Question – How to Append an Item to Array in PHP. How do I append any element to end of the existing Array in PHP? How to push element to array in PHP? This tutorial uses array_push() function to insert or append a new element to end of the Array. PHP – Append Element...
Question: How do I remove last character from a string in JavaScript or Node.js script? This tutorial describes 2 methods to remove last character from a string in JavaScript programming language. You can use any one of the following methods as per the requirements. Method 1 – substring function Use the substring() function to...
This tutorial will help you to check if a string contains any substring in PHP programming language. For example, you want to run a specific line of code only if any input string contains another substring in it. Example 1. The following code will evaluate to true because the main string $str contains the...
How to search a directory tree for all files containing specific text string on Linux using the command line. This tutorial will help you to search all files matching a string recursively. This tutorial uses “grep” command to search string in files. Alternatively, You can also also use the find command to search files...
Java is an object orientied programming languege. In Java you can use Integer.parseInt() or Integer.valueOf() functions to convert String value to an int value. In any case String is not a convertible then NumberFormatException will occur. #1. Using Integer.parseInt() Integer.parseInt() converts string value and returns an int primitive as result. For below example, first,...
Java provides two options for string compare. First is == operator and second is .equals() function for Java string compare. This Java tutorial will help you to understand string comparison under Java and difference between == and .equals() for string comparison in Java. Operator == checks for the object reference and matches true if...
While working with php programming language, This article will help you to split comma, colon or any other delimited string in to array. Use php explode function to split delimited string to array. $myArray = explode(',', $myString); Example: Create a php script file and use following code. This example code is using command (,)...
Syntax: sed -i ‘/Text to Delete/d’ /path/to/file SED is an Stream Editor having capability to remove lines from file having specific string. Using -i with sed we can remove line in same file. Example 1: Remove all lines from /var/log/messages having string “DELETE THIS TEXT” and restore output in new file. Do not make...
Syntax: string.trim(); JavaScript trim() function is used for removing spaces before and after a string. Following example will help you to remove trailing and preceding white space using JavaScript . If you are searching for fixing issue with trim() function in old browsers, check below Example 2. Example 1: For example if a variable...
The JavaScript indexOf() method search for the substring in string and returns the position of the first occurrence of a specified substring. If substring not found, it returns -1. So you can use JavaScript IndexOf() method to check if a string contains substring in it. In this tutorial we will also provides example to...