句号 middle dot: ・ 中间点 interpunct: · 间隔号 hyphenation point: · 连字点 solidus: / 斜线 colon: : 冒号 semicolon: ; 分号 less-than sign: < 小于符号 equals sign: = 等于符号 greater-than sign: > 大于符号 question mark: ? 问号 low line: _ 下划线 digital 0: 0 数字 0 latin ...
match()方法是最常用的String正则表达式方法。它的唯一参数就是一个正则表达式(或通过RegExp()构造函数将其转换为正则表达式),返回的是一个由匹配结果组成的数组。 "1 plus 2 equals 3".match(/\d+/g) // 返回 ["1", "2", "3"] 例如,使用如下的代码来解析一个URL: var url = /(\w+):\/\/(...
These will require test to appear directly after the start of the string and directly before the end of the string respecitivly. var matchString = "Test"; if (matchString.match(/^test$/i)) { alert('matchString equals "test" case insensitive'); } else { alert('matchString does not e...
// 1.MyClass.prototype.myMethod = function() {return 42;} // No semicolon here.(function() {// Some initialization code wrapped in a function to create a scope for locals.})();var x = {'i': 1,'j': 2} // No semicolon here.// 2. Trying to do one thing on Internet ...
/** @enum {string} */ some.long.namespace.Fruit = { APPLE: 'a', BANANA: 'b' }; myapp.main = function() { var Fruit = some.long.namespace.Fruit; switch (fruit) { case Fruit.APPLE: ... case Fruit.BANANA: ... } };
match()方法是 String 正则表达式方法中最通用的。它将正则表达式作为唯一参数(或通过将其传递给RegExp()构造函数将其参数转换为正则表达式)并返回一个包含匹配结果的数组,如果没有找到匹配则返回null。如果正则表达式设置了g标志,该方法将返回出现在字符串中的所有匹配项的数组。例如: "7 plus 8 equals 15".match...
拥有equals 函数的对象。equals 可以用来和其它相同类型的对象比较。Array.prototype.equals = function (arr) { const len = this.length if (len !== arr.length) { return false } for (let i = 0; i < len; i++) { if (this[i] !== arr[i]) { return false } } return true } ;[1,...
For all non-Object types, including both Null and Undefined, [t]he result equals the input argument (no conversion). So ToPrimitive does nothing here. Finally, Section 9.8 ToString The abstract operation ToString converts its argument to a value of type String according to Table 13: Table 1...
The value returned (y, or $y in this case) can be a number, a string, or a Boolean value (named after George Boole, a nineteenth-century English mathematician and philosopher). By now, you should be familiar with the first two value types, but I’ll explain the third. TRUE or FALSE...
With String.raw, it would simply ignore the escape and print: C:\Documents\Projects\table.html In this case, the string is Hello\nworld, which gets logged. 73. What's the output? async function getData() { return await Promise.resolve('I made it!'); } const data = getData(); cons...