Javascript if string contains a space replace the space with a dash - Stack Overflow

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I'm trying to write some code that will check if a previously defined variable has a space, and if it does, replace the space with a dash. This will be nested in another function.

function foo(){            
    // If stateName has a space replaces the space with a dash

    window.open('/state-solar-policy/' + stateName);
}

I'm trying to write some code that will check if a previously defined variable has a space, and if it does, replace the space with a dash. This will be nested in another function.

function foo(){            
    // If stateName has a space replaces the space with a dash

    window.open('http://website.html/state-solar-policy/' + stateName);
}

• javascript
• string
• replace

Share Improve this question Follow edited Jun 27, 2012 at 21:23 Liam McInroy 4,36655 gold badges3535 silver badges5454 bronze badges asked Jun 27, 2012 at 21:15 user1486922user1486922 3111 gold badge11 silver badge22 bronze badges 3

• Here's the opposite, reverse the function args. – Michael Berkowski Commented Jun 27, 2012 at 21:18
• 2 Why check? If there isn't a space to replace, nothing will happen, so you can forget the check. Just str = str.replace(' ','-'); – DanRedux Commented Jun 27, 2012 at 21:18
• @DanRedux. " " is only one white space option. \s capture them all. – gdoron Commented Jun 27, 2012 at 21:19

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3 Answers 3

Sorted by: Reset to default 9

Use this regex:

stateName.replace(/\s/g,"-");

It will replace all white spaces chars with a dash (-)

Note that the regex will cause no troubles if the string doesn't have a space in it.
It replaces every white-space if finds with a dash, if it doesn't find, it does nothing.

var string = "blah blah blah"
var new_string = string.replace(" ", "-");

var string="john doe is great";
var dashedstring=string.split(" ").join("-");

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