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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

过时
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

Number.toInteger() method used to evaluate the passed value and convert it to an integer, but its implementation has been removed.

If the target value is NaN , null or undefined , 0 is returned. If the target value is false , 0 is returned and if true , 1 is returned.

句法

Number.toInteger(number)
					

参数

number

The value to be converted to an integer.

范例

使用 toInteger

Number.toInteger(0.1);     // 0
Number.toInteger(1);       // 1
Number.toInteger(Math.PI); // 3
Number.toInteger(null);    // 0
					

规范

Not part of any standard. Number.toInteger() was part of the draft ECMAScript 6 specification, but has been removed on August 23, 2013 in Draft Rev 17.

浏览器兼容性

Not supported anywhere. Historically supported in Firefox 16 till 31.

另请参阅

• Number

元数据

• 最后修改： Apr 27, 2020

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