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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 »
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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 )
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.
JavaScript while Loop. The while loop repeatedly executes a block of code as long as a specified condition is true. The syntax of the while loop is: while (condition) { // body of loop } Here, The while loop first evaluates the condition inside ( ). If the condition evaluates to true, the code inside { } is executed.
The JavaScript while Tutorial. JavaScript Loop Statements. Syntax. while (condition) {code block to be executed} Parameters. Note. If the condition is always true, the loop will never end. This will crash your browser. If you use a variable in the condition, you must initialize it before the loop, and increment it within the loop.
The syntax of do-while loop is as follows: do { // body of loop } while (condition); The do keyword is followed by a body enclosed in curly braces and a condition is enclosed in parenthesis. The following example shows the execution of the do-while loop.
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