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In jquery, each means "loop through a set of elements"; the function of the each () method is to traverse a specified object and array, which is equivalent to a for loop in the program, and returning false can be used to stop the loop early. The syntax is "$.each (an object or array that needs to be traversed, a function used for loop execution)."

The operating environment of this tutorial: windows10 system, jquery3.2.1 version, Dell G3 computer.

What does each mean in jquery

Is to loop through a selected set of elements, which is equivalent to a for loop in a program

The jQuery.each () function is used to traverse the specified object and array.

Grammar

$.each (object, callback)

The object Object type specifies the object or array to traverse.

The function specified by the callback Function type for loop execution.

The each () method specifies the function to run for each matching element.

Tip: returning false can be used to stop the loop early.

Examples are as follows:

Traverse the array:

123div {color: blue;} div#five {color: red;} $(function () {var arr = ["one", "two", "three", "four", "five"]; var obj = {one: 1, two: 2, three: 3, four: 4, five: 5}; $.each (arr, function (I, val) {$("#" + val). Text ("mine is" + val + ".") / stop running return (val! = = "three");}) after "three"; $.each (obj, function (I, val) {$("#" + I) .append (document.createTextNode ("-" + val));});})

Output result:

Traverse the object:

(function () {var obj = {"flammable": "inflammable", "duh": "no duh"}; $.each (obj, function (key, value) {alert (key + ":" + value);});})

Output result:

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