How do I compare two variables containing strings in JavaScript?

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I want compare two variables, that are strings, but I am getting an error.

<script>
    var to_check=$(this).val();
    var cur_string=$("#0").text();
    var to_chk = "that";
    var cur_str= "that";

    if(to_chk==cur_str){
        alert("both are equal");
        $("#0").attr("class","correct");    
    } else {
        alert("both are not equal");
        $("#0").attr("class","incorrect");
    }
</script>

Is something wrong with my if statement?


=== is not necessary. You know both values are strings so you dont need to compare types.

function do_check()
{
  var str1 = $("#textbox1").val();
  var str2 = $("#textbox2").val();

  if (str1 == str2)
  {
    $(":text").removeClass("incorrect");
    alert("equal");
  }
  else
  {
    $(":text").addClass("incorrect");
    alert("not equal");
  }
}
.incorrect
{
  background: #ff8888;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<input id="textbox1" type="text">
<input id="textbox2" type="text">

<button onclick="do_check()">check</button>

How to compare two variables containing strings in JavaScript, If two strings are str1 and str2. You can use str1.localeCompare(str2) Using if String comparison can be done in javascript. Say, str1 = “abc”; str2 = “xyz”; str1� var n = str1.localeCompare (str2); The localeCompare () method compares two strings in the current locale. The locale is based on the language settings of the browser. The localeCompare () method returns a number indicating whether the string comes before, after or is equal as the compareString in sort order. The localeCompare method returns a number indicating whether str1 comes before, after or is the same as str2 in sort order.


instead of using the == sign, more safer use the === sign when compare, the code that you post is work well

JavaScript Comparison and Logical Operators, The algorithm to compare two strings is simple: Be careful when using comparisons like > or < with variables that can occasionally be� To compare two strings in JavaScript, use the localeCompare () method. The method returns 0 if both the strings are equal, -1 if string 1 is sorted before string 2 and 1 if string 2 is sorted before string 1.


I used below function to compare two strings and It is working good.

function CompareUserId (first, second)
{

   var regex = new RegExp('^' + first+ '$', 'i');
   if (regex.test(second)) 
   {
        return true;
   }
   else 
   {
        return false;
   }
   return false;
}

Comparisons, To compare two strings in JavaScript, use the localeCompare() method. The method returns 0 if both the strings are equal, -1 if string 1 is sorted before string . How to compare two strings in the current locale with JavaScript? compareStr() { var string1 = "World"; var string2 = "World"; var result = string1. By using our site, you acknowledge that you have read and understand our Cookie Policy, I used below function to compare two strings and It is working good.


You can use javascript dedicate string compare method string1.localeCompare(string2). it will five you -1 if the string not equals, 0 for strings equal and 1 if string1 is sorted after string2.

<script>
    var to_check=$(this).val();
    var cur_string=$("#0").text();
    var to_chk = "that";
    var cur_str= "that";
    if(to_chk.localeCompare(cur_str) == 0){
        alert("both are equal");
        $("#0").attr("class","correct");    
    } else {
        alert("both are not equal");
        $("#0").attr("class","incorrect");
    }
</script>

What is the best way to compare two strings in JavaScript?, The question is to compare 2 JavaScript strings optimally. String localeCompare() method: This method compares two strings in the current locale. It specifies the string to be compared with. var el_down = document. The algorithm to compare two strings is simple: Compare the first character of both strings. If the first character from the first string is greater (or less) than the other string’s, then the first string is greater (or less) than the second. We’re done.


Optimum way to compare strings in JavaScript, I have problem in checking if the two values of variables is match or like. The reason is that if you try to subtract two strings in JS, the if lot_number contains the string “LO130227003”; if lot_number contains the string� The localeCompare () method compares two strings in the current locale. The locale is based on the language settings of the browser. The localeCompare () method returns a number indicating whether the string comes before, after or is equal as the compareString in sort order.


Comparison of two variables using match - JavaScript, Comparing strings in JavaScript is quite easy, as long as you know about the equals operator and This is all you need to know to find out if two strings of your choosing are equal. <script type="text/javascript"> var username = " Agent006"; if(username Now as case insensitive document.write("<br /><br /> Let's try it with� JavaScript variables can hold numbers like 100 and text values like "John Doe". In programming, text values are called text strings. JavaScript can handle many types of data, but for now, just think of numbers and strings.


Javascript Tutorial - Compare, This is a seemingly simple programming task that we deal with everyday. Here's the situation: 1) You have a string in JavaScript, like var fruit� The main difference lies in which scripting language you are using. If you are using Bash then include #!/bin/bash in the starting of the script and save your script as filename.bash. To execute, use bash filename.bash - then you have to use ==. If you are using sh then use #!/bin/sh and save your script as filename.sh.