This is important to know if you want to return a variable by reference. Please note that the ternary operator is an expression, and that it doesn’t evaluate to a variable, but to the result of an expression.
Php if else statement shorthand code#
Try not to use Ternary Operator in complex group of lines which will ultimately increase the complexity of code rather than minimizing the code. Ternary operator are very flexible if used properly but can be very confusing and increase the complexity if used improperly. Minimize code Abuse of Ternary Operator.Here, the expression evaluates to the value of expr1 if expr1 is true and expr2 otherwise: Similarly, there are also binary and unary operators. Expression expr1 ?: expr3 returns expr1 if expr1 evaluates to TRUE, and expr3 otherwise. Php Shorthand If Else Does PHP have ternary operator The ternary operator is the only operator in PHP which requires three operands: the condition, the true and the false result. Since PHP 5.3, it is possible to leave out the middle part of the ternary operator. In this case, it return true which is assigned to $result. It, it is true, it returns true, else returns false. In second line, it check the condition: is $variable is greater than 5 or not. Use the JavaScript ternary operator ( ?:)to make the code more concise.In this example, 10 is assigned to $var variable.If the logic contains many if.else statements, you should avoid using the ternary operators. It’s a good practice to use the ternary operator when it makes the code easier to read. PHP if Statement if Statement is used to execute some part of code when only one condition is true. ifelseifelse statement to implement the complex conditional logic you can use if inside if or if inside else. If you want to test if the variable is defined, use if users is defined instead. ifelse statement to execute some part of code when a condition is true and execute another part of code when the condition is false. Output: Fast Code language: JavaScript ( javascript ) The if statement in Twig is comparable with the if statements of PHP. Let message = speed >= 120 ? 'Too Fast' : speed >= 80 ? 'Fast' : 'OK'
Php if else statement shorthand how to#
The following example shows how to use two ternary operators in the same expression: let speed = 90 Let canChange = locked != 1 Code language: JavaScript ( javascript ) 3) Using multiple JavaScript ternary operators example In this case, you can simplify it by using a Boolean expression as follows: let locked = 1
If the locked is 1, then the canChange variable is set to false, otherwise, it is set to true. Let canChange = locked != 1 ? true : false Code language: JavaScript ( javascript ) See the following example: let locked = 1 In this example, the returned value of the ternary operator is the last value in the comma-separated list. redirect to nextURL here console.log(nextURL) // '/admin' Code language: JavaScript ( javascript ) ? (alert( 'You will redirect to admin area'), '/admin') The following example uses the ternary operator to perform multiple operations, where each operation is separated by a comma. 1) Using the JavaScript ternary operator to perform multiple statements Let’s take some examples of using the ternary operator. In this syntax, if the condition is true, the variableName will take the result of the first expression ( expressionIfTrue) or expressionIfFalse otherwise. The following shows the syntax of the ternary operator used in an expression: let variableName = condition ? expressionIfTrue : expressionIfFalse Code language: JavaScript ( javascript ) Making statements based on opinion back them up with references or personal experience. Since your if statement contains two lines, shorthand does not work.
If it is false, the second expression ( expressionIfFalse) executes. Shorthand only works for one-line statements. If the condition is true, the first expression ( expresionIfTrue) executes. In this syntax, the condition is an expression that evaluates to a Boolean value, either true or false. Here’s the syntax of the ternary operator: condition ? expressionIfTrue : expressionIfFalse Code language: JavaScript ( javascript ) Message = age >= 16 ? 'You can drive.' : 'You cannot drive.' Or you can use the ternary operator in an expression as follows: let age = 18 Alternatively, you can use a ternary operator instead of the if-else statement like this: let age = 18 Īge >= 16 ? (message = 'You can drive.') : (message = 'You cannot drive.') In this example, we show a message that a person can drive if the age is greater than or equal to 16. For example: let age = 18 Ĭonsole.log(message) Code language: JavaScript ( javascript ) When you want to execute a block if a condition evaluates to true, you often use an if…else statement. Introduction to JavaScript ternary operator
Summary : in this tutorial, you will learn how to use the JavaScript ternary operator to make your code more concise.
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