Course Elementary 3418
Course Introduction：Promise is the most important and difficult technology in ES6. Interviews with medium and large companies will ask about the implementation of front-end Promise. This video tutorial starts from the most basic callback/exception syntax, to the basic use of Promise; from technical analysis of Promise difficulties, to step-by-step handwritten Promise implementation, extended async and await in-depth analysis, macro queue and micro queue detailed explanation; and finally through Classic interview questions to test the effect of Promise learning. After passing the level, you will become a Promise senior engineer.
Course Intermediate 11332
Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.
Course Advanced 17637
Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.
2017-05-16 13:28:36 0 2 1192
javascript - js decimal to hexadecimal
js decimal to hexadecimal conversion failed, I want to convert the result of sim1 to hexadecimal
2017-05-19 10:23:57 0 1 720
How did the teacher calculate this decimal to binary conversion? ? ?
2021-01-23 09:42:20 0 1 1318
Course Introduction：Hexadecimal and octal are part of the number types in Python. Let's see how to specify them one by one. For hexadecimal types, add 0x in front. For example -0x11 For octal type (base 8), add 0 (zero) in front. For example -0O20 Hexadecimal integers in Python The hexadecimal number system uses 10 digits and 6 letters, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, The letters C, D, E, and F represent numbers from 10. A=10. B=11, C=12, D=13, E=14, F=15, also known as the hexadecimal number system. Example To represent a hexadecimal type, add 0x-a=0x12print("H
2023-09-05 comment 0 1212
Course Introduction：To match the Unicode character specified by the hexadecimal digit xxx with a JavaScript regular expression, use the following code - \uxxxx Example You can try running the following code to match the hexadecimal digit character xxxx. It matches the hexadecimal number 53, which is S-<html> <head> <title>JavaScriptRegularExpression</title> &l
2023-08-31 comment 0 1231
Course Introduction：Use the strconv.ParseInt function to convert a string into an integer in a specified base. Although the strconv package in the Go language provides many functions for type conversion, sometimes we still need custom type conversion. When we need to convert a string into an integer in a specified base, we can use the strconv.ParseInt function to complete it. The parameters of the strconv.ParseInt function include the string to be converted, the specified base and the number of digits in the resulting integer. it returns the conversion
2023-07-24 comment 0 1701
Course Introduction：In PHP, the algorithm for converting decimal to octal is decoct(). decoct() can convert a specified decimal number into an octal number. The returned result is a string of octal numbers, and the syntax is "decoct(number);".
2022-02-21 comment 0 2398
Course Introduction：In JavaScript, you can use the parseInt() function to convert a binary value to a decimal value. This function can parse a string with a specified base (base) and return a decimal integer; the syntax "parseInt ("binary string",2)".
2022-02-17 comment 0 6656
