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What is the meaning of while in javascript

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Release： 2021-12-07 14:00:02
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In JavaScript, while means "when...the condition is met". It is a loop statement with the syntax of "while (condition) {code block to be executed}"; when the specified condition is true , the while loop will continue to execute the code block in "{}".

What is the meaning of while in javascript

The operating environment of this tutorial: Windows 10 system, JavaScript version 1.8.5, Dell G3 computer.

What does while mean in JavaScript

In JavaScript, the meaning of while is "when...", "when... is satisfied. ..conditions”. Is a loop statement, the while loop will continue to loop through the code block as long as the specified condition is true.

The syntax is as follows: 

while (条件) {要执行的代码块}
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The example is as follows: 

<html>
<body>
<h2>JavaScript while</h2>
<p id="demo"></p>
<script>
var text = "";
var i = 0;
while (i < 10) {
  text += "<br>数字是 " + i;
  i++;
}
document.getElementById("demo").innerHTML = text;
</script>
</body>
</html>
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Output result:

What is the meaning of while in javascript

[Recommended learning ：javascript advanced tutorial】

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