CODEWITHSUNDEEP
javascriptjqueryarrays
neda Derakhshesh
neda Derakhshesh

Reputation: 1163

getting numbers from a string with the help of javascript

I am working in a project which it needs to get a phone number from a string. the string is like this in Java Script array named dine

{
"group": 1, 

"tel1": "Tél(1): 05.82.77.31.78", 
"tel2": "Tél(2): 09.55.86.31.45", 

}, 
,...

I want to use pure phone numbers in a tag like this 

<a href="tel:0970500469">Tél: 09.70.50.04.69</a>

I have used this java script codes 

for (var i = 0; i < dine.length; i++) {
  telnom = dine[i].tel1;
  telnom = telnom.replace(/\D/g, '');

  alert(telnom);

  telnom2 = dine[i].tel2;
  telnom2 = telnom2.replace(/\D/g, '');
  alert(telnom2);

  infoHtml += '<div class="info">\n <p> <a href="tel:' + telnom + '">' + dine[i].tel1 + '</a></p>\n    <p> <a href="tel:' + telnom2 + '">' + dine[i].tel2 + '</a></p>\n  \n</div>';
}

the problem is that it added 1 at the beginning of my phone number that it seems belongs to the Tél(1) and makes the telnom1 like this : 10970500469 while I want to call 0970500469

I am sure the problem stand for the way I used replace codes but I really do not know how to correct it.

 telnom = dine[i].tel1;

 telnom = telnom.replace(/\D/g, '');

 telnom2 = dine[i].tel2;

 telnom2 = telnom2.replace(/\D/g, '');

I really appreciate any help. thank you

Upvotes: 1

Views: 69

Answers (3)

im_tsm
im_tsm

Reputation: 2051

You can use the following regex to get the desired telephone number:

var n = "Tél(1): 05.82.77.31.78".match(/[\d]\d+/g).join("");
console.log(n);

Explanation: [\d] matches only numbers and we are adding another \d so only two numbers which are side-by-side matches. Next, we join them to a single string. If you need number instead of the string you can do following: Number(n)

Upvotes: 1

Szab
Szab

Reputation: 1263

If your phone numbers always start with something like Tel:, Tel(1): etc you could, for example, consider simply splitting the whole string first using : (or a space) as separators. Like this: 

telnom = dine[i].tel1;
telnom = telnom.split(":")[1].replace(/\D/g, '');

Upvotes: 1

Ahmad
Ahmad

Reputation: 12737

You need to remove any digits that appear within brackets, as well as non digits. Your regext should be /(\(\d*\)|\D)/g

var telnom = "Tel:(1) - 05.34.36.15"

telnom = telnom.replace(/(\(\d*\)|\D)/g, '');

console.log(telnom);   //05343615

Upvotes: 2

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