Sep 19, 2010 · I think the more important question is "why does JavaScript have both a substr method and a substring method"? This is really the preferred method of overloading?

Apr 4, 2013 · You're confusing substring() and substr(): substring() expects two indices and not offset and length. In your case, the indices are 5 and 2, ie characters 2..4 will be returned as the higher index is excluded.

Mar 3, 2020 · Let say I have the following strings: var Y = "TEST" var X = "abc 123 TEST 456 def" I would like to get the string from X that comes after the word that specified in Y. In this example it will ...

Apr 1, 2019 · I get confused as to which language uses which substring command, looks like javascript can use either one though, although it looks like only substr works properly for negative numbers. Looks like even w3schools is confused to the operation of substr, stating for negative number: <br/> If start is negative, substr () uses it as a character index from the end of the …

Feb 11, 2010 · substr() selects all characters from the start-position to the end of the string substring() selects all characters from the start-position to the end of the string Note #7: slice()==substr()==substring() So, you can say that there's a difference between slice() and substr(), while substring() is basically a copy of slice().

Oct 18, 2018 · I would like to get the starting position of the 2nd occurrence of ABC with something like this: var string = "XYZ 123 ABC 456 ABC 789 ABC"; getPosition (string, 'ABC', 2) // --> 16 How would yo...

Aug 15, 2010 · I need to do a lot of regex things in javascript but am having some issues with the syntax and I can't seem to find a definitive resource on this.. for some reason when I do: var tesst = "afskfsd3...

Oct 24, 2010 · It depends on whether you accept overlapping instances, e.g. var t = "sss"; How many instances of the substring "ss" are in the string above? 1 or 2? Do you leapfrog over each instance, or move the pointer character-by-character, looking for the substring?

I have a shopping cart that displays product options in a dropdown menu and if they select "yes", I want to make some other fields on the page visible. The problem is that the shopping cart also

Jun 14, 2016 · I have a string containing a person's first and last name such as John Doe. I would like to convert this string to John D. Normally, I would just use substring(0,1) on the last name variable, but how can I achieve this when the first and last name are one string with a …