There are several places colon is used in Java code: 1) Jump-out label (Tutorial): 2) Ternary condition (Tutorial): 3) For-each loop (Tutorial): 4) Assertion (Guide): 5) Case in switch statement (Tutorial): 6) Method references (Tutorial)
these two options work well, unless you have something like: EDIT: try with this and describes what the result FOR EDIT 3: this corrects the problem, but not the idea to use “eval”, you should see how are the response in ‘/Cms/GetPages/123’.
C doesn’t have a foreach, but macros are frequently used to emulate that: And can be used like Iteration over an array is also possible: And can be used like Edit: In case you are also interested in C++ solutions, C++ has a native for-each syntax called “range based for”
There’s no built-in ability to break in forEach. To interrupt execution you would have to throw an exception of some sort. eg. Run code snippetExpand snippet JavaScript exceptions aren’t terribly pretty. A traditional for loop might be more appropriate if you really need to break inside it. Use Array#some Instead, use Array#some: Run code snippetExpand snippet This works because some returns true as soon as any of the … Read more
There’s no built-in ability to break in forEach. To interrupt execution you would have to throw an exception of some sort. eg. Run code snippetExpand snippet JavaScript exceptions aren’t terribly pretty. A traditional for loop might be more appropriate if you really need to break inside it. Use Array#some Instead, use Array#some: Run code snippetExpand snippet This works because some returns true as soon as any of the … Read more
if is not a loop structure, so you cannot “break out of it”. You can, however, break out of the foreach by simply calling break. In your example it has the desired effect: Just for completeness for others that stumble upon this question looking for an answer.. break takes an optional argument, which defines how many loop structures it should break. Example: … Read more
Personally I find this to be the most clean – not sure if it’s the most efficient, mind! The reason for my preference is it doesn’t allocate an empty array when you’ve got nothing to begin with anyway.
bject does not have forEach, it belongs to Array prototype. If you want to iterate through each key-value pair in the object and take the values. You can do this: Usage note: For an object v = {“cat”:”large”, “dog”: “small”, “bird”: “tiny”};, Object.keys(v) gives you an array of the keys so you get [“cat”,”dog”,”bird”]
in angular4 foreach like that. try this.
The easiest way to for-each every char in a String is to use toCharArray(): This gives you the conciseness of for-each construct, but unfortunately String (which is immutable) must perform a defensive copy to generate the char[] (which is mutable), so there is some cost penalty. From the documentation: [toCharArray() returns] a newly allocated character array whose length is the length of this string and whose contents are … Read more