Chain programming and implicit iteration

Programming Chain

• In an exclusive ideology, for example, set the style for the current element, clear style of its siblings
• Chain programming is not used

$(this).css("color","red")
$(this).siblings().css("color","")

• The use of chain programming

$(this).css("color","red").siblings().css("color","")

Implicit iterative

• jQuery automatically traverses the DOM element dummy memory array, the respective method or styling
• Such as setting the style for li, li will change all

$("li").css("color","red")