Answer & Solution
Answer: Option C
Solution:
$('ul li').addClass('active');
Q
How to add the class 'active' to all
<li> elements within a<ul> using jQuery?
Related Questions on Average
Which jQuery method is used to set the value of the title attribute to 'New Title' for all elements?
A). $('a').attr('title', 'New Title');
B). $('a').title('New Title');
C). $('a').setAttribute('title', 'New Title');
D). $('a').titleAttr('New Title');
Which jQuery method is used to change the background color of all paragraphs to yellow?
A). $('p').css('background-color', 'yellow');
B). $('p').style('background-color', 'yellow');
C). $('p').bgColor('yellow');
D). $('p').background('yellow');
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');
How to change the color of all paragraphs to red using jQuery?
A). $('p').style('color', 'red');
B). $('p').css('color', 'red');
C). $('p').color('red');
D). $('p').setColor('red');
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');
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). $('div').style('width', '300px');
Which jQuery method is used to change the HTML content of all <div> elements?
A). New paragraph$('div').innerHtml('
B). New paragraph$('div').html('
C). New paragraph$('div').innerHTML('
D). New paragraph$('div').setContent('
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)');
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');
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');