How to compare sizes in jquery? 5 methods introduced

In jQuery, there are many ways to compare sizes. The following are some of the methods:

1. .val() gets the value of the element, and then uses parseFloat() or parseInt() to convert it into a number for comparison.

var num1 = parseFloat($('#input1').val());
var num2 = parseFloat($('#input2').val());
if(num1 > num2){
    //...
}

2. Use conditional operators for comparison.

var num1 = $('#input1').val();
var num2 = $('#input2').val();
num1 > num2 ? console.log(num1 + " > " + num2) : console.log(num1 + " < " + num2);

3. Use if/else statements for comparison.

var num1 = parseFloat($('#input1').val());
var num2 = parseFloat($('#input2').val());
if(num1 > num2){
    console.log(num1 + " > " + num2);
} else {
    console.log(num1 + " < " + num2);
}

4. Use the $.each() method in jQuery to compare the sizes of all elements in a collection.

var numArr = [];
$('input').each(function(index){
  numArr.push(parseFloat($(this).val()));
});
var max = Math.max.apply(null, numArr);
var min = Math.min.apply(null, numArr);
console.log("Max:" + max + " Min:" + min);

5. Use the $.map() method in jQuery to convert the elements in the collection into numbers and then compare them.

var numArr = $('input').map(function(index, elem){
  return parseFloat($(elem).val());
});
var max = Math.max.apply(null, numArr);
var min = Math.min.apply(null, numArr);
console.log("Max:" + max + " Min:" + min);

To sum up, there are many ways to compare sizes in jQuery, and developers can choose the method that suits them best according to the specific situation.

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