I need to add class "is_active" to all div's when I click on <div id="all-tags"> and remove class if I click again.

ONLY IF every div have class "is_active" then main div (<div id="all-tags">) have class "is_active".

In short check out my solution and you will understand what I need https://jsfiddle.net/vobbohxj/

Please tell me, is this ok or not.

JavaScript:

$("#all-tags").click(function() {
    if ($(this).hasClass("is_active")) {
        $(".tags_cloud div").each(function() {
            $(this).removeClass("is_active");
        });
    } else {
        $(this).addClass("is_active");
        $(".tags_cloud div").each(function() {
            $(this).addClass("is_active");
        });
    }
});

$(".tags_cloud div").click(function() {
    !$(this).is("#all-tags") ? $(this).toggleClass("is_active") : true;
    var c = 0;
    $(".tags_cloud div").each(function() {
        if ($(this).hasClass("is_active") && !$(this).is("#all-tags")) {
            // some my code
        } else if (!$(this).is("#all-tags")) {
            $("#all-tags").removeClass("is_active");
            c = 1;
        }
        c == 0 ? $("#all-tags").addClass("is_active") : true;
    })
});

I need as fast solution as possible, I'm not sure using .each() it's very good idea

I need to add class is_active to all div's when I click on <div id="all-tags"> and remove class if I click again. Only every div have class is_active then main div (<div id="all-tags">) have class is_active.

Please tell me if this is ok or not. I need as fast of a solution as possible. I'm also not sure using .each() is a very good idea.

I need as fast of a solution as possible. I'm not sure using if .each() is a very good idea.

$("#all-tags").click(function() {
    if ($(this).hasClass("is_active")) {
        $(".tags_cloud div").each(function() {
            $(this).removeClass("is_active");
        });
    } else {
        $(this).addClass("is_active");
        $(".tags_cloud div").each(function() {
            $(this).addClass("is_active");
        });
    }
});

$(".tags_cloud div").click(function() {
    !$(this).is("#all-tags") ? $(this).toggleClass("is_active") : true;
    var c = 0;
    $(".tags_cloud div").each(function() {
        if ($(this).hasClass("is_active") && !$(this).is("#all-tags")) {
            // some my code
        } else if (!$(this).is("#all-tags")) {
            $("#all-tags").removeClass("is_active");
            c = 1;
        }
        c == 0 ? $("#all-tags").addClass("is_active") : true;
    })
});