Using split/join to replace a string with an array

Question

I'm trying to replace the value of item with values in the array arr, but I only get that if I use: arr [1], arr [2] ... if I just let arr, returns abcdefg.

I am PHP programmer, and I have a minimal notion with JavaScript, can someone give me a light?

var item = 'abcdefg';
var arr = new Array();
arr[1] = "zzz";
arr[2] = "abc";
var test = item.split(arr);
alert(test.join("\n"));

Please give an example of what item should contain when this has completed. Should item look like zzzabc or zzzdefg or something else entirely? — WesleyJohnson
– WesleyJohnson, Commented Jun 22, 2011 at 15:29
HMM return the string item '1' to -> 'zzz', or item '2' to -> 'xxx'... — Gustavo Porto
– Gustavo Porto, Commented Jun 22, 2011 at 15:48

Peter Mortensen · Accepted Answer · 2019-07-06 16:04:04Z

8

Use:

var item = 'Hello, 1, my name is 2.';
var arr = new Array();
arr [1] = 'admin';
arr [2] = 'guest';
for (var x in arr)
    item = item.replace(x, arr[x]);
alert(item);

It produces:

Hello, admin, my name is guest.

edited Jul 6, 2019 at 16:04

Peter Mortensen

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answered Jun 22, 2011 at 15:33

agent-j

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7 Comments

Gustavo Porto Over a year ago

What I'm trying to do is replace the IDs with names, example: id 1 - admin id 2 - guest id 3 - test1 id 4 - test2 These values, I would have in an array (arr [1] = admin, arr [2] = guest, etc.), the string value item, would be the id, so I searched the id in the array array and replace the name .

agent-j Over a year ago

you may need to do foreach item in array, do replacement.

Gustavo Porto Over a year ago

can you help me with this? :(

agent-j Over a year ago

@GtOkAi, I added some code. Is that what you're looking for?

Gustavo Porto Over a year ago

Yes! Exactly! It would only be to the contrary, changing the admin change by 1 and 2 per guest

|

Justin Thomas · Accepted Answer · 2011-06-22 15:28:33Z

2

Split uses regular expressions, so

"My String".split('S') == ["My ","tring"]

If you are trying to replace a string:

"abcdef".replace('abc','zzz') == "zzzdef"

answered Jun 22, 2011 at 15:28

Justin Thomas

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2 Comments

wizzwizz4 Over a year ago

It uses regular expressions, i.e. /[a-z]+/ or strings, i.e. "/[a-z]+/". The former splits on any block of lower-case letters, the latter on the literal string /[a-z]+/.

Peter Mortensen Over a year ago

split was deprecated in PHP 5.3 and removed in PHP 7.0. Perhaps time for an update?

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