如何将字符串拆分为在数组中声明的新行？ Javascript / jQuery

Question

I wanted to break the one string in the set of array elements. The output will be display with a time interval. Javascript:

    <script type="text/javascript"> 
    var caption= document.getElementById('caption');
    var text=['Hey there please help me','solve the problem sleep BETTER.'];
                    function display(i){
                    if(i >= text.length){
                       i = 0;
                       }
                    caption.innerHTML = text[i];
                    setTimeout(function(){
                      display(i + 1)
                     }, 6000)

                   }
                   display(0)
     </script>

The output is: solve the problem sleep BETTER. But I need something like this: solve the problem (In new line) sleep BETTER.

Html:

<div class= "content" >
h1><span id="caption"> </span></h1> 
</div>

I need to display the caption with a new line.

Thank you!

Answer 1

Instead of simply overwriting the text content with caption.innerHTML = text[i] , you'll want to append to the content with += . To output solve the problem and sleep BETTER onto new lines, you'll first want to separate and them out in the array, and then add an HTML line break ( <br /> ) before outputting the new text:

 var caption = document.getElementById('caption'); var text = ['Hey there please help me', 'solve the problem', 'sleep BETTER.']; function display(i) { if (i >= text.length) { i = 0; } caption.innerHTML += "<br />" + text[i]; setTimeout(function() { display(i + 1) }, 6000) } display(0) 

 <div class="content"> <h1><span id="caption"> </span></h1> </div> 

If you don't want the to repeat, simply set the functionality inside of an if statement that checks if (i < text.length) :

 var caption = document.getElementById('caption'); var text = ['Hey there please help me', 'solve the problem', 'sleep BETTER.']; function display(i) { if (i < text.length) { caption.innerHTML += "<br />" + text[i]; setTimeout(function() { display(i + 1) }, 6000) } } display(0) 

 <div class="content"> <h1><span id="caption"> </span></h1> </div>