Use the substring method: var length = 3; var myString = “ABCDEFG”; var myTruncatedString = myString.substring(0,length); // The value of myTruncatedString is “ABC” So in your case: var length = 3; // set to the number of characters you want to keep var pathname = document.referrer; var trimmedPathname = pathname.substring(0, Math.min(length,pathname.length)); document.getElementById(“foo”).innerHTML = “<a href=”” … Read more
Use cut. Eg. to strip the first 4 characters of each line (i.e. start on the 5th char): tail -f logfile | grep org.springframework | cut -c 5-
floor will do as you ask. floor(45.8976 * 100) / 100; You won’t find a more direct function for this, since it’s a kind of odd thing to ask. Normally you’ll round mathematically correct. Out of curiosity – What do you need this for?
You can use Math.Round: decimal rounded = Math.Round(2.22939393, 3); //Returns 2.229 Or you can use ToString with the N3 numeric format. string roundedNumber = number.ToString(“N3”); EDIT: Since you don’t want rounding, you can easily use Math.Truncate: Math.Truncate(2.22977777 * 1000) / 1000; //Returns 2.229
You can calculate the width of the string and see if the width is greater than label.bounds.size.width NSString UIKit Additions has several methods for computing the size of the string with a specific font. However, if you have a minimumFontSize for your label that allows the system to shrink the text down to that size. … Read more
Doubles don’t have decimal places – they’re not based on decimal digits to start with. You could get “the closest double to the current value when truncated to three decimal digits”, but it still wouldn’t be exactly the same. You’d be better off using decimal. Having said that, if it’s only the way that rounding … Read more
This has come up a few times recently, both on SO and on the PostgreSQL mailing lists. The TL;DR for your last two points: (a) The bigger shared_buffers may be why TRUNCATE is slower on the CI server. Different fsync configuration or the use of rotational media instead of SSDs could also be at fault. … Read more
Yes you can: SET FOREIGN_KEY_CHECKS = 0; TRUNCATE table1; TRUNCATE table2; SET FOREIGN_KEY_CHECKS = 1; With these statements, you risk letting in rows into your tables that do not adhere to the FOREIGN KEY constraints.
There isn’t a Truncate() method on string, unfortunately. You have to write this kind of logic yourself. What you can do, however, is wrap this in an extension method so you don’t have to duplicate it everywhere: public static class StringExt { public static string Truncate(this string value, int maxLength) { if (string.IsNullOrEmpty(value)) return value; … Read more
If you want that for display purposes, use java.text.DecimalFormat: new DecimalFormat(“#.##”).format(dblVar); If you need it for calculations, use java.lang.Math: Math.floor(value * 100) / 100;