concat « String « Javascript Data Type Q&A

1. Is String.concat slower than Array approach to join strings    stackoverflow.com

Strings in JavaScript are immutable. Across the web and here on Stack Overflow as well, I came across the Array approach to concatenate strings:

var a = []; 

a.push(arg1,arg,2....);
console.log(a.join(''));

2. Javascript: concat to string at beginning?    stackoverflow.com

What is the shortest method, to add a new value ("John") at the beginning of a string ?

var mystr = "Doe";
    mystr.specialConcat("John ")  // ??

console.log(mystr)  // ...

3. How String.concat() implements in javascript?    stackoverflow.com

In function .concat(), I can pass an arbitrary number of arguments to it. I understand function overloading in C++, but I don't know how implement a function with unknown number of arguments ...

4. Cannot concat a XSL variable with a javascript String?    stackoverflow.com

So I'm trying to pass a XSL variable to a js function and then concat it with a string, but it does not work. This is what I tried:

<msxsl:script language="JavaScript" implements-prefix="js"> 
<![CDATA[
 ...

5. Javascript - concat string does not work as expected    stackoverflow.com

What's the wrong with this Javascript line?

user: h.reem
domain: somedomain

var target = "//account/win/winlogin.aspx" + 
             "?username=" + 
   ...

6. Concat strings for right to left locales in javascript    stackoverflow.com

It seems + is not the right operator to handle the concatenation of strings in JavaScript. what are some alternatives to handle the both the ltr and rtl cases?

7. concat string to access variable - IDEAS?    forums.devshed.com

good day folks ok i have a string, lets say: var temp = "test"; I also have an input box on the page called "test", and I was to make javascript such that I can access the input box using the temp string. So, I wanted something like this: You ...

8. concat some arrays together - from a string    sitepoint.com

Hi I have a string - comma seperated - of array names. e.g. var stringname = "array_one, array_two, array_three, array_four"; And I want to merge all the arrays named in the string into one big array. (The string is produced via PHP as the exact arrays to merge may vary). I've tried var comboarray = comboarray.concat(eval(stringname)); But the eval()sn't working as ...