CODEWITHSUNDEEP
phpjavascriptstring
tom91136
tom91136

Reputation: 8962

javascript equivalent of PHP string append

in php, i do this to connect strings

(pseudo code)

$myString = "";
for($i = 0;$i < 10;$i++)
    $myString .= $i;
echo $myString;

would give me 0123456789

you got the idea ,now, how can i do the same in javascript?

Upvotes: 0

Views: 614

Answers (4)

SDC
SDC

Reputation: 14222

Javascript uses the plus sign for string concatenation. So:

mystring = 'this' + 'that';   //gives string value "thisthat"

It is important to note that Javascript also uses the plus sign for numeric addition. This means that you can get into trouble with variable types.

var myInt = 5;
var myString = "5";

alert(myInt + 5);     //gives the string value "55".
alert(myString + 5);  //gives the integer value 10.

This means that your PHP trick of adding numbers together to make string, as per your question, will only work if you start with a string variable. PHP can recognise for itself that you intend it to be a string operation because of the concat operator; Javascript doesn't have that ability, so you have to tell it explicity by making sure that your variables are of the correct type.

Upvotes: 2

Gerald Versluis
Gerald Versluis

Reputation: 33993

You should use the += operator.

So in pseudo code your code should be something like

myString = "";
for(i = 0;i < 10;i++)
    myString += i;
alert(myString);

Upvotes: 3

Ashwin Singh
Ashwin Singh

Reputation: 7345

Here it will do it. 

var $myString = "";
    for(var $i = 0;$i < 10;$i++){
        $myString += $i;//+=  the equivalent of .= in JS
}
    alert( $myString );

Upvotes: 1

Miqdad Ali
Miqdad Ali

Reputation: 6147

var myString = "";
for(var i = 0;i < 10;i++)
    myString += i;
alert(myString);

Upvotes: 3

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