function forMethods(obj, props, callback) {
    var prop;
    if (typeof props === "string") {
      // A single prop string was passed. Create an array.
      props = [props];
    } else if (props == null) {
      // No props were passed, so iterate over all properties, building an
      // array. Unfortunately, Object.keys(obj) doesn't work everywhere yet, so
      // this has to be done manually.
      props = [];
      for (prop in obj) {
        if (obj.hasOwnProperty(prop)) {
          props.push(prop);
        }
      }
    }
    // Execute callback for every method in the props array.
    var i = props.length;
    while (i--) {
      // If the property isn't a function...
      if (toString.call(obj[props[i]]) !== "[object Function]" ||
        // ...or the callback returns false...
        callback(obj, props[i]) === false) {
        // ...remove it from the props array to be returned.
        props.splice(i, 1);
      }
    }
    // Return an array of method names for which the callback didn't fail.
    return props;
  }
function forMethods(obj, props, callback) {
    var prop;
    if (typeof props === "string") {
      
      props = [props];
    } else if (props == null) {
      
      
      
      props = [];
      for (prop in obj) {
        if (obj.hasOwnProperty(prop)) {
          props.push(prop);
        }
      }
    }
    
    var i = props.length;
    while (i--) {
      
      if (toString.call(obj[props[i]]) !== "[object Function]" ||
        
        callback(obj, props[i]) === false) {
        
        props.splice(i, 1);
      }
    }
    
    return props;
  }
function forMethods ( obj , props , callback ) { var prop ; if ( typeof props === "string" ) { // A single prop string was passed. Create an array. props = [ props ] ; } else if ( props == null ) { // No props were passed, so iterate over all properties, building an // array. Unfortunately, Object.keys(obj) doesn't work everywhere yet, so // this has to be done manually. props = [ ] ; for ( prop in obj ) { if ( obj . hasOwnProperty ( prop ) ) { props . push ( prop ) ; } } } // Execute callback for every method in the props array. var i = props . length ; while ( i -- ) { // If the property isn't a function... if ( toString . call ( obj [ props [ i ] ] ) !== "[object Function]" || // ...or the callback returns false... callback ( obj , props [ i ] ) === false ) { // ...remove it from the props array to be returned. props . splice ( i , 1 ) ; } } // Return an array of method names for which the callback didn't fail. return props ; }
Execute callback(s) for properties of the specified object.
Execute callback ( s ) for properties of the specified object .