+Some+found+their+love+and+some+are+still+looking+for+their+love"

const+dataArray+=+data.split('+');

const+wordMap+=+dataArray.reduce((result,+word)+=>+{
++++result[word.toLowerCase()+]=+result[word.toLowerCase()+]+?+result[word]+%2B+1+:+1;
++++return+result
},+{});

console.log(wordMap["love"])
console.log(wordMap["is"])
console.log(wordMap["best"])|code-block|syntax|javascript|558312|558313|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|K|$]]

<p>To make it a little more generic and to show of the use of reduce:</p>
<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>const data = "Love is the best thing in this world. Some found their love and some are still looking for their love"

const dataArray = data.split(' ');

const wordMap = dataArray.reduce((result, word) =&gt; {
    result[word.toLowerCase() ]= result[word.toLowerCase() ] ? result[word] + 1 : 1;
    return result
}, {});

console.log(wordMap["love"])
console.log(wordMap["is"])
console.log(wordMap["best"])</code></pre>
</div>
</div>
</p>


blocks|key|1105979|text|您可以使用regex，也可以实现通用regex规则。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1105980|​|1105981|const+count+=+(str)+=>+{
++const+re+=+/love/gmi
++return+((str).match(re)+%7C%7C+[]).length
}

console.log(count('Love+is+the+best+thing+in+this+world.+Some+found+their+love+and+some+are+still+looking+for+their+love'))|code-block|syntax|javascript|1105982|1105983|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|K|$]]

<p>you can use regex, also you can implement generic regex rules too.</p>
<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>const count = (str) =&gt; {
  const re = /love/gmi
  return ((str).match(re) || []).length
}

console.log(count('Love is the best thing in this world. Some found their love and some are still looking for their love'))</code></pre>
</div>
</div>
</p>


blocks|key|1121797|text|我在eclipse中用Java创建了一个解决方案。我不是那种编程天才，但已经有三年的经验了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1121798|公共类问题{|1121799|public+static+void+main(String[]+args)+{
++++//+TODO+Auto-generated+method+stub
+++++String+s+=+"Love+is+the+best+thing+in+this+world.+Some+found+their+love+and+some+are+still+looking+for+their+love.";+
+++++String+split[]=s.split("+");+//splits+every+char+sequence+to+an+array+by+space+->+"+"
++++
+++++int+i=0;+//counting+variable+to+run+through+the+foor+loop
+++++int+count+=+0;++//counting+the+matching+char+sequences

+++++for(i=0;+i<split.length;+i%2B%2B)+{+//running+the+for+loop+from+o+until+the+end+of+the+array+length+with+the+splitted+strings
+++++++++System.out.println(split[i]);+//helping+output+to+see+whats+been+splitted
+++++++++if(split[i].contains("Love")%7C%7C+split[i].contains("love"))+{+//+checking+every+array+space+if+it+contains+the+word+Love+or+love+(case+sensitiv)
+++++++++++++count%2B%2B;+//if+it+matches+count+up+by+one
+++++++++}
+++++}
+++++System.out.println(count);
}|code-block|syntax|javascript|1121800|}|1121801|增加的评论应解释我在这项任务中所做的工作。只需在控制台中查找应该清除所有内容的输出。|1121802|这些单词是分裂体字符串的内容。最后的输出(3)是被计数的爱的数量。|offset|length|1121803|雅尼克|1121804|entityMap|0|LINK|mutability|MUTABLE|url|https://i.stack.imgur.com/606nP.png^0|0|0|0|0|0|0|X|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|13|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|15|8|@]|9|@$O|16|P|17|1|18]]|A|$]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

<p>i have created a solution in Java in eclipse. I am not that programming genius but have a little experience for three years now.</p>
<p>public class Question {</p>
<pre><code>public static void main(String[] args) {
    // TODO Auto-generated method stub
     String s = &quot;Love is the best thing in this world. Some found their love and some are still looking for their love.&quot;; 
     String split[]=s.split(&quot; &quot;); //splits every char sequence to an array by space -&gt; &quot; &quot;
    
     int i=0; //counting variable to run through the foor loop
     int count = 0;  //counting the matching char sequences

     for(i=0; i&lt;split.length; i++) { //running the for loop from o until the end of the array length with the splitted strings
         System.out.println(split[i]); //helping output to see whats been splitted
         if(split[i].contains(&quot;Love&quot;)|| split[i].contains(&quot;love&quot;)) { // checking every array space if it contains the word Love or love (case sensitiv)
             count++; //if it matches count up by one
         }
     }
     System.out.println(count);
}
</code></pre>
<p>}</p>
<p>the added comments should explain what i have done in the task. Just look for the output in the console that should clear things up.</p>
<p><a href="https://i.stack.imgur.com/606nP.png" rel="nofollow noreferrer">The words are the content of the splittet string. The last output (3) is the counted amount of love</a></p>
<p>Regards Yannik</p>


<p>i'm new to javascript langguage and still learning some of the data types and i get execise which i can not comprehend, please help me.</p>
<p>The exercise question :</p>
<blockquote>
<p>'Love is the best thing in this world. Some found their love and some are still looking for their love.' Count the number of word <strong>love</strong> in this sentence.</p>
</blockquote>
<p>so i tried some of the basic method such as,</p>
<ol>
<li>match</li>
<li>search</li>
<li>split</li>
</ol>
<p>and i cannot count the words love and given love words index.</p>
<p>how can i code this to find the answers?</p>


How can i count a specific words in a certain string?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我对javascript很陌生，还在学习一些数据类型，我得到了一些我无法理解的内容，请帮助我。练习问题：“爱是这个世界上最好的东西。有些人找到了他们的爱，有些人仍然在寻找他们的爱。”数一数这个句子中这个词的个数。所以我尝试了一些基本的方法，比如，匹配搜索拆分我数不清爱和给予爱的词的索引。我如何编码这个以找到答案？

问如何计算特定字符串中的特定单词？
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问如何计算特定字符串中的特定单词？
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