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Get Substring of a String by Startindex and Endindex


Get Substring of a String by Startindex and Endindex

By : Rampo
Date : November 21 2020, 04:01 AM
help you fix your problem The second argument in String.Substring is the length, so the number of characters that should be taken from the first argument's index. You should look for the brackets instead:
code :
Dim startIndex = name.IndexOf("["c)
If startIndex >= 0 Then
    Dim endIndex = name.IndexOf("]"c, startIndex)
    If endIndex >= 0 Then
       startIndex += 1 ' because you dont want to include the  brackets
       Dim data = name.Substring(startIndex, endIndex - startIndex)
    End If
End If


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Why is "out of range" not thrown for 'substring(startIndex, endIndex)'

Why is "out of range" not thrown for 'substring(startIndex, endIndex)'


By : bones neroh
Date : March 29 2020, 07:55 AM
it should still fix some issue According to the Java API doc, substring throws an error when the start index is greater than the Length of the String.
code :
"emptiness".substring(9) returns "" (an empty string)
|0| A |1| B |2| C |3| D |4| E |5|
Join Array from startIndex to endIndex

Join Array from startIndex to endIndex


By : Lazauya
Date : March 29 2020, 07:55 AM
With these it helps I wanted to ask if there is some kind of utility function which offers array joining while providing an index. Maybe Prototype of jQuery provides this, if not, I will write it on my own :) , It works native
code :
["a", "b", "c", "d"].slice(1,3).join("-") //b-c
Array.prototype.myJoin = function(seperator,start,end){
    if(!start) start = 0;
    if(!end) end = this.length - 1;
    end++;
    return this.slice(start,end).join(seperator);
};

var arr = ["a", "b", "c", "d"];
arr.myJoin("-",2,3)  //c-d
arr.myJoin("-") //a-b-c-d
arr.myJoin("-",1) //b-c-d
Who does substring(startIndex,endIndex) return string from startIndex start till endIndex-1?

Who does substring(startIndex,endIndex) return string from startIndex start till endIndex-1?


By : Ive
Date : March 29 2020, 07:55 AM
this one helps. Inclusive means that the item at that index will be included. Exclusive means that the item at that index will not be included.
The true reasons for this can only be guessed, unless you can find a comment in source code explaining it (possible), or find and ask the original author(s) (highly unlikely).
JavaScript replace() if string found between startIndex and endIndex as substring() does

JavaScript replace() if string found between startIndex and endIndex as substring() does


By : Anish Mathew
Date : March 29 2020, 07:55 AM
wish helps you I don't think that jQuery is necessary here.
First, you want to retrieve your container, which in your case will be the .wrap div.
code :
var container = document.querySelector('.wrap');
function replacement(containers, data){

    if(!data || !data.length)
        return;

    for(let i=0; i<containers.length; i++){

        var container = containers[i];

        // Trigger the recursion on the childrens of the current container
        if(container.children.length)
            replacement(container.children, data);

        // Perform the replacement on the actual container
        for(let j=0; j<data.length; j++){
            var index = container.textContent.indexOf(data[j].original);

            // Data not found
            if(index === -1)
                continue;

            // Remove the data from the list
            var replace = data.splice(j, 1)[0];
            container.innerHTML = container.innerHTML.replace(replace.original, '<strong>' + replace.new + '</strong>');

            // Lower the j by 1 since the data array length has been updated
            j--;

            // Only want to perform one rule
            break;

        }
    }
}
Why is startIndex not equal to endIndex shifted to startIndex position in String in Swift?

Why is startIndex not equal to endIndex shifted to startIndex position in String in Swift?


By : user2750090
Date : March 29 2020, 07:55 AM
wish helps you The raw bits of the index are an implementation detail. As you see in your example, the two values are equal (they return true for ==).
As to the current implementation, bit 8 is set, which is not part of the position. That's a cached value for the offset to the next grapheme cluster, which is 1 byte away. It's telling you that there's one byte to the next grapheme (which it didn't know until you calculated the endIndex).
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