Manipulating DOM elements by modifying attributes, styles, and content Mockest | JQuery

11.

How to add the class "active" to all<li> elements within a<ul> using jQuery?

A). $("ul li").setAttribute("class", "active"); B). $("ul li").add("active"); C). $("ul li").addClass("active"); D). $("ul li").setAttribute("class", "active");

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12.

Which jQuery method is used to change the height of all <div> elements to 200 pixels?

A). $("div").height("200px"); B). $("div").setHeight("200px"); C). $("div").css("height", "200px"); D). $("div").style("height", "200px");

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13.

How to remove the class "hidden" from all elements with the class "element" using jQuery?

A). $(".element").removeClass("hidden"); B). $(".element").remove("hidden"); C). $(".element").deleteClass("hidden"); D). $(".element").removeClassName("hidden");

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14.

Which jQuery method is used to change the opacity of all <div> elements to 0.5?

A). $("div").setOpacity(0.5); B). $("div").opacity(0.5); C). $("div").css("opacity", 0.5); D). $("div").opacity = 0.5;

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15.

How to set the value of the placeholder attribute to "Enter text" for all <input> elements using jQuery?

A). $("input").placeholder("Enter text"); B). $("input").setAttribute("placeholder", "Enter text"); C). $("input").attr("placeholder", "Enter text"); D). $("input").attr("placeholder", "Enter text");

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16.

Which jQuery method is used to change the width of all <div> elements to 300 pixels?

A). $("div").width("300px"); B). $("div").setWidth("300px"); C). $("div").css("width", "300px"); D). $("div").style("width", "300px");

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17.

How to change the font color of all <span> elements to blue using jQuery?

A). $("span").fontColor("blue"); B). $("span").color("blue"); C). $("span").css("color", "blue"); D). $("span").style("color", "blue");

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18.

Which jQuery method is used to change the background image of all <div> elements?

A). $("div").bgImage("url(image.jpg)"); B). $("div").css("background-image", "url(image.jpg)"); C). $("div").background("url(image.jpg)"); D). $("div").setImage("url(image.jpg)");

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19.

How to change the font family of all<p> elements to "Arial" using jQuery?

A). $("p").style("font-family", "Arial"); B). $("p").fontFamily("Arial"); C). $("p").css("font-family", "Arial"); D). $("p").font("Arial");

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20.

How to change the alt attribute of all <img> elements to "New Image" using jQuery?

A). $("img").alt("New Image"); B). $("img").setAttribute("alt", "New Image"); C). $("img").attr("alt", "New Image"); D). $("img").setAttr("alt", "New Image");

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