function isEmpty(value) {
    if (value === '') {
        return false;
    } else if (value === 0) {
        return false;
    } else if (value === null) {
        return false;
    } else if (value === undefined) {
        return false;
    } else {
        return true;
    }
    return true;
}

javascript empty value check

By mr.js, 2017-12-13 11:43:20
class ExampleClass {
    public void DoSomething()
    {
       if (this != null) {
           //omitted
       }
    }
    
    public void DoSomething2()
    {
       if (this != null) {
           //omitted
       }
    }
    
}

Explanation: This can't be null in C# virtual instance methods - I was so confused by the widespread use of this check that I asked this question at SO: https://stackoverflow.com/questions/31747718/can-this-be-null-in-c-sharp-virtual-methods-what-happens-with-the-rest-of-ins

By Michail Michailidis, 2017-12-13 14:54:58

class Timer extends React.Component{
    state ={
        time: 10
    };
    setInvt = () =>{
        let t = this.state.time
        if(t<=1){
            clearInterval(this.invertal)
        }
        this.setState({time: t-1})
    }
    componentDidMount(){
        this.invertal = setInterval(this.setInvt, 1000)
    }

    render(){
        return (<label>{this.state.time}</label>)
    }
}

export {Timer}
By Anonymous, 2021-07-30 21:13:46
sed -i 's/^#HTTPD=\/usr\/sbin\/httpd.worker/HTTPD=/\/usr\/sbin\/httpd.worker/g' /etc/sysconfig/httpd 
By Anonymous, 2017-12-13 18:09:51
double func_atof(char *p){
	double	 integer = 0.0, div = 1.0 , fract = 0.0 , sign = 1.0;
   if(   *p == 45  ){sign = -1.0, *p++ ; }
	while ( isdigit(*p)  ) { 
		integer = ( *p++ )  +  (10.0   *   integer)  -  48.0 ; 
		}
	if(*p == 46  ){
	(*p++ ) ;
	while (  isdigit(*p) )  {
		fract = ( *p++ )  +  (10.0   *   fract)  -  48.0  ; 
		div *= 10;		
		}
    }
  return    (integer  +   fract  / div )  * sign    ;
}
By Lazy_8, 2020-01-13 16:53:53
 const configs = {
    employeeObject: {
      // tab 0
      firstName: "",
      middleName: "",
      nickname: "",
      lastName: "",
      gender: "",
      race: "",
      title: "",
      dob: "",
      employeeIDNo: "",
      // tab 1
      userName: "",
      permissionRole: 0,
      employeeNo: "",
      phoneExt: "",
      startDate: "",
      company: "",
      division: "",
      jobDescription: "",
      businessUnit: "",
      regionId: "",
      participantStatus: "",
      costCentre: "",
      personType: "",
      comments: "",
      // tab 2
      phone1: "",
      phone2: "",
      phone3: "",
      address1: "",
      address2: "",
      address3: "",
      address4: "",
      postalCode: "",
      email: "",
    },

Why add another object with a title when you can just add a comment saying... well... nothing really...

By Mr Verster, 2022-04-08 14:19:12
typedef NS_ENUM(NSUInteger, MyEnum1) {
    PackagesNo1 = 1,
    PackagesNo2 = 2,
    PackagesNo4 = 4,
    PackagesNo8 = 8
};

typedef NS_ENUM(NSUInteger, MyEnum2) {
    LEVEL0 = 0,
    LEVEL1 = 1,
    LEVEL2 = 2,
    LEVEL3 = 3
};

- (int)packagesNeededForLevel:(int)level {
    switch (level) {
        case LEVEL0:
            return PackagesNo8;
        case LEVEL1:
            return PackagesNo4;
        case LEVEL2:
            return PackagesNo2;
        case LEVEL3:
            return PackagesNo1;
    }
}

well done mr junior

By Anonymous, 2021-04-12 09:37:34
          //////////////////////////////////////////
          // Add ROI coordinates into Environment
          //////////////////////////////////////////
          AddROIcoordinatesIntoEnvironment();

It really helped me understand the code.

By Anonymous, 2022-05-30 00:49:45
if(computedDate != null){
    myObject.setDueDate(computedDate);
}
else{
    myObject.setDueDate(null);
}
By Anonymous, 2018-02-22 04:46:08
def possibilities():
    alphabets=(n,o,r,t,h,e,a,s,u,w,m,y)
    combinations=list()
    for n in range(9,-1,-1):
            for o in range(9,-1,-1):
                    for r in range(9,-1,-1):
                            for t in range(9,-1,-1):
                                    for h in range(9,-1,-1):
                                            for e in range(9,-1,-1):
                                                    for a in range(9,-1,-1):
                                                            for s in range(9,-1,-1):
                                                                    for u in range(9,-1,-1):
                                                                            for w in range(9,-1,-1):
                                                                                    for m in range(9,-1,-1):
                                                                                            for y in range(9,-1,-1):
                                                                                                    if len(set([n,o,r,t,h,e,a,s,u,w,m,y]))==12:
                                                                                                    north=10000*n + 1000*o +100*r +10*t +h
                                                                                                    east=1000*e +100*a +10*s +t
                                                                                                    south=10000*s + 1000*o +100*u +10*t +h
                                                                                                    west=1000*w + 100*e +10*s +t
                                                                                                    earth= 10000*e + 1000*a + 100*r +10*t +h
                                                                                                    if north +east +south +west == earth:
                                                                                                            combinations.append((north,east,south,west,earth))

    return combinations
By Dusk Code, 2018-04-25 11:47:49
public static class time
{
    public const int minutes_per_hour = 60;
    public const int seconds_per_minute = 60;
    public const int hours_per_day = 24;
    public const int minutes_per_day = minutes_per_hour * hours_per_day;
    public const int seconds_per_day = seconds_per_minute * minutes_per_day;
    public const int days_per_year = 365;
}
By Anonymous, 2018-10-15 17:15:52
FOR x IN ( SELECT COUNT(*) cnt
            FROM DUAL
           WHERE EXISTS ( SELECT NULL FROM task
                           WHERE task.task_type_id = lib.task_type_check()
                             AND task.task_status_id = lib.task_status_open()
                             AND task.unit_id = in_unit_id
                             AND task.station_id = v_station_id
                        )
         )
LOOP
  IF( x.cnt = 1 ) THEN
    v_task_exist := TRUE;
  ELSE
    v_task_exist := FALSE;
  END IF;
END LOOP;
By Anonymous, 2019-08-01 15:25:36
precision mediump float;
uniform float time;
uniform vec2 resolution;
#define equals =
#define divided /
#define plus +
#define minus -
#define times *
#define by
#define point .
#define zero 0.
#define one 1.
#define five 5.
#define output gl_FragColor
#define then {
#define end }
#define less <
#define than
#define increment ++
#define afterwards ;
#define comma ,
#define semi .5
#define hundred 100.
void main ( void ) then
	vec2 uv equals gl_FragCoord point xy divided by resolution point xy afterwards
	float number equals sin( time plus uv point y ) afterwards
	for ( float i equals zero afterwards i less than five afterwards increment i) then
		number equals mod ( uv point x comma number ) afterwards
	end
	output equals vec4 (uv point x comma uv point y comma number times hundred comma one ) afterwards
end
By Anonymous, 2017-12-14 17:39:23
private static final double RESULT_OF_DIVISION_BY_0 = 9.99;

public static double getPercentageDifference(long currentResult, long previousResult) {
    if (previousResult == 0 && currentResult == 0) {
        return 0;
    } else if (previousResult == 0) {
        return RESULT_OF_DIVISION_BY_0;
    } else {
        return (currentResult - previousResult) * 1.0 / previousResult;
    }
}
By Anonymous, 2017-12-20 10:56:50
case ClientMessage:    
    if (*XGetAtomName(GLWin.dpy, event.xclient.message_type)
        == *"WM_PROTOCOLS")
        {   printf("Exiting sanely...\n");
            done = True;
        }
    break;

someone just want to watch the world burn

By Anonymous, 2018-01-07 13:01:05