CODEWITHSUNDEEP
javascriptjquery
Siddiq Baig
Siddiq Baig

Reputation: 586

javascript contains not working on chrome

i am trying to find specific text inside textbox using jquery or javascript but it`s not working on chrome

Senerio: i want to add .0 after string but if .0 or .5 etc already exist then do not add .0 after string

$("#ctl00_ContentPlaceHolder1_txtquantity").blur(function() {
                    var stringvalue = $("#ctl00_ContentPlaceHolder1_txtquantity").val();
                    if (!stringvalue.contains('.0')) {
                        var result = stringvalue + ".0";
                        stringvalue = result;
                        $("#ctl00_ContentPlaceHolder1_txtquantity").val(stringvalue);

                    }
                    });

Upvotes: 0

Views: 1005

Answers (1)

axelduch
axelduch

Reputation: 10849

It is not a cross browser solution yet to use String.prototype.contains.

You can use a regular expression though to check if it fits the end of your string

Replace 

if (!stringvalue.contains('.0')) {

By

if (!stringvalue.match(/\.[0-9]+$/)) {

Also even though it were cross browser, String.prototype.contains wouldn't do what you want as you have to cover the cases for any digit sequence behind the mantisse. It would require you to loop through each of the 10 use cases (from 0 to 9) as contains only accepts a search string and an optional start position.

An even weirder use case is if your number only ends with "." which is a parsable float in JavaScript...

In this case you could use a greedy regex to do this:

if (!stringvalue.match(/\.[0-9]*$/)) {

Upvotes: 3

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