How to compare strings for equality in jquery

There are many ways to compare whether strings are equal in jQuery. The following are some of the commonly used methods:

1. Use JavaScript's own comparison operator "===" or "= =".

var str1 = "hello";
var str2 = "world";
if(str1 === str2){
  console.log("字符串相等");
}else{
  console.log("字符串不相等");
}

2. Use the $.trim() method provided by jQuery to remove spaces at both ends of the string, and then use "===" or "==" for comparison.

var str1 = "  hello  ";
var str2 = "world";
if($.trim(str1) === str2){
  console.log("字符串相等");
}else{
  console.log("字符串不相等");
}

3. Use the $.fn.text() method provided by jQuery to get the text content of the element, and then use "===" or "==" to compare.

var str1 = $("div#div1").text();
var str2 = "world";
if(str1 === str2){
  console.log("字符串相等");
}else{
  console.log("字符串不相等");
}

4. Use the $.fn.val() method provided by jQuery to get the value of the form element, and then use "===" or "==" to compare.

var str1 = $("input#input1").val();
var str2 = "world";
if(str1 === str2){
  console.log("字符串相等");
}else{
  console.log("字符串不相等");
}

In short, there are many ways to compare whether strings are equal in jQuery. You need to choose the appropriate method according to the usage scenario and needs.

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