javascript - What's a good way to build a character separated string from a collection? -

every once in while, need build character separated string while looping through collection. believe or not, there first or last separator character gets in way! :) usually, end chopping off character, line of code. leave that, out of curiosity, have cool "smooooth" way of doing this? (in c# and/or javascript)

example:

{"joe", "jane", "jim"} 

after building comma separated string, get:

"joe, jane, jim, " or ", joe, jane, jim"

looking cool way build

"joe, jane, jim" 

without string "chopping" after.

in javascript it's easy:

var input = ["joe", "jane", "jim"];  var str = input.join(','); // output: joe,jane,jim 

most languages have form of "join" either built-in or in library:

• javascript — it's a native function on array prototype
• php — implode
• java — apache commons lang
• c# — string.join

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by way, if writing such function, should use check not prepend "glue" on first pass, rather chopping string afterward:

var items = ["joe","jane","john"]; var glue = ","; var s = ""; (var i=0; < items.length; i++) {     if (i != 0) s += glue;     s += items[i]; }