JSON Formatting

Format date background color in your SharePoint list with JSON

{
    "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
    "elmType": "div",
    "txtContent": "@currentField",
    "style": {
       "background-color": 
       {
          "operator": "?",
          "operands": [
             {
                "operator": ">=",/*if the date is greater than tomorrow  24x60x60x1000 = 86400000 = 1day    */
                "operands": [
                   "@currentField",
                   {
                      "operator": "+",
                      "operands": [
                         "@now",
                         86400000
                      ]
                   }
                ]
             },
             "red",
             {
                "operator": "?",
                "operands": [
                   {
                      "operator": "<=",/*if the date is less than today - 60 days*/
                      "operands": [
                         "@currentField",
                         {
                            "operator": "-",
                            "operands": [
                               "@now",
                               5184000000 /* 86400000 x 60 */
                            ]
                         }
                      ]
                   },
                   "yellow",
                   "transparent"
                ]
             }
          ]
       }
    }
  }

Show File size in kilo bytes in sharepoint list

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "div",
  "attributes": {
  },
  "style": {
    "flex-directon": "row",
    "justify-content": "left",
    "align-items": "center",
    "flex-wrap": "nowrap"
  },
  "children": [
    {
      "elmType": "span",
      "txtContent": "=[$File_x0020_Size]/1000 + ' kbytes'"
    }
  ]
}

show button if user if member of a sharepoint group

Compaire now + 30 days

@now>[$testDate]+2592000000
{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "div",
  "style": {
    "flex-directon": "row",
    "justify-content": "left",
    "align-items": "center",
    "flex-wrap": "nowrap"
  },
  "children": [
    {
      "elmType": "div",
      "style": {
        "display": "=if(([$ItemStatus] == 'Pending' || [$ItemStatus] == '') && ([$PermMask]=='0x1b03c5b1bff' || [$PermMask]=='0x7ffffffffffbffff'), 'inherit','none')",
        "flex-directon": "row",
        "justify-content": "left",
        "align-items": "center",
        "flex-wrap": "wrap"
      },
      "children": [
        {
          "elmType": "button",
          "customRowAction": {
            "action": "setValue",
            "actionInput": {
              "ItemStatus": "Approved",
              "ApprovalActionBy": "@me"
            }
          },
          "attributes": {
            "class": "ms-fontColor-themePrimary ms-fontColor-themeDarker--hover"
          },
          "style": {
            "border": "none",
			"display": "=if([$PermMask]>='0x1b03c5b1bff', 'inherit','none')",
            "background-color": "transparent",
            "cursor": "pointer",
            "display": "flex",
            "flex-directon": "row",
            "justify-content": "left",
            "align-items": "center",
            "flex-wrap": "wrap"
          },
          "children": [
            {
              "elmType": "span",
              "attributes": {
                "iconName": "SkypeCircleCheck"
              },
              "style": {
                "padding": "4px"
              }
            },
            {
              "elmType": "span",
              "txtContent": "Approve",
              "style": {
                "word-break": "keep-all"
              }
            }
          ]
        },
        {
          "elmType": "button",
          "customRowAction": {
            "action": "setValue",
            "actionInput": {
              "ItemStatus": "Rejected",
              "ApprovalActionBy": "@me"
            }
          },
          "attributes": {
            "class": "ms-fontColor-themePrimary ms-fontColor-themeDarker--hover"
          },
          "style": {
            "border": "none",
			"display": "=if(([$ItemStatus] == 'Pending' || [$ItemStatus] == ''), 'inherit','none')",
            "background-color": "transparent",
            "cursor": "pointer",
            "display": "flex",
            "flex-directon": "row",
            "justify-content": "left",
            "align-items": "center",
            "flex-wrap": "wrap"
          },
          "children": [
            {
              "elmType": "span",
              "attributes": {
                "iconName": "Blocked"
              },
              "style": {
                "padding": "4px"
              }
            },
            {
              "elmType": "span",
              "txtContent": "Reject",
              "style": {
                "word-break": "keep-all"
              }
            }
          ]
        }
      ]
    },
    {
      "elmType": "div",
      "children": [
        {
          "elmType": "span",
          "txtContent": "='This item is ' + toLowerCase([$ItemStatus])",
          "style": {
            "display": "=if([$ItemStatus] == 'Pending' ||[$ItemStatus] == '' , 'none','inherit')",
            "padding-left": "5px",
            "word-break": "keep-all"
          }
        }
      ]
    }
  ]
}