随笔分类 -  JavaScript

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捕获错误并处理try-catch
摘要：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv 阅读全文

posted @ 2019-12-14 17:27 loongw 阅读(777) 评论(0) 推荐(0)

date对象设置set
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posted @ 2019-12-12 22:48 loongw 阅读(299) 评论(0) 推荐(0)

date对象获取get
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posted @ 2019-12-12 21:52 loongw 阅读(445) 评论(0) 推荐(0)

数组增、删方法（push()-unshift()-pop()和shift()）
摘要：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv 阅读全文

posted @ 2019-12-08 17:15 loongw 阅读(603) 评论(0) 推荐(0)

数组排序方法（join()、reverse()、sort()）
摘要：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv 阅读全文

posted @ 2019-12-08 17:13 loongw 阅读(555) 评论(0) 推荐(0)

函数的返回值return
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posted @ 2019-12-06 18:49 loongw 阅读(1107) 评论(0) 推荐(0)

函数function
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posted @ 2019-12-06 18:48 loongw 阅读(200) 评论(0) 推荐(0)

Array数组
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posted @ 2019-12-06 18:46 loongw 阅读(291) 评论(0) 推荐(0)

break与continue
摘要：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv 阅读全文

posted @ 2019-12-06 14:43 loongw 阅读(135) 评论(0) 推荐(0)

while循环
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posted @ 2019-12-06 13:20 loongw 阅读(172) 评论(0) 推荐(0)

switch语句
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posted @ 2019-12-05 23:17 loongw 阅读(174) 评论(0) 推荐(0)

for循环
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posted @ 2019-12-05 23:03 loongw 阅读(306) 评论(0) 推荐(0)

if语句
摘要：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv 阅读全文

posted @ 2019-12-05 23:01 loongw 阅读(552) 评论(0) 推荐(0)

javascript逻辑非（！/！！）
摘要：1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <meta name="viewport" content="width=device-width, initial-scale=1.0"> 6 <met 阅读全文

posted @ 2019-12-05 15:09 loongw 阅读(2140) 评论(0) 推荐(0)

javascript逻辑或（||）
摘要：1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <meta name="viewport" content="width=device-width, initial-scale=1.0"> 6 <met 阅读全文

posted @ 2019-12-05 15:08 loongw 阅读(684) 评论(0) 推荐(0)

javascript逻辑与（&&）
摘要：1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <meta name="viewport" content="width=device-width, initial-scale=1.0"> 6 <met 阅读全文

posted @ 2019-12-05 15:06 loongw 阅读(595) 评论(0) 推荐(0)

JavaScript里的递增"++"和递减"--"
摘要：递增"++"，表示在原来的数值上+1 tips：比如a=1,那么++a或者a++都等于2。 递减"--"，表示再原来的数值上-1，前置/后置递减计算过程同递增 tips：比如a=1,那么--a或者a--都等于0。 1）前置递增 ++a，先计算出递增后的值，再进行其他运算和赋值 tips：比如a=1, 阅读全文

posted @ 2019-12-03 22:22 loongw 阅读(1051) 评论(0) 推荐(0)

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