[英]I am trying to use JavaScript in (php > while loop) and give me action for each result
[英]I am trying to use a for loop in javascript to create a a table that displays * and for each row the columns increase by 1 *
***let numRows = 5;
let numColumns = 10;
let strRowOutput = "";
for (let row = 1; row <= numRows; row++) {
for (let column = 1; column <= numColumns; column++) {
strRowOutput += "*";
}
console.log(strRowOutput);
strRowOutput = "";
}
console.log();***
这就是到目前为止的代码,但它只显示带有 10* 的最后一行。 在此处输入图片说明
第二个 for 循环条件应该依赖于第一个 for 循环中的变量,如column <= row
或者如果要将列限制为最大值,则可以使用column <= Math.min(row, numColumns)
我在这里使用第二种方法
工作小提琴
let numRows = 5; let numColumns = 10; let strRowOutput = ""; for (let row = 1; row <= numRows; row++) { for (let column = 1; column <= Math.min(row, numColumns); column++) { strRowOutput += "*"; } console.log(strRowOutput); strRowOutput = ""; } console.log();
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