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1 maj 2024 · The while statement creates a loop that executes a specified statement as long as the test condition evaluates to true. The condition is evaluated before executing the statement.
19 cze 2022 · The while loop has the following syntax: while (condition) { // code // so-called "loop body" } While the condition is truthy, the code from the loop body is executed. For instance, the loop below outputs i while i < 3: let i = 0; while (i < 3) { // shows 0, then 1, then 2 alert ( i ); i++; }
24 lip 2017 · while statement. A while statement executes its statements as long as a specified condition evaluates to true. A while statement looks as follows: while (condition) statement. If the condition becomes false, statement within the loop stops executing and control passes to the statement following the loop.
The JavaScript while statement creates a loop that executes a block as long as a condition evaluates to true. The following illustrates the syntax of the while statement: while (expression) { // statement} Code language: JavaScript (javascript) The while statement evaluates the expression before each iteration of the loop. If the expression ...
Syntax. while (condition) { // code block to be executed. } Example. In the following example, the code in the loop will run, over and over again, as long as a variable (i) is less than 10: Example. while (i < 10) { text += "The number is " + i; i++; } Try it Yourself »
The do...while statements combo defines a code block to be executed once, and repeated as long as a condition is true. The do...while is used when you want to run a code block at least one time.
15 lut 2020 · JavaScript Loops Explained: For Loop, While Loop, Do...while Loop, and More. Loops are used in JavaScript to perform repeated tasks based on a condition. Conditions typically return true or false. A loop will continue running until the defined condition returns false.
