morrxy

https://www.computerhope.com/unix/udiff.htm

-c view differences in context mode -u Unified mode (the -u option) is similar to context mode, but it doesn't display any redundant information -y Display output in two columns

diff file1 file2 
diff -c file1 file2
diff -u file1 file2

diff -y file1 file2

https://stackoverflow.com/questions/12484398/global-template-data

An important distinction between applying a template to a struct vs. to a map: with a map, you can make references in your template which don't exist in your map; the template will execute with no errors and the references will just be empty. If you process against a struct and make a reference to something that doesn't exist in your struct, the template execution returns an error.

https://stackoverflow.com/questions/42434592/how-to-check-empty-value-of-a-string-in-golang-template

{{if .source }}
  <div style="display:none;">
    <input id="username" name="source" value="{{ .source }}"/>
    <input id="username" name="target" value="{{ .target }}"/>
  </div>
{{else}}
  <div>empty</div>

修改配置文件，重启

vim /etc/gitlab/gitlab.rb
sudo gitlab-ctl reconfigure

重启

sudo gitlab-ctl restart

https://stackoverflow.com/questions/16141467/how-to-use-index-inside-range-in-html-template-to-iterate-through-parallel-array

{{range $i, $e := .First}}$e - {{index $.Second $i}}{{end}}

hashicorp/consul-template#267

print

特定类型： https://stackoverflow.com/questions/18342784/how-to-iterate-through-a-map-in-golang-in-order

keys := make([]int)
for k, _ := range romanNumeralDict {
    keys = append(keys, k)
}
sort.Ints(keys)
for _, k := range keys {

fmt.Println(k, romanNumeralDict[k])

	//https://www.dotnetperls.com/parseint-go

	package main

	import (
	"fmt"
	"strconv"
	)

	func main() {

	//https://stackoverflow.com/a/19294004/1215930

	type Data []interface{}

	func (p Data) HasField(name string, value interface{}) bool {
	for _, v := range p {
	if m, ok := v.(map[string]interface{}); !ok {
	return false
	} else if _, ok := m[name]; ok && reflect.DeepEqual(m[name], value) {
	return true

	#https://stackoverflow.com/questions/23466497/how-to-truncate-a-string-in-a-golang-template


	"{{ printf \"%.25s\" .Content }}"