Would there be any downside to make all properties of a class lazy?
That’s one of the dangers of syntactic sugar in a language — it hides the complexity of what’s happening underneath. A lazy property essentially generates a fair amount of code on your behalf.Take an extremely simple class like this:class Container { var contained: Int = 0}Compile it down to the Swift Intermediate language (SIL), and it’s 183 lines of SIL, which takes about 12KB. Add `lazy` in front of `var` and it pops up to 343 lines (22KB) of SIL. I’d paste the comparison here, but it’s frankly too much SIL to absorb.Make it two properties? 232 lines (15KB) vs 476 lines (32KB). So it’s not additional code that you pay once for, but there’s overhead code for each lazy property.If you’re interested to look at the SIL yourself, I made a Gist: example-industrious-one.silWhat’s the downside to lazy properties? It’s work. Just because the compiler is doing that work on your behalf doesn’t mean it’s not there. It has a price. If that price is worth paying, by all means, use them. But if you don’t need a lazy property, you’re making the CPU do work that it didn’t need to do. You’re slowing down your program and increasing your app size for no reason.
Historically, have REIT's or actual rental properties performed better?
Personally, I would not compare REITS with rental properties. That’s like comparing going into some business with buying stock in a public company that is in that same business.Owning and renting real estate is a business. It is way more work than owning stock in a company that invests in real estate, but you will have way more personal control over the outcome. Owning real estate can be a good sideline business. The long term returns can be good and, if you are conservative with financing, it can be fairly safe. Owning shares in a REIT is like owning any other kind of shares. There are always risks that can’t be absolutely quantified.The performance of REITS varies widely as does the performance of rental properties. There is no meaningful comparison to make. If you want to own shares in a company that promises a steady dividend return, REITS can fill that bill, but owning shares in a REIT is nothing like owning rental property.
What are the different ways gene therapy can be performed?
There are four ways that i remember (but i'm sure there are more) 1/ Genes are "shot" into the cell nucleus via gold pellets in the hope that one might fit into the right slot and not destroy the cell completely 2/ A chromosome is cleaved with certain enzymes that recognise particular spots on the chromosome. A gene is introduced into the mixture and another enzyme is added and joins ends together. Some of them will be joined correctly with the added gene in between. 3/ Bacteria use the plasmid method of gene transfer with genetic material being passed between cells and joined onto its own copy of nucleic acid. These plasmids are made as partial copies of themselves and transferred onwards (this is the method of spread in antibiotics resistance) 4/ The gene is placed in a mixture with cells of interest. Using electrical currents and varying temperature, this may stress the cell membranes enough to allow the gene segment to enter the cell and integrated with its nucleic acid chain.
Are property managers dependable for taking care of your rented property?
Before taking a decision whether to sign up with property manager/property management company or not, to take care of your property , analyse the points that might plays a roleAdvantages of having a property managerProfessional property managers will take care of everything from initial marketing to the legal formalitiesTenant screening will be performed to on board the right tenantProperty managers can handle the typical tenants when they create an issue for an unnecessary things as they are aware of legal lawsThe challenging task to handle a rental property is handling tenant calls regarding maintenance issuesThey will perform the frequent maintenance checks & identify the issues at earlier stages and get the repair work done so that it can lead to big structural damageProperty managers will take routine maintenance calls , associate with the respective vendors, get that work done on time, update the tenants regarding progress etc which may not be possible for you always as you are busy with professional work .PMs can send the reminders to make the rental payments on time and behave with them strictly if required, so that your will cash flow will not be interruptedBased on the agreements, property managers will speak to the client accordingly and take care of the necessary actionIf the client is planning to exit, Property managers will start marketing the property and get the new tenant.There is obviously a disadvantage associated with property manager, as h/she is loaded with multiple properties , they will consider yours as a part of their portfolio but not as only one .Keeping the one disadvantage aside there are multiple advantages by going with the property , that might help you in many aspects regarding your property.I wish the above mentioned points helps you to take a proper decision.
Do I need to get a property survey done even if I am buying a condo and not a house?
Although not all lenders require that the purchaser obtain - and pay for - a property survey or real estate survey, it is definitely recommended that every purchaser authorize the settlement provider to obtain a property/real estate survey. It should be noted that the typical property survey that is provided at a settlement only shows the location of the house on the lot.Do you have a real estate survey? While the title insurance industry will generally not accept a title claim based solely on the property survey itself, the survey will assist the purchaser in determining whether fences, trees or other such objects are properly located within the property being conveyed.Other concerns:EncroachmentFlood zonesElevationA survey gives every homeowner a clear border line to know exactly what they do or do not own. If your property line is crossed, then an encroachment has transpired, and a Real Estate Attorney will be needed to resolve disputed claims.If you are buying a condominium unit, you will not have to obtain -- or pay for -- a separate survey of your unit. That survey has already been done as part of the plans which were recorded with the condominium documents.
How do you solve a linear equation using two equality properties of addition and multiplicaton.?
I've never heard of the "two equality properties of addition and multiplication", but the idea behind equations is that you perform the same operation to both sides, which always keeps equality. So, in your first example, we can subtract 4 from both sides: y + 4 - 4 = 21 - 4 y + 0 = 17 ... (the +4 and -4 cancel to give 0) y = 17 ... (y plus nothing will give you y always) In your second example, we can multiply both sides by 6: z/6 * 6 = 5 * 6 6z / 6 = 30 ... (consider the left hand side as a fraction) z / 1 = 30 ... (we can cancel 6 from numerator and denominator) z = 30 ... (anything divided by 1 is itself) Notice that, in both cases, there is some cancellation. In the first, it was the cancelling of a positive and a negative. The second it was the cancelling of a fraction. The connection between the two processes may not be obvious, but they are linked. In both cases, we identify what's being done to our pronumeral (i.e. y or z). In the first equation, y has had a 4 added to it. In the second equation, the z has been divided by 6. So, in order to get y and z on their own, we have to "undo" what's already been done to them. How do we "undo" adding by 4? We subtract by 4. How do we "undo" dividing by 6? We multiply by 6. These are "inverse operations", in that, if one is performed, we do the other to get back where we started. So, if I gave you the equation: 5x = 25 you would notice that x has been multiplied by 5. What's the inverse operation for multiplication by 5? Division by 5. We need to divide both sides of this equation by 5 in order to "undo" the multiplication by 5, and get x on its own. This gives us: 5x / 5 = 25 / 5 x / 1 = 5 x = 5 This concept of inverse operations extends well beyond linear equations as well. It may be hard to wrap your head around now, but later it will come in handy when you come up against some seriously non-linear equations, e.g. when you get trigonometry or logarithms.