Questions tagged [lastindexof]
125 questions
87
votes
7 answers
Last index of a given substring in MySQL
We can find the index of the first occurrence of a given substring in MySQL using the INSTR() function as follows.
SELECT instr('Have_a_good_day', '_') AS index_position
It would display 5, the first occurrence of the specified substring which is…
Tiny
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42
votes
4 answers
indexOf and lastIndexOf in PHP?
In Java, we can use indexOf and lastIndexOf. Since those functions don't exist in PHP, what would be the PHP equivalent of this Java code?
if(req_type.equals("RMT"))
pt_password = message.substring(message.indexOf("-")+1);
else
pt_password…
Gaurav
- 439
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19
votes
7 answers
How to check the last char of a string and see its a blank space
How to check the last char of a string and see its a blank space? If its a blank space remove it?
user339160
12
votes
1 answer
How to find the last occurrence of a set of characters from a string
I'm trying to find the last operator (+, -, * or /) in a string.
I was trying to use the method string.indexof('operator', i);, but in this case I could only get the single type of operator. Is there any better solution for this?
The value of string…
mega6382
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9
votes
7 answers
Find the lastIndexOf() an object with a key in array of objects
I'm looking for a way to find the last index of an object in Javascript from a point in an array. For example:
array.lastIndexOf(object.key, start);
So far, I haven't found a good solution for this problem. I could splice the array from the…
Xari
- 266
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6
votes
3 answers
lastIndexOf() to find last alphanumeric character
I have a string, and I need to find the last occurrence of any alphanumeric char in this string. Whichever the last alphanumeric character is in the string, I want that index. For
text="Hello World!- "
the output would be the index of…
Iverie
- 85
- 1
- 5
5
votes
10 answers
How to get characters from second last index using indexof in javaScript?
var absoluteURL = "http://stackoverflow.com/users/6262169/vikas-kohli"
var n = absoluteURL.lastIndexOf('/');
var result = absoluteURL.substring(n + 1);
//alert(result);
console.log(result);
Here I get the result like 'vikas-kohli' as I…
VIKAS KOHLI
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5
votes
4 answers
String.Contains and String.LastIndexOf C# return different result?
I have this problem where String.Contains returns true and String.LastIndexOf returns -1. Could someone explain to me what happened? I am using .NET 4.5.
static void Main(string[] args)
{
String wikiPageUrl =…
user3430150
- 53
- 5
4
votes
6 answers
Remove the last part of a String in Java
My Code:
String Y = "part1 part2 part3", X = "part1";
boolean foundMatch = false;
while(!foundMatch) {
foundMatch = Y.equals(X);
if(foundMatch) {
break;
}
else {
Y = useSplitToRemoveLastPart(Y);
…
Praneel PIDIKITI
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4
votes
1 answer
How is lastIndexOf() better than indexOf() in this case?
Here's Google's implementation of String.startsWith() taken from Closure Library:
goog.string.startsWith = function(str, prefix) {
return str.lastIndexOf(prefix, 0) == 0;
};
I was wondering why did they choose lastIndexOf over indexOf given the…
resu
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4
votes
2 answers
How to get last position of a character in LibreOffice Calc
I want to get last occurrence from multiple occurrences of a character in LibreOffice Calc.
For e.g. I have a string abc1ba2ac2adeaa43add. Now if I am searching for a it should return 18.
Ashvin Kanani
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4
votes
2 answers
lastIndexOf Confusion
I really dont understand how lastIndexOf works. I could not get the usage of second optional parameter.
string.lastIndexOf(searchvalue,start)
searchvalue -> Required. The string to search for
start -> Optional. The position where to start the…
Barış Velioğlu
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3
votes
5 answers
Java - String.lastIndexOf(str) logic I cannot understand
I used two different string to test the last index of "\t", but they both return 4. I thought it should be 5 and 4. I checked the oracle docs and I could not understand why. Could someone please tell me why? Thank…
Carl
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3
votes
2 answers
Substring and IndexOf and LastIndexOf in c#
I have this string :
464-138234-AVENANCE
And I need this output on three items :
464
138234
AVENANCE
For first item I have try with success :
strMyString.SelectedItem.Value.Substring(0, strMyString.SelectedItem.Value.IndexOf('-'))
Output :…
Antonio Mailtraq
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3
votes
1 answer
Split String by last occurence
I have a String like this:
www.myserver.net/Files/Pictures/2014/MyImage.jpg
And I want to split it, so I get the Substring after the last occurence of /.
Which means I like to get MyImage.jpg
I tried it like this:
…
nexno
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