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String functions 2
- Thread starter jgos
- Start date
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1
- #2
you can do mostly everything VB can do in JS (as far as web pages are concerned).
to check the length of a string you can do :
var myString = "this is my test string"
alert(myString.length)
Also if you have a string like this one "test,test,test,test" you can change it to an array using split(',') and remove the last element in it.
var myString = "test,test,test,test";
alert("my original string " + myString)
var myArray = myString.split(',')
myArray.pop(); // removes the last element of my array
myString = myArray.join(','); // creates a coma delimited string
alert("now my string with the last element removed " + myString)
Does this help you out? Gary Haran
to check the length of a string you can do :
var myString = "this is my test string"
alert(myString.length)
Also if you have a string like this one "test,test,test,test" you can change it to an array using split(',') and remove the last element in it.
var myString = "test,test,test,test";
alert("my original string " + myString)
var myArray = myString.split(',')
myArray.pop(); // removes the last element of my array
myString = myArray.join(','); // creates a coma delimited string
alert("now my string with the last element removed " + myString)
Does this help you out? Gary Haran
- Thread starter
- #3
What I really want to do is change the value of a checkbox on a form. Right now I have a value on the checkbox that is a string of comma-delimeted parameters. I use these to build a query string to pass to a popup window that runs some asp code and returns values back to the parent page in javascript. I want to change the last character on the checkbox value from the child page so I need to run something like in vb:
myString = left(myString, Len(myString) -1) & "0"
Can javascript do anything like this?
myString = left(myString, Len(myString) -1) & "0"
Can javascript do anything like this?
i'm not sure what left does in VBscript.
However if all you want to do is change the last character of a string you can use substring.
var myString = "this is my string ";
myString = myString.substring(0, myString.length-1) + "0";
alert(myString)
I hope this helps!
Gary Haran
However if all you want to do is change the last character of a string you can use substring.
var myString = "this is my string ";
myString = myString.substring(0, myString.length-1) + "0";
alert(myString)
I hope this helps!
Gary Haranstar for two great examples with these two functions
xutopia
left simple returns a specified number of characters from the left side of a string.
A language that doesn't affect the way you think about programming is not worth knowing.
admin@onpntwebdesigns.com
xutopia
left simple returns a specified number of characters from the left side of a string.
A language that doesn't affect the way you think about programming is not worth knowing.
admin@onpntwebdesigns.com
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1
- #6
Here is a good link for some VBScript/Javascript equivalents.
Excellent link helltel, a star to you for providing it. Gary Haran
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