We have a string ,
var str = "Name=XYZ;State=TX;Phone=9422323233";
Here in the above string we need to fetch only the State value i.e TX. That is 2 characters after the substring State=
Can anyone help me implement it in javascript.
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5 Answers
.split() the string into array and then find the index of the array element having State string. Using that index get to that element and again .split() it and get the result. Try this way,
var str = "Name=XYZ;State=TX;Phone=9422323233";
var strArr = str.split(';');
var index = 0;
for(var i = 0; i < strArr.length; i++){
if(strArr[i].match("State")){
index = i;
}
}
console.log(strArr[index].split('=')[1]);
2 Comments
Skyrim
Thanks. However the State= position will be different sometimes. That is we may get the string as "Name=XYZ;Phone=9422323233;State=TX";
Md Ashaduzzaman
@Skyrim, Then you need to find the index of the
State after using split() on it. And then get the value of State. Check the updated answer.I guess the easiest way out is by slicing and splitting
var str = "Name=XYZ;State=TX;Phone=9422323233";
var findme = str.split(';')[1];
var last2 = findme.slice(-2);
alert(last2);
Need more help? Let me know
Comments
indexOf returns the position of the string in the other string.
Using this index you can find the next two characters
javascript something like
var n = str.indexOf("State=");
then use slice method
like
var res = str.slice(n,n+2);
another method is :
use split function
var newstring=str.split("State=");
then
var result=newstring.substr(0, 2);
Comments
Check this:
var str1 = "Name=XYZ;State=TX;Phone=9422323233";
var n = str1.search("State");
n=n+6;
var res = str1.substr(n, 2);
The result is in the variable res, no matter where State is in the original string.
2 Comments
Md Ashaduzzaman
what about this string
var str = "Name=XYZ;Phone=9422323233;State=TXBBP";? It won't work with your code I guess.
jcbermu
It will bring out "TX" only, because is selecting only two characters. Is the state code of variable length?
There are any number of ways to get what you're after:
var str = "Name=XYZ;State=TX;Phone=9422323233"
Using match:
var match = str.match(/State=.{2}/);
var state = match? match[0].substring(6) : '';
console.log(state);
Using replace:
var state = str.replace(/^.*State=/,'').substring(0,2);
console.log(state);
Using split:
console.log(str.split('State=')[1].substring(0,2));
There are many other ways, including constructing an object that has name/value pairs:
var obj = {};
var b = str.split(';');
var c;
for (var i=b.length; i; ) {
c = b[--i].split('=');
obj[c[0]] = c[1];
}
console.log(obj.State);
Take your pick.
4 Comments
Arunprasanth K V
Nice answer, i am also give an answer to this question . but your answer is so nice, it shows how to approach a problem in different ways .
Md Ashaduzzaman
who knows if
State will always have a value with length of 2? You last solution is your best one.
RobG
@AshadShanto—"That is 2 characters after the substring State=". The object method addresses that aspect too.
Arunprasanth K V
@AshadShanto you are right, but with a simple validation he can do that