Javascript - explode equivilent?

Question

So, I have a string with the delimiter | , one of the sections contains "123", is there a way to find this section and print the contents? something like PHP explode (but Javascript) and then a loop to find '123' maybe? :/

possible duplicate of [Javascript Equivalent to Explode](http://stackoverflow.com/questions/4514323/javascript-equivalent-to-explode) — Michael Berkowski, Feb 18 '12 at 03:29
Possible duplicate of [Javascript Equivalent to PHP Explode()](https://stackoverflow.com/questions/4514323/javascript-equivalent-to-php-explode) — James K., Aug 16 '17 at 18:25

Alex · Accepted Answer · 2020-09-30T18:17:08.897

18

const string = "123|34|23|2342|234";
const arr = string.split('|');

for(let i in arr){
    if(arr[i] == 123) alert(arr[i]);
}

Or:

for(let i in arr){
    if(arr[i].indexOf('123') > -1) alert(arr[i]);
}

Or:

arr.forEach((el, i, arr) => if(arr[i].indexOf('123') > -1) alert(arr[i]) }

Or:

arr.forEach((el, i, arr) => if(el == '123') alert(arr[i]) }

Or:

const arr = "123|34|23|2342|234".split('|')

if(arr.some(el=>el == "123")) alert('123')

More information on string and Array memeber functions.

edited Sep 30 '20 at 18:17

answered Feb 18 '12 at 03:20

Alex

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How do I then locate the section with "123" and echo whatever else is in the section :o? – Goulash Feb 18 '12 at 03:21
:) the section has more than just 123 in it though, so is there like a strstr() equivilient for Javascript? – Goulash Feb 18 '12 at 03:24
Use the `match()` function; see my answer below. – wecsam Feb 18 '12 at 03:28
@King review the documentation for the `JavaScript` string object and it's associated `methods` and `properties`... – Alex Feb 18 '12 at 03:30
`var string = "123 and stuf|34|23|2342|234", arr = string.split('|'), i; for(i in arr){ if(arr[i].search(123) != -1) alert(arr[i]); } ` – Goulash Feb 18 '12 at 03:35

Derek 朕會功夫 · Answer 2 · 2012-02-18T03:29:01.403

3

You can use split() in JavaScript:

var txt = "123|1203|3123|1223|1523|1243|123",
    list = txt.split("|");

console.log(list);

for(var i=0; i<list.length; i++){
    (list[i]==123) && (console.log("Found: "+i));  //This gets its place
}

LIVE DEMO: http://jsfiddle.net/DerekL/LQRRB/

edited Feb 18 '12 at 03:29

answered Feb 18 '12 at 03:22

Derek 朕會功夫

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score 1 · Answer 3 · edited Nov 03 '15 at 07:52

1

.split is the equivalent of explode, whereas .join is the equivalent of implode.

var myString = 'red,green,blue'; 
var myArray = myString.split(','); //explode
var section = myArray[1];
var myString2 = myArray.join(';'); //implode

edited Nov 03 '15 at 07:52

A J

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answered Feb 18 '12 at 03:22

Chad von Nau

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score 1 · Answer 4 · answered Feb 18 '12 at 03:28

This should do it:

var myString = "asd|3t6|2gj|123hhh", splitted = myString.split("|"), i;
for(i = 0; i < splitted.length; i++){ // You could use the 'in' operator, too 
    if(splitted[i].match("123")){
        // Do something
        alert(splitted[i]); // Alerts the entire contents between the original |'s 
        // In this case, it will alert "123hhh". 
    }
}

Javascript - explode equivilent?

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