javascript slice string after dashes

Question

I have this code :

widget-ads-120-240[3][link-100]

I want to change "100" with js. maybe 100 is 5 or 1 . it's an id.

I have this one too

widget-ads-120-240-3-link-1

I need two or one code for these .

score 0 · Accepted Answer · edited May 23 '17 at 12:07

0

String.prototype.replaceAt = function(index, character) {
    return this.substr(0, index) + character + this.substr(index + character.length);
}

'widget-ads-120-240-3-link-100'.replaceAt('widget-ads-120-240-3-link-100'.lastIndexOf('-') + 1, '200');

replaceAt taken from https://stackoverflow.com/a/1431113/2025923

Demo: https://jsfiddle.net/tusharj/kat5mr5x/1/

edited May 23 '17 at 12:07

Community

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answered May 19 '15 at 11:18

Tushar

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tanks Mr.Tushar :D <3 – daniel May 20 '15 at 08:38
i have a problem i worked on it from yesterday to now :D 200 have to be string ? i have problem with make string this number – daniel May 20 '15 at 11:51
@daniel Yes, it has to be `string`, because we are using `.length` on it inside `replaceAt()` – Tushar May 20 '15 at 12:17
String(i) if the number is 21 it returns 210 do you have email ? – daniel May 20 '15 at 13:37

score 0 · Answer 2 · answered May 19 '15 at 11:18

0

try:

'widget-ads-120-240[3][link-100]'.replace(/(link-)[0-9]*/,'$1'+the_change_value)

answered May 19 '15 at 11:18

Yangguang

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javascript slice string after dashes

2 Answers2