I have this values:
How do I get the value inside [] only I don't need any other value. Just the string inside the [] part like Sachet or Others in javascript. I need them and Pass it to my ajax function
Using a regular expression is the fastest way here; you can use this one: (\[\w+\])+ or (\[.*\]) or \[(.*?)].
UPDATE
var samples = [ '4Green (Blister) [Others]', '!@#$%^&*()\'RWEW<>?P{}:" [Sachet]',
'TRIAL [Sachet]'];
var regex = /\[(.*?)]/;
for (var i = 0; i < samples.length; i++) {
console.log(samples[i].match(regex)[1]);
}
Output:
machina@6PXM10I> node regex.js
Others
Sachet
Sachet
If you don't want to use a regular expression for whatever reason, you can do it this way:
You could obtain each string you want to test, perhaps with document.getElementsByClassName, and then cycle through the array-like Collection it returns to extract each string.
Then, use the "indexOf()" method to find the start and end of each bracket. Here's more info on "indexOf()" http://www.w3schools.com/jsref/jsref_indexof.asp
Once you have the start and end of each bracket, use the substring method to extract the contents of the brackets. More info on the substring method here: http://www.w3schools.com/jsref/jsref_substring.asp
The end result would look something like this:
var myStrings = document.getElementsByClassName("classNameHere");
for(var i = 0; i < myStrings.length; i++){
var start = myStrings[i].indexOf("[");
var end = myStrings[i].indexOf("]");
var extractedString = myStrings[i].substring(start, end);
// Do your Ajax call here with the "extractedString" variable
}
You can do the following:
var myString = "TRIAL [Sachet]";
var myRegexp = /\[(.*)\]+/g;
var match = myRegexp.exec(myString);
alert(match[1]);
That regex will get you anything inside the [].
One more thing for you to not is !@#$%^&*()'RWEW<>?P{}:" [Sachet] invalid string and you will need to escape the quotes.
!@#$%^&*()'RWEW<>?P{}:\" [Sachet]
Note the \ before "
