如何通过使用javascript或jquery将字符串添加到数组中的每个字符串中？

Question

I want to add "*." at opening and ";" at ending on each array element. Below is the sample code.

var ext = getExt(filename);
var s = '<%=AllowedExtensions %>';
var match = s.split(', ');

In the above code in 'match' I use to get ["jpg", "png", "txt"] like this. So here on each array element I want to prefix with " ." and at end of each want to add ";" and also it should give me a string such as " .jpg; .png; .txt;" .

Answer 1

ES5 code:

match = match.map(function( word ) {
    return '*.' + word + ';';
}).join('');

ES3 code:

for(var i = 0, len = match.length; i < len; i++) {
    match[ i ] = '*.' + match[ i ] + ';';
}

match = match.join('');

Demo: http://jsfiddle.net/PNDr6/1/

Answer 2

尝试这个：

var matchString = '.' + match.join(';.') + ';'

Answer 3

You can do something like this:

for(var k = 0; k < match.length; k++)
{
    match[k] = '*.' + match[k];
}
var allExten = match.join(';');